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    Which plants in Australia need humate humic acid

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    Leo
    ·August 18, 2025
    ·18 min read
    Which plants in Australia need humate humic acid

    Many plants in Australia grow better when farmers use humate humic acid. Broadacre crops, horticultural crops, turf, pasture grasses, native species, and ornamental plants all get help from humates. More than fifty years of research shows that humates help soil keep nutrients, increase soil microbes, and help plants grow well in hard Australian conditions.

    • Humates make phosphate and nitrogen easier for plants to use, so less fertiliser is wasted.

    • Humic acid helps fungi and bacteria, which makes soil stronger and keeps more water.

    • Field tests show up to 35% better nutrient use and plant growth when humates are used with normal fertilisers.

    Key Takeaways

    • Humate humic acid helps many plants in Australia grow better. It makes the soil and roots healthier and stronger. It helps plants use nutrients like nitrogen and phosphorus more easily. This means less fertiliser is wasted. Humates help the soil keep more water. This helps plants live through dry and hard times. Good microbes in the soil grow more with humate. These microbes help plants stay healthy and recycle nutrients. Using humate when planting or when plants are young works best for crops and pastures. Mixing humate with fertilisers like urea helps plants use nutrients better. This makes plants grow bigger. Different soils need different amounts of humate to work well. This helps the soil hold water and stay strong. Using good humate products, even ones from other countries, can save money. It can also help farms work better.

    Plants in Australia That Benefit

    Plants in Australia That Benefit

    Broadacre Crops

    Broadacre crops are very important for farming in Australia. Wheat, barley, canola, and sorghum are grown a lot. Farmers often have trouble with soil that does not have many nutrients. The weather is also dry in many places. Humate and humic acid help these crops by making the soil better. They make nutrients easier for plants to use. Humates stick to nutrients so plants can take them up more easily. This helps roots grow stronger and deeper. Plants also grow bigger and healthier. Sweet potato grows much better with humic acid, especially with urea fertiliser. Studies show roots work better and crops give more food. Humate-treated crops can produce more and survive tough conditions.

    Horticultural Crops

    Horticultural crops are vegetables, fruits, and flowers. Many of these plants do well with humate and humic acid. Humates help roots grow faster and stronger. Plants take up more nutrients and crops are better quality. The table below shows how humic acid helps some important crops:

    Horticultural Crop

    Effect of Humic Acid Application

    Specific Observations

    Peppers (Capsicum annuum grossum)

    More fruits and flowers

    Peppers with humic acids from food waste vermicomposts did better than those with commercial humic acids.

    Strawberries (Fragaria ananasa)

    More root growth and fruits

    Humic acid made roots bigger and gave more fruit.

    Marigolds (Tagates patula)

    More root dry weight

    Roots grew better with humic acid.

    Tomatoes

    Heavier fruits

    Fruit got heavier with humic acid.

    Bar chart showing yield and quality improvements in peppers, strawberries, marigolds, and tomatoes after humic acid application.

    Peppers, strawberries, marigolds, and tomatoes get better results with humic acids from vermicomposts. Humate products help roots get stronger. Strong roots help plants find water and nutrients. This is very useful for crops in tough Australian soils.

    Turf and Lawns

    Turf and lawns are found in parks, sports fields, and gardens. These plants often have problems with poor soil and not enough water. Humates and humic acid help turf and lawns in many ways:

    • Humates help fungi break down cellulose, which builds humus and makes soil better.

    • Humates can hold lots of water, up to seven times their own weight.

    • This helps keep soil wet when it is dry outside.

    • Humic acid helps roots grow, so turf can handle stress and salty fertilisers.

    • Humates help plants use nutrients better, so less fertiliser is needed.

    • Research in Victoria shows humates make soil more stable, which helps turf grow strong.

    Humate and humic acid are good for people who look after turf or lawns in Australia. Strong roots and more water in the soil make grass greener and healthier. You do not need to use as much fertiliser.

    Pasture Grasses

    Pasture grasses are very important for farming in Australia. Farmers use these plants to feed animals and keep paddocks healthy. Ryegrass, clover, kikuyu, and phalaris are some common pasture grasses. These grasses often have problems like bad soil, not enough nutrients, and dry weather. Humate and humic acid help pasture grasses in many ways.

    Humates make roots bigger and help them grow faster. Strong roots let grasses reach water and nutrients deep in the ground. This makes plants healthier and gives more grass for animals. Humic acid also helps roots get better after animals eat the grass or when it is dry. Farmers see thicker grass and stronger plants when they use humate.

    Tip: Using humate often helps roots grow and keeps pastures good all year.

    Humic acid helps pasture grasses take in more nutrients. Plants get more nitrogen, phosphorus, and potassium. This means less fertiliser is wasted and plants grow better. Humates also help good microbes in the soil. These microbes break down old plants and give nutrients to new ones. This helps farmers keep their pastures healthy and strong.

    Here are some ways humate helps pasture grasses:

    Benefit

    Impact on Pasture Grasses

    Increased root mass

    Roots grow stronger and deeper

    Improved nutrient uptake

    Plants grow better and give more

    Enhanced soil structure

    Pastures stay strong and healthy

    Boosted microbial life

    Paddocks are better for farming

    Farmers who use humate and humic acid see better soil and plants for a long time. These products help give animals good food and help farming in Australia.

    Native and Ornamental Plants

    Native and ornamental plants are a big part of gardens and land in Australia. People like these plants because they look nice and are good for nature. Many native plants, like grevillea, banksia, and eucalyptus, grow in soil with few nutrients. Ornamental plants, such as roses, camellias, and azaleas, often need extra care to grow well.

    Humate and humic acid are very helpful for native and ornamental plants. These products help roots grow, which is important for plants to live in tough places. Strong roots help plants survive dry times and get better after stress. Humates also help roots grow faster, so plants can settle in after planting.

    Humic acid makes more nutrients in the soil easy for plants to use. Native plants, which often do not get enough phosphorus, do better with humic acid. Ornamental plants grow better, have brighter flowers, and look healthier with humate. Gardeners say humic products help plants move to new places and grow strong roots.

    Note: Putting humate in the soil when planting helps native and ornamental plants grow strong roots and stay healthy for a long time.

    Humates also make soil better and help it hold more water. This is very important for sandy or poor soils in Australia. Better soil helps plants grow and means you do not need to water as much.

    Key Benefits

    Soil Fertility

    Australian soils do not have enough nutrients. The soil is often not strong. Humate humic acid helps soil hold more nutrients and water. Farmers and gardeners see the soil get stronger. This helps roots grow better and lets air move in the soil. Humate works like a sponge. It keeps nutrients and water in the soil for longer. This means plants can use more nutrients and less fertiliser is wasted. When the soil gets better, roots can grow deeper and wider. Plants can reach more water and food. Tests by Omnia Specialities in Australia show humate makes roots bigger. Plants take up more nutrients. Soil and plant tests prove these results. Growers can use this to give plants what they need to grow best.

    • Soil holds more nutrients and water

    • Soil gets stronger and helps roots grow

    • Roots get bigger and take up more water and nutrients

    • Plants use nutrients better

    Soil gets better when humate humic acid is used often. Plants grow stronger and healthier, even in hard places in Australia.

    Nutrient Uptake

    Humate humic acid helps plants take in more nutrients. It is important for crops and pasture grasses. Tests on Humalite show humate gives plants more nitrogen. Plants also get more phosphorus, potassium, sulphur, magnesium, manganese, boron, iron, and zinc. Humate stops nitrogen from being lost as gas. It helps plants take in nitrate by changing the soil around the roots. Humate also helps plants make special pumps and acids. Humate acts like a cytokinin. This helps plants take in more nutrients and grow better. These things help plants use nitrogen better. Plants grow bigger and give more food. Farmers in Australia see plants use nutrients better and grow stronger.

    Mechanism

    Impact on Nutrient Uptake

    Stops nitrogen loss

    More nitrogen for plants

    Helps special pumps work

    Plants take in more nitrate

    Acts like cytokinin

    Plants take in more nutrients

    Makes roots bigger

    Plants get more nutrients

    Humate humic acid helps plants use fertiliser better. Less is wasted. Plants take in more nutrients. They grow better and give more food.

    Water Retention

    Water is very important for Australian soils. Many places are dry. Potassium humate helps soil keep more water. It makes soil pieces stick together. This helps soil hold water and stay wet longer. Potassium in humate helps plants keep water when it is dry. Humin, another part of humate, keeps soil strong for a long time. This helps soil hold water well. Farmers who grow wheat use potassium humate. They do not need to water as much. Studies in Victoria show potassium humate makes soil stronger in acid and salty soils. It stops soil from breaking apart. Big humic acid molecules help soil stay together. This helps soil keep water through wet and dry times.

    • Potassium humate helps dry soils keep water

    • Crops and pasture grasses can handle dry times better

    • Strong soil holds water for a long time

    • Farmers do not need to water as much

    Using humate humic acid often helps soil keep more water. Plants can handle dry times better.

    Microbial Activity

    Healthy soil needs lots of active microbes. Microbes are tiny living things like bacteria and fungi. These microbes break down old plants and release nutrients. Plants use these nutrients to grow and stay strong. Humate humic acid helps microbes in many ways.

    Humate humic acid gives microbes food. It is a source of carbon. Microbes use carbon to grow and make more microbes. When there are more microbes, plants get more nutrients. Microbes also help protect roots from disease. In Australia, soils are often dry and have little organic matter. This makes it hard for microbes to live. Humate humic acid helps fix this problem.

    Farmers and gardeners see better results with humate humic acid. Microbes work harder and break down plant leftovers faster. This gives more nutrients to the soil. Plants can use these nutrients more easily. Humate humic acid also helps microbes build good soil structure. Good soil lets air and water move well. Roots can grow deeper and stronger.

    Tip: Using humate humic acid often keeps microbes busy. This helps plants take up more nutrients and stay healthy.

    Microbes help cycle nutrients in the soil. They change nutrients into forms plants can use. This means plants take up more and less fertiliser is wasted. Humate humic acid makes more helpful microbes grow. It also helps fungi that work with roots. These fungi are called mycorrhizae. Mycorrhizae help plants get water and nutrients.

    Here are ways humate humic acid helps microbes and plants:

    • Makes more microbes in the soil

    • Helps break down old plants faster

    • Gives more nutrients for plants to use

    • Supports mycorrhizal fungi for better uptake

    • Builds better soil for strong roots

    Soil with lots of active microbes helps plants use fertiliser better. Plants take up more nitrogen and phosphorus. Farmers see stronger crops and greener grass. Gardeners see more flowers and better growth. Humate humic acid helps by supporting the living part of the soil.

    How It Works

    Biological Effects

    Humate and humic acid help plants grow in many ways. They work as natural biostimulants. This means they help crops and pastures in Australia grow well.

    • Humic acid helps roots take in more nutrients by grabbing minerals. This makes it easier for roots to use them.

    • It acts like plant hormones called auxins, cytokinins, and gibberellins. These hormones help roots get longer and make more branches. Leaves also turn greener.

    • Humates help good bacteria and fungi grow. These microbes make more phosphate available for plants. Without them, phosphate would stay stuck in the soil.

    • Plants with humic acid can handle dry and hot weather better. This is because humic acid helps plants make more antioxidants. Antioxidants protect plants from stress.

    • Humates also change how enzymes work. They help with protein use and photosynthesis. These changes help plants grow taller and make more leaves and stems.

    How well humic acid works depends on when and how much is used. The stage of plant growth matters too. If used the right way, humates help crops and pastures stay strong and healthy.

    Chemical Effects

    Humic acid and humate change how nutrients act in the soil. In Australia, they form strong bonds with metals like cadmium, copper, and zinc. Humic acid has special groups that stick to these metals. This stops the metals from moving around or dissolving in water. It lowers the chance of metal poisoning in crops. This is important in salty soils or soils with little organic matter. Humates hold onto metals and stop them from getting into food. This is very important for farming in Australia. The weather and soil can make contamination worse. Humic acid also keeps important nutrients in the soil. Plants can use these nutrients for a longer time.

    Physical Effects

    Humate and humic acid make Australian soils better. Potassium humate comes from brown coal in Victoria. It helps soil pieces stick together and stay strong.

    • Lab tests show potassium humate makes soil clumps bigger and stronger.

    • Clay and humate mix to protect soil from breaking apart when it gets wet or dry.

    • Some parts of humate make a layer that keeps water out. This layer stops soil from washing away and keeps it together.

    • Humic acids last longer in soil than many man-made products. They keep helping the soil for a long time.

    • Acidic soils do well with less potassium humate. Soils with lots of sodium need more for best results.

    Strong soil clumps stop erosion and help farms stay productive. Humate is a good soil helper. It keeps soil healthy for many years in Australia.

    Application Methods

    Soil Application

    Farmers in Australia mostly use humate by putting it in the soil. They pick soluble humate granules from leonardite because these work better. Lignite-based products do not work as well. Farmers mix 5 kg per hectare of granules with fertilisers. In horticulture, they sometimes use 10 kg per hectare. Root crops do better when humic acid is mixed with fulvic acid. Some farmers add a little humic acid to irrigation water. This helps plants use water better. Too much humate should not be used. Trials showed 20 kg per hectare gave the best corn yield. Using more than this made yields go down. Farmers must use clean tools and store humate well to keep it working.

    Tip: Make sure the water pH is neutral, between 7 and 8, when mixing humate with irrigation water. This keeps humate dissolved and easy for plants to take up.

    Foliar Spray

    Foliar spray is another good way to use humate. It helps plants quickly when they need it. This method means spraying a weak solution on the leaves. Foliar sprays help plants make food and grow more. They work even better with liquid lime. For wheat, using humic acid in the soil and spraying micronutrients on leaves gives the best growth and grain. Foliar sprays help when soil does not give enough nutrients. Using too much can burn leaves, so farmers must follow the right amounts.

    Application Method

    Main Benefits

    Suitable Crops

    Notes

    Soil application

    Makes soil better, keeps water, helps plants use nutrients

    Wheat, broadacre, turf

    Good for long-term soil and plant health

    Foliar spray

    Helps plants make food, gives more nutrients and bigger crops

    Wheat, horticulture

    Best before flowers appear

    Combined soil + foliar

    Works together for best yield and quality

    Wheat, vegetables

    Use both for biggest benefit

    Timing and Rates

    Using humate at the right time and amount gives the best results. For soil, the best time is when planting or when plants start to grow. This helps roots get strong and plants settle in fast. For pastures and broadacre crops, use humate before summer to help plants handle dry weather. Foliar sprays work best before flowers appear because plants need more nutrients then. Do not spray after flowers on sensitive crops, as this can stress them.

    Application Mode

    Best Time

    How Much To Use

    Crop Examples

    Soil Application

    Planting, early growth

    5–20 kg/ha (granules); 1–5 L/ha (liquid)

    Wheat, pasture, vegetables

    Foliar Application

    Before flowers

    1–5 g/L solution

    Wheat, horticulture

    Seed Soaking

    Before sowing

    2–10 g/L for 6–24 hours

    Wheat, vegetables

    Farmers should not use too much humate. High amounts can lower yields or leave too much in the soil. Soils with little organic matter work best with humate. Mixing humate with fertilisers like DAP or urea helps plants use nutrients better. For root crops, adding fulvic acid helps even more. Each farm should check results and change how much they use if needed.

    Australian Leonardite

    What Is Leonardite?

    Leonardite is a soft, waxy, black or brown mineraloid. It forms when lignite changes because of oxygen. Leonardite has lots of humic acid, sometimes up to 90%. In Australia, you can find Leonardite in Bacchus Marsh, Victoria. Farmers and gardeners use Leonardite to help soil. They put it straight on the ground or use it for humic acid or potassium humate. Leonardite makes soil better and helps tiny microbes grow. It helps plants get bigger and stronger. Leonardite also helps keep carbon in the soil by speeding up microbes. When mixed with compost, Leonardite can stop plants from taking in too many metals. It helps clean up dirty soil. Many farm products in Australia use Leonardite as a humate source. It gives slow-release humic and fulvic acids. These acids help plants take in nutrients and keep soil healthy. Farmers use 100 to 400 kg per hectare each year. They use it as powder or mix it with water for irrigation. Farmers often use Leonardite with other fertilisers to make them work better and use less chemicals.

    Why Imported Humic Acid from China?

    Many farmers in Australia buy humic acid fertilisers from China. China makes a lot of humic acid because it has lots of raw materials and cheap labour. This makes Chinese humic acid cheaper for Australian farmers. Studies from the Chinese Academy of Agricultural Sciences show Chinese humic acid helps crops grow and take in nutrients. Companies like G-Teck BioScience make humic acid for Australian farms. These products help crops grow more and keep soil healthy. They also help farms use better methods for the future. China makes a lot of humic acid, so there is always enough and prices stay low. This helps all farms in Australia, big and small.

    Advantages of Chinese Imported Humic Acid

    Chinese humic acid has many good points for farming in Australia:

    • It costs less because China makes it cheaply.

    • Chinese companies use good methods to keep quality high.

    • Tests in Tasmania showed potato farmers could use half as much fertiliser and still get good crops. Plants kept water better and grew evenly.

    • Products like Fertica H+ help plants get more nutrients, especially phosphorus and potassium. They also make soil better and help good microbes.

    • Humic acid holds onto nutrients, stops them from washing away, and helps the environment. This means farms can keep working well and spend less money.

    Benefit

    Impact on Australian Agriculture

    Lower cost

    Good for all sizes of farms

    Reliable supply

    Always available all year round

    Improved nutrient uptake

    Crops grow better and healthier

    Enhanced soil structure

    Soil keeps more water and roots grow deeper

    Support for soil microbes

    Soil gets stronger and lasts longer

    Farmers in Australia who use Chinese humic acid see crops grow better, soil get healthier, and spend less on fertiliser. These good results make Chinese humic acid a smart choice for farming in Australia.

    Tips for Success

    Combining with Fertilisers

    Australian farmers often mix humic acid with normal fertilisers. This helps plants grow stronger and handle tough weather. Humate works as a bio-stimulant. It helps good microbes in the soil and makes nitrogen move better. Farmers put humate on urea granules. This stops nitrogen from escaping into the air and helps plants use it more. Pasture grows better and can handle stress from the environment.

    • Humate helps good microbes, including those that change nitrite and nitrate.

    • The bio-stimulant effect gives plants more nitrogen and better nutrition.

    • Mixing humate with nitrogen fertilisers like urea can stop nitrogen loss.

    • Humate is cheap and easy to use, so it helps farmers use nitrogen well.

    Plants may react differently because humic substances are not all the same. Local soil and weather also matter. Longer trials and careful use help get steady results. Farmers should watch what happens and change how much they use for best growth.

    Adapting to Soil Types

    Australian soils can be sandy or full of clay. Each type has its own problems for plants. Humic acid makes soil better by helping it stick together and hold water. This helps crops stay strong and survive dry weather.

    Soil Type

    Humic Acid Benefits

    Application Tips

    Sandy soils

    Makes bigger soil clumps

    Use more for strong soil

    Clay soils

    Makes more space for roots

    Use a medium amount

    Dryland areas

    Keeps more water in soil

    Mix with plant boosters

    Humic acid sticks small soil bits together. This makes sandy soil stronger and keeps water in. In clay soil, humic acid makes it less packed and gives roots more room. Farmers in dry places use humic acid to keep soil wet and help crops grow. Changing how much humic acid is used for each soil type helps plants grow better and handle tough times.

    Tip: Humic acid helps roots grow better. This makes soil stronger and gives bigger crops, even when conditions are hard in Australia.

    Monitoring Results

    Checking how humic acid helps soil and plants is important for good results. Farmers and gardeners use different ways to see if crops are stronger and healthier.

    • Test soil electrical conductivity (EC) to see if salt levels change.

    • Check soil carbon and nitrogen to see if soil gets richer.

    • Look at how well soil clumps stay together and how strong they are.

    • Take soil samples often, like after 1, 2, 4, and 8 weeks.

    • Measure micronutrients (Cu, Fe, Mn, Zn) in a lab.

    • Watch plant growth, leaf colour, fruit size, and seed sprouting.

    • Use clean tools and mix solutions carefully for best results.

    Regular checks help farmers change how much humic acid they use and how they put it on. Looking at soil and plant data helps them make smart choices and keep getting better results.

    Humate humic acid helps Australian crops and gardens grow well. The table below shows how different plant groups get better:

    Plant Category

    Key Advantages

    Wheat, Rice, Corn, Soybean, Potato

    More crops, better quality, stronger roots, plants handle stress better

    General Soil

    More nutrients, healthier microbes, less pollution

    Post-Harvest

    Food stays fresh longer, lasts more days

    Gardeners and farmers notice plants are stronger and soil is healthier. They should try humate humic acid, watch how plants grow, and change what they do for best results. People at home and on farms both get better ways to feed plants and keep soil healthy.

    FAQ

    What is humate humic acid?

    Humate humic acid is a natural soil helper. It comes from old, broken-down plants and animals. Farmers and gardeners use it to make soil better. It helps plants take in nutrients and grow strong.

    Which Australian plants respond best to humate humic acid?

    Many plants in Australia do well with humate humic acid. Broadacre crops, vegetables, turf, pasture grasses, native species, and ornamentals all benefit. Potatoes, carrots, beetroot, and sweet potato grow more food and have stronger roots when humate humic acid is used.

    How often should growers apply humate humic acid?

    Growers put humate humic acid on at planting and when plants start growing. They use it again before tough times like summer or drought. This helps plants stay healthy.

    Can humate humic acid reduce fertiliser use?

    Humate humic acid helps plants use nutrients better. Many growers say they use less fertiliser but still get good crops. This saves money and helps the environment.

    Is humate humic acid safe for native Australian plants?

    Native plants do well with humate humic acid. It helps roots grow and lets plants live in poor soil. Gardeners use it when planting new native plants.

    Does humate humic acid improve water retention in sandy soils?

    Humate humic acid helps sandy soil hold more water. Plants can reach water for longer. This is very useful in dry parts of Australia.

    Should humate humic acid be mixed with other fertilisers?

    Growers often mix humate humic acid with nitrogen or phosphorus fertilisers. This helps plants use nutrients better and stops waste. Always use the right amount for best results.

    Where can growers buy quality humate humic acid in Australia?

    Many farm shops sell humate humic acid. Chinese humic acid is good quality and not expensive. Growers should pick trusted brands for the best results.

    See Also

    Plants That Respond Well To Humic Acid Treatment

    Advantages And Applications Of Humic Acid Across Australia

    Vietnamese Crops That Require Humic Acid Fertiliser

    Mexican Plants That Flourish With Humate Fertiliser Use

    Brazilian Plant Species Benefiting From Humate Fertiliser