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    Sodium humate vs potassium humate

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    Leo
    ·July 15, 2025
    ·21 min read
    Sodium humate vs potassium humate

    For most farming uses, you should pick potassium humate instead of sodium humate. Potassium humate gives plants important potassium. This helps plants grow well and makes soil better. Good soil leads to more crops. Sodium humate can help plants handle stress. But it does not give potassium. Using too much sodium humate can hurt the soil. Picking the right humate helps farms grow more crops. It also helps your plants do their best.

    Key Takeaways

    • Potassium humate is a great choice for most farms. It makes soil healthier and helps plants grow strong. Plants can make more food with it. Potassium humate mixes easily with water and fertilizers. This makes it simple to use in many ways on farms. Sodium humate can help plants deal with stress. But too much sodium humate can hurt soil and crops. This happens because it has a lot of sodium. You should test your soil before using humates. This helps you choose the right product and amount for your crops. Potassium humate helps good soil microbes live and grow. It helps soil hold water better. It also helps plants take in nutrients more easily. Use potassium humate early in the season for best results. It helps roots grow and helps plants in dry or hard times. Keep humate products in cool, dry places. Keep them away from sunlight so they work well for your farm. Listen to experts and use humates the right way. This will help you get good results and keep your soil healthy for a long time.

    Key Differences

    Comparison Table

    You need to know how sodium humate and potassium humate are different in farming.

    Main Distinctions

    You want to pick the best humic acid for your soil and crops. Both potassium humate and sodium humate come from humic acid, but they work in different ways. Potassium humate gives your crops potassium, which is important for plants. It mixes well in water, so you can use it in many fertilizers. It helps soil stay healthy, keeps water in the soil, and helps plants use nutrients. Crops like rice, wheat, corn, and soybeans grow better and give more food when you use potassium humate.

    Sodium humate has sodium instead of potassium. This makes it act differently in the soil. It does not mix as well in water, and using too much can cause problems. Too much sodium can hurt the soil and make crops less healthy. Big farms usually do not use sodium humate. You might use it for special reasons, but it does not help plants get nutrients like potassium humate does.

    Lab tests show these two humic acids have different chemical bonds. Sodium humate makes more ionic bonds. Potassium humate has more covalent bonds. This happens because each metal ion connects with the carboxylate groups in humic acid in its own way. These bonds change how each product works in the soil and how well it moves nutrients.

    Tip: For most crops and soils, potassium humate works best. It helps soil, roots, and nutrients. Sodium humate can be used for special needs, but you should be careful.

    When you look at these humic acids, think about your soil, your crops, and how to keep your land healthy for a long time. Potassium humate usually gives you more good results and fewer problems.

    Humates in Agriculture

    What Are Humates

    You might hear about humates when learning how to make soil better for farming. Humates are natural things full of humic acid. They come from old coal beds and mudrock. Farmers and soil experts have used humates since the 1970s to help soil grow more crops. Adding humic acid to soil makes it easier for plants to grow. Humic substances, like humates, help soil stay strong and hold more water. These natural materials also help plants get more nutrient from the soil. This means crops grow healthier and give more food.

    Humic acid works like a link between organic matter and plant roots. It helps soil keep water and nutrient, so crops can use them when needed. Humates can act like plant hormones, such as auxin, which helps roots grow deeper and stronger. This lets plants reach more nutrient and water, even when it is dry. Using humic acid helps farms stay healthy for a long time.

    Role in Soil

    When you put humates in soil, you change how the soil acts. Humic acid is a biostimulant. This means it helps plants use nutrient better. Here is what humates do for soil and plants:

    • Humic acid makes soil structure better. Roots can grow easier, and water moves through soil faster.

    • Humic substances help soil keep more water. This is good for crops when it does not rain much.

    • Humates help good microbes in soil work harder. These microbes break down organic matter and give plants more nutrient.

    • Humic acid helps keep soil pH balanced. This makes it easier for plants to get nutrient.

    • Humates help break down stuck nutrient and bad stuff. This lets plants use more of what is in the soil.

    You will see roots grow better and plants get bigger with humic acid. Studies show even one use of humates can help plants grow and make more good grass than weeds. This means soil gets better, and crops get stronger and healthier. Using humic acid means you do not need as much chemical fertilizer. This helps farms use more natural ways to grow food. Over time, you add more organic matter to soil. This makes soil better and helps crops grow more for many years.

    Note: Humates help you get more from your soil by making it better, adding organic matter, and letting crops use more nutrient.

    Sodium Humate

    Production

    Sodium humate is made by mixing humic acid sources like lignite or leonardite with sodium hydroxide. This process pulls out humic substances and changes their structure. The final product has a lot of sodium ions. Sodium humate has a high amount of humic acid, which makes it very active. You can find it as a black or dark brown powder or small grains. The sodium in it makes it different from other humic products. This difference changes how it works in soil and with plants.

    Effects on Soil

    Salinity

    When you use sodium humate, it changes how salts move in soil. Studies in the Yellow River Delta show it can lower soil salt by almost 48% compared to soil with nothing added. The humic acid in sodium humate helps soil hold more water, raising water content by up to 17%. The humic substances help soil form strong clumps. These clumps let water move through soil better, which helps wash away salts. Humic acid also swaps sodium ions for calcium and magnesium ions. This swap lowers salt stress on crops and keeps soil healthy.

    Note: Using too much sodium humate can make soil lose water faster because water moves more easily. Always use the right amount to stop this problem.

    Long-Term Impact

    Over time, sodium humate keeps changing soil in many ways. The humic acid keeps making soil structure better and helps soil hold more water. You get better air in soil and stronger clumps. These changes stop soil from getting hard or packed down. Humic substances also help soil keep a good pH balance, which helps plants grow well. But if you use too much sodium humate or use it too often, sodium can build up in soil. High sodium can hurt soil structure and lower crop yields. You should test your soil and change how much sodium humate you use to keep soil healthy for years.

    Plant Growth

    Stress Risk

    Sodium humate can help plants deal with stress. The humic acid in it helps roots grow and helps plants recover from dry or salty soil. In greenhouse tests, sodium humate made roots better and gave soybeans more nodules. It also helped good bacteria live on seeds, making seed treatments work better. When you use sodium humate with helpful bacteria, plants take in more nutrients and grow more in crops like tomato, corn, and potato. These good effects come from how humic substances help soil and roots.

    Crop Sensitivity

    Some crops react in different ways to sodium humate. Legumes like soybeans get the most help. Sodium humate makes roots branch out more and helps good bacteria stick to roots. This helps plants fix more nitrogen and give higher yields. In potatoes, using humic acid with good bacteria can make over twice as many tubers. But some crops do not like too much sodium. If you use too much sodium humate, sodium can build up and hurt these crops. Always check your soil and what your crops need before using sodium humate. Change how much you use to fit your soil and crop needs.

    Tip: Use sodium humate for crops that need help with stress or work well with good bacteria. Watch for signs of too much sodium in soil, especially if you use it a lot.

    Pros and Cons

    When you think about using sodium humate for your farm or animals, you should look at both the good and bad sides. This product has some special benefits, mostly for animals, but you also need to be careful.

    Advantages of Sodium Humate:

    • Broiler chickens can grow faster and get heavier. Studies show they can weigh almost 4% more and have over 6% more meat.

    • Animals can use their food better. This means you spend less money on feed.

    • Sodium humate helps animals have stronger immune systems. It helps them fight sickness.

    • It helps animals digest food better. It makes a film in the gut that keeps out toxins and bad germs.

    • You can use fewer chemical additives. This helps make farming cleaner and better for the environment.

    • Animals can take in more minerals like calcium and other important elements. This helps their bones and health.

    • Sodium humate has antioxidant, antiviral, and detoxifying effects. These help keep animals healthy.

    Note: Many farmers use sodium humate to help animals stay healthy and save money. It works well for chickens and other farm animals.

    Disadvantages and Cautions:

    • Broiler chickens might have less phosphorus in their blood when you add sodium humate to their water. We do not know all the long-term effects yet.

    • You should be careful and watch your animals closely. We still need more big studies to know if it is safe for all animals.

    • You might not get the same results every time. Always test and change how you use it for your own needs.

    If you want to try sodium humate, start with a small amount and see what happens. Test often and watch your animals to stop problems and get the best results.

    Potassium Humate

    Production

    Potassium humate is made from humic acid-rich stuff like leonardite or lignite. These materials are mixed with potassium hydroxide. This process pulls out humic substances and connects them with potassium ions. The end product is a dark powder that mixes well in water. Most potassium humate you buy has about 47% potassium humate by weight. This makes it a strong source of humic acid and potassium for soil.

    You can use potassium humate as a powder. Many farmers spread it on fields at about 8 kilograms per acre. This gives soil a steady supply of humic acid and potassium. Both are important for plant growth and soil health. The humic acid in potassium humate helps soil structure and lets crops use nutrients better.

    Tip: Always test your soil before using potassium humate. This helps you use the right amount and not waste any.

    Potassium Humate Fertilizer

    Potassium humate fertilizer is a great choice for most crops. It works fast and dissolves in water easily. Raw humic acid does not mix well, but potassium humate does. You can use it in many fertilizer mixes and irrigation systems.

    Here are some reasons to pick potassium humate fertilizer for your fields:

    • It helps soil structure by supporting good microbes. These microbes break down organic matter and move nutrients.

    • It helps soil keep more water, especially near roots. This helps crops during dry times.

    • It raises soil organic matter and stops soil from getting packed. Your soil gets healthier and grows more crops.

    • It improves cation exchange capacity (CEC). This means soil holds more nutrients like nitrogen, phosphorus, and potassium.

    • It acts as a chelating agent. This helps plants take in trace elements and supports photosynthesis.

    • It helps crops handle stress from drought, salt, and temperature changes.

    • It supports sustainable farming by making soil stronger and needing less chemical fertilizer.

    Note: Field studies show potassium humate fertilizer can help crops like maize and soybeans grow more. You get even better results when you use it with helpful microbes.

    Soil Benefits

    Fertility

    Potassium humate helps soil fertility a lot. When you add it, soil particles stick together better. This makes more space for air and water, so roots grow easier. The humic acid in potassium humate holds onto nutrients, so they do not wash away. Plants get a steady supply of nitrogen, phosphorus, and other nutrients.

    You also get more soil organic matter. This helps more microbes live in the soil. These microbes break down organic stuff and give out nutrients. Potassium humate can raise your soil’s cation exchange capacity by up to 50%. This means soil can hold more nutrients and give them to crops when needed. Over time, you see stronger plants and bigger harvests.

    Water Retention

    Potassium humate helps soil keep water. The humic acid in it helps soil hold water, especially near roots. This is important when it is dry. Plants can use water for longer, even without rain.

    Potassium humate makes soil particles clump together. This creates more spaces for water to move and stay in the soil. You see less runoff and less erosion. Crops get steady moisture, which helps them grow well.

    Callout: Better water holding means you use less irrigation. This saves money and helps the environment.

    Potassium humate also stops soil from getting packed down. Loose soil lets roots grow deeper and reach more water and nutrients. You get healthier plants and better harvests, even when conditions are tough.

    Plant Health

    Potassium humate helps plants stay healthy. When you use potassium humate fertilizer, your crops get stronger. They also grow more food. The humic acid in potassium humate changes how plants grow. It helps plants deal with stress. Your plants look better and give more food. They can also handle bad weather better.

    Root Growth

    Healthy roots help plants grow well. Potassium humate helps roots in many ways. The humic acid makes soil softer. Roots can move through the soil easier. You get more roots and longer root systems. These roots go deeper and find more water and nutrient. Potassium humate helps roots spread out and fill more space.

    • Potassium humate makes more and longer roots.

    • Humic acid helps roots grow faster and stronger.

    • Roots work better and take in more nutrient.

    • Strong roots help plants live through dry times and stress.

    Tip: Use potassium humate fertilizer early in the season. This gives roots a good start. Your crops can handle dry weather and poor soil better.

    Nutrient Uptake

    Plants need nutrient to grow and make food. Potassium humate helps plants get more nutrient from the soil. The humic acid acts like a bridge between soil and roots. It holds nutrient close to the plant. Your crops use more of the fertilizer you give them.

    • Humic acid makes nutrient easier to use in the soil.

    • Potassium humate helps plants take in more nitrogen, phosphorus, and potassium.

    • Plants get more nutrient, so leaves are greener and harvests are bigger.

    • Humic substances help good microbes break down organic matter and release more nutrient.

    • Potassium humate helps plants keep water and nutrient during dry times by closing stomata.

    Potassium humate also helps plants make more enzymes and hormones. These help flowers and fruit grow. Your crops get stronger and fight disease better. Over time, humic acid builds up in the soil. The soil gets richer and grows more food. You get healthy plants and more crops every year.

    Note: Potassium humate feeds your plants and makes soil better. You help your soil and crops for a long time.

    Choosing the Right Humate

    Selection Factors

    Soil Type

    Check your soil before picking a humate. If your soil has too much sodium or is not strong, sodium humate will not help. Too much sodium can hurt your soil and lower how much food you grow. If your soil is healthy and has the right nutrients, potassium humate is best. It makes soil better and helps crops grow more. Always test your soil for pH and nutrients. Try to keep pH between 6.0 and 7.5. This helps humates work well and helps crops grow strong.

    Crop Needs

    Different crops need different nutrients to grow. Potassium humate works for most crops, especially ones that need strong roots and lots of food. Use it for rice, wheat, corn, soybeans, fruit trees, and vegetables. Sodium humate can help crops under stress, but watch out for salt in the soil. If you want more crops and healthy plants, potassium humate is the best choice for your farm.

    Application Tips

    Dosage

    You need to use the right amount of humate for your soil and crops. Using too much or too little can hurt your plants. Here is a simple guide for using potassium humate:

    Application Method

    Recommended Rate

    Notes

    Base Fertilizer

    5-10 kgs per hectare

    Mix with N, P fertilizers

    Mixed with Nitrogen Fertilizer

    5% of total nitrogen blend (e.g., 5 kgs per 100 kgs of urea)

    Adjust for soil condition

    Soil Irrigation

    5-8 kgs per hectare per application

    Dissolve and filter before drip irrigation

    Use these amounts for fruit trees, tea, citrus, grapes, strawberries, melons, vegetables, and rice. Always change the amount if your soil test or crops need something different.

    Mixing

    Mixing humate the right way helps it work better. First, dissolve potassium humate in water. Then add other fertilizers. Do not mix with very sour or high-calcium products. Always read and follow the instructions from the maker. For drip irrigation, filter the mix so it does not clog. Good mixing helps nutrients get to roots and makes soil better.

    Tip: Put humates on crops when they are growing fast. Do not use them when it is raining so you do not lose nutrients.

    Common Mistakes

    You can stop mistakes by doing these things:

    1. Test your soil before each use. Change how much and how often you use humate based on the test.

    2. Keep a regular schedule that matches when your crops grow.

    3. Buy good humate from trusted sellers.

    4. Start with a small amount. Only use more if your soil and crops do well.

    5. Do not mix humates with things that do not work together. Always check first.

    6. Keep humate in a cool, dry place away from sun and water.

    Common Mistakes in Humate Application

    How to Avoid Them

    Incorrect dosages and timing

    Apply during active growth; avoid rain

    Inadequate dilution or mixing

    Adjust concentration; mix well

    Combining with incompatible materials

    Test compatibility; follow instructions

    Skipping soil testing

    Always test soil before application

    Improper storage

    Store in cool, dry, shaded areas

    Using low-quality products

    Buy from reputable suppliers

    Inconsistent application schedules

    Follow regular schedule

    Note: Careful use and checking your soil helps you get the best from humates and grow more crops.

    Research and Recommendations

    Scientific Findings

    You want to make a good choice for your farm. New studies help you decide. Scientists tested sodium humate and potassium humate in many places. They checked how these products change soil, plant growth, and animal health. Potassium humate helps plants use more nutrient from the soil. It also makes soil structure better and helps humic acid work well. This means your crops use fertilizer better and grow more.

    In animal tests, potassium humate did not hurt beef quality or how long it lasts. It kept the minerals in meat the same. There were small changes in fat, but nothing bad for animals or your farm. Sodium humate had mixed results. Sometimes it helped, but often it did not change animal growth or meat quality. You want results you can trust. Potassium humate gives you steady results.

    Scientists also tried these products to clean air in factories. Potassium humate took out more sulfur dioxide from gas than sodium humate. It worked better than other things used for cleaning air. This shows potassium humate works well in soil and for the environment.

    When you use potassium humate, you get better results for soil, crops, and animal feed. Sodium humate does not give you the same steady benefits.

    Expert Advice

    Farm experts and soil scientists agree on one thing. You should use potassium humate for most farms. It gives your soil more humic acid and potassium. Both help crops stay healthy. Humic acid helps soil hold water and nutrients. Potassium helps plants grow strong roots and handle stress. You want your soil to stay healthy for a long time. Potassium humate builds up humic matter in soil and makes it richer.

    Soil experts say you should test your soil first. Check for sodium and nutrients before you start. If your soil has too much sodium, do not use sodium humate. Too much sodium can break soil and stop plants from getting nutrients. Potassium humate does not cause these problems. It works with humic acid to make soil better and help crops grow more.

    You should also use humic products the right way. Mix potassium humate with water and other fertilizers. Put it on when crops are growing fast. Do not use it when it is raining a lot. Keep your humic acid products in a cool, dry place. Always buy from good sellers.

    Tip: Use potassium humate to get the most from your soil, crops, and fertilizer. You will see healthier plants, stronger roots, and more crops.

    Cost and Availability

    Price

    You want to know the price of potassium humate and sodium humate before treating your soil. Potassium humate costs more than sodium humate. It is more expensive because it takes extra work to make and many people want it for soil. You pay more for potassium humate because it helps crops grow better and keeps soil healthy for a long time. Sodium humate is cheaper, but it does not help soil or plants as much.

    Potassium humate is often sold in pure or special forms. These types cost more, but they work better in soil and help your plants more. If you buy a lot for big farms, you might get a discount. Always check prices from different sellers and look at the quality before buying. A higher price for potassium humate usually means your soil and crops will do better.

    Tip: Buying good potassium humate can save you money later. It makes your soil better and you may not need as much other fertilizer.

    Market Access

    You can buy potassium humate and sodium humate in many countries. Potassium humate is easier to find now because more farmers want natural ways to help soil. The market for potassium humate is growing quickly. Experts think it could be worth almost one billion dollars by 2035. You see more choices in places like North America, Europe, and Asia-Pacific. These areas use new tools, better ways to use humates, and have rules that help farmers.

    Some companies sell potassium humate with special coatings, smart soil tools, or extra plant helpers. These new products make it easier to use and help your soil more. Sometimes, it costs a lot to make or ship these products. In some places, farmers do not know much about humates, so you may need to learn first. Still, there are more sellers and it is easier to buy each year. Sodium humate is not as popular, so there are fewer choices because most farmers pick potassium humate for their fields.

    Note: Always ask if your seller can help with soil tests and give advice. This helps you use humates the right way and get the best results.

    Storage

    You must store humate products the right way to keep them working well. Keep potassium humate and sodium humate in a cool, dry place. Do not let them sit in the sun or near water. If the storage is wet, the product can stick together or not work as well. Use closed containers to keep out water.

    Label your containers with the date and type of humate. This helps you remember when you got it and what it is. Do not mix old and new batches. Always use the oldest one first. If you do these things, your humate stays fresh and ready for your next use.

    Callout: Storing humate the right way keeps it strong and helps your soil and crops every time you use it.

    Environmental Impact

    Soil Health

    You want your soil to stay healthy for a long time. Potassium humate helps you do this. It makes nutrients easier for plants to use. Plants grow better and you get more crops. Roots can reach more nutrients in the soil. Potassium humate helps good microbes live in the soil. These microbes break down old plants and help move nutrients around. When you add potassium humate, the soil keeps a steady pH. This helps plants take up nutrients more easily.

    Potassium humate sticks to heavy metals in the soil. This means plants take in fewer bad things. Over time, the soil gets stronger and holds together better. The soil does not wash away or get packed down as much. It also keeps more water near the roots. This helps crops when it is dry outside. Potassium humate makes clay–humate complexes that protect the soil. These last longer than many man-made products.

    Sodium humate can change soil health too, but you must be careful. Too much sodium can build up and hurt the soil. You might see the soil get weaker and hold less water if sodium is too high. Always test your soil before using sodium humate. Both humates help the soil, but potassium humate gives more lasting benefits.

    Tip: For healthy soil over time, pick potassium humate. It helps soil fertility, keeps water in the soil, and builds up organic matter.

    Sustainability

    You want your farm to use good, sustainable ways to grow food. Potassium humate and sodium humate come from natural sources. Making them uses safe methods that do not hurt the earth. These humic substances help you use less chemical fertilizer. When you use humates, soil gets better and plants grow stronger. They also help plants deal with dry weather or poor soil.

    Humic substances add more organic matter to the soil. This helps more microbes live and move nutrients around. You get stronger plants and more crops with less need for bug sprays. Potassium humate and sodium humate both help trap toxic metals and bad chemicals in the soil. This keeps the soil cleaner and safer. Studies show humic substances help plants grow and fight stress. This supports sustainable farming.

    Using humates fits with today’s goals for a healthy planet. They make soil better, help it hold water, and let you grow more food with fewer chemicals. By choosing humates, you help soil health, soil fertility, and your farm’s future.

    Callout: Using humates is a smart choice for sustainable farming. You protect your soil, keep more water in it, and help your land for years to come.

    You should pick potassium humate for most farm jobs. It gives crops potassium, helps them grow strong, and makes soil better. Potassium humate has many good points:

    • Helps soil soak up water and move nutrients

    • Makes plants fight disease better and give more food

    • Lowers the chance of hurting plants with fertilizer

    Sodium humate has some big problems:

    • Makes soil salty

    • Hurts plant cells

    • Makes soil lose water and weakens plants

    Always pick the right humate for your soil and crops. Use fertilizer the right way and check your soil to keep your farm doing well.

    FAQ

    What is the main benefit of potassium humate for crops?

    You give your crops potassium with potassium humate. This helps plants grow stronger roots and take up more nutrients. You see better yields and healthier plants in most soils.

    Can you use sodium humate on all types of soil?

    You should not use sodium humate on soils with high sodium or poor drainage. Too much sodium can damage soil structure and hurt plant growth. Always test your soil first.

    How do you apply potassium humate to your fields?

    You can mix potassium humate with water and spray it on crops. You can also blend it with other fertilizers or use it in drip irrigation. Always follow the recommended rates for your crop.

    Is potassium humate safe for organic farming?

    Yes, potassium humate comes from natural sources. Many organic farms use it to improve soil and plant health. Always check with your certifying agency before use.

    Does sodium humate help with plant stress?

    Sodium humate can help plants handle stress from drought or salt. You should use it carefully. Too much sodium can harm sensitive crops and soil.

    How do you store humate products?

    You keep humate products in a cool, dry place. Use sealed containers to protect them from moisture and sunlight. Label each container with the date and product type.

    Can you mix humates with other fertilizers?

    You can mix humates with most fertilizers. Avoid mixing with very acidic or high-calcium products. Always check compatibility and follow the manufacturer’s instructions.

    What crops benefit most from potassium humate?

    You see the best results in rice, wheat, corn, soybeans, fruit trees, and vegetables. These crops grow stronger roots and produce higher yields with potassium humate.

    See Also

    Comparing Potassium Fulvate And Humate: Differences And Uses

    Exploring The Features Of Super Potassium Humate Flakes

    How Sodium Humate Is Used And Applied In Vietnam

    Choosing Between Sodium Humate And Additives For Aquaculture

    A Guide To Potassium Humate Fertilizer For Healthy Plants