What Is Green Manure? How to Fertilize Plants Correctly High Efficiency

Today, people have realized the harmful effects of using chemical fertilizers, so they are looking to organic fertilizers. Therefore, organic fertilizers are optimized, especially green fertilizers. Let’s learn about green manure with BSF Smart Farm.

What Is Green Manure?

Green fertilizer, also known as green manure, is the fertilizer formed from the corpses of green plants. Green manure is one of the organic fertilizers. It can be tree carcasses, fruit carcasses, coffee grounds, herbaceous plants… All these fresh ingredients are composted. Often put in to fertilize plants or press green, cabinets for the roots of perennial plants. Farmers depend on the purpose of using green manure as fertilizer. They will choose different crops to compost.

Effects of Green Manure

  • Fast and effective soil improvement: Green fertilizer contains a high amount of N. When buried in the soil, they will quickly increase the organic and N content. The roots of green manure develop very strongly. The ability to use high amounts of indigestible nutrients. Therefore, it is possible to absorb a lot of both indigestible and easily digestible food in the deep soil layers. Accumulate into plants, allowing topsoil to become richer in nutrients.
  • Green fertilizers also help improve saline soils effectively: Saline soils are soils with high total soluble salts and Na+. Leads to adverse effects on plant growth and development. The improvement of saline soil with the use of green manure has a rapid soil cover effect. Reduce the amount of water evaporating from the ground. Reduces increased salinity and salinity from groundwater. When burying fertilizer in the soil, by decomposing organic matter. Thereby reducing the harmful effects of soil colloidal dispersion of Na+.
  • Soil protection, erosion prevention, nutrient leaching: The cover of fertilizers on the ground helps to cover. Avoid direct rainfall, help prevent soil structure breakage and runoff to wash away the soil. Retain dissolved nutrients, block the wind. Should be effective against leaching and erosion under the action of water and wind. Green manure also has the effect of retaining water for the soil, covering the ground. Do not let sunlight reflect directly on the soil.

Ingredients For Composting Green Manure

  • Green manure plants are usually legumes, but there are also some species of plants from other families such as water lily, wild anemone, etc., which are also used in many places as green manure. There are many species of green manure that are planted by farmers for the purpose of fertilizer, but there are also some wild plants that are used as green manure. Legumes often have symbiotic microorganisms that live on their roots and help the plant absorb nitrogen from the air. This amount of nitrogen can later provide a part for plants. Legumes are also more able to absorb indigestible phosphorus and potassium from the deeper soil layers than many other plants.

  • Green manure plants are easy to grow, grow fast and strong. In addition to being used as fertilizer for plants, green manure plants are also used as mulching plants, shade trees, soil retention plants to prevent erosion, soil improvement plants, and soil fertility enhancement.
  • Green manure plants have many species and have wide adaptability, so green manure plants can be grown in many places and it can be said that anywhere can grow green manure. It is very important in preserving and improving the soil and makes a great contribution to increasing the productivity of crops.

Green Manure Plants

  • The green manure plants that are grown in many places in our country are: Muong, Dien Thanh, currant peas, acacia acacia, stylo grass, thornless virgin, etc..

  • Green manure plants have great adaptability, but not all plants can be grown anywhere. The yield of green matter and the ability to grow of plants can vary depending on the soil and the specific conditions in each place. Some species are suitable for the foothills of the hills, some are suitable for the sandy soils, some are suitable for the southern provinces, some are suitable for the northern mountainous provinces, etc.
  • Therefore, it is necessary to select species suitable to local conditions for planting to obtain good results. Green manure plants also often work only in certain structures with plant species, so it is necessary to choose reasonable cropping structures with suitable green manure composition for intercropping, in gardens with cusp.

Which Fertilizer Group Does Green Manure Belong To

Green manure is an organic fertilizer consisting of the aboveground parts of the plant. Green manure is often used fresh, not through the composting process, so green manure is effective only after it is decomposed. Therefore, people often use green manure to fertilize annual plants or to “squeeze green” (from the root) for perennial plants.

Pros and Cons of Green Manure

Advantages: Has the effect of protecting and improving the soil environment and limiting erosion.
Disadvantages: It is easy to decompose organic matter when buried in the ground. Decomposing green manure plants often generates toxic substances such as CH4, H2S, etc. These substances cause organic poisoning. Besides, it also has a slow effect and is only used for fertilizing.

How to Use Green Manure Properly

  • When green manure plants flower, people plow them and bury them in the ground because at this time the green manure plants have a high biomass yield, the plants do not have seeds, so the seeds have not fallen to the ground to grow into seedlings, which hinders the cultivation of main crops. after.

  • Use green manure to fertilize plants when making soil.
  • Introduced into the intercropping system on the main crop garden.
  • Root cabinets, bed cover, “squeezing green” for perennial plants.
  • Cut the plow leaves to bury directly into the soil, this is a simple, convenient, and less labor-intensive way.
  • Cut branches, leaves, stems, and green manure to cover the surface of the soil or the base of the plant.
  • Compost the stem and leaves of the plant and then fertilize the plant. This method is often applied to the case that the harvest time of green manures does not coincide with the sowing season.
  • Green manure plants can be trimmed and covered directly on the surface of the soil or composted


Attention When Using Green Manure

  • Should add phosphate fertilizer when burying fertilizer in the soil. This will contribute to accelerating the process of organic decomposition of the soil. Helps provide large amounts of nutrients to plants.

  • With fertile soils containing light mechanical components. It is necessary to bury green manure in the deep layer with stable moisture. For acidic soils, add lime or phosphorus, or fused phosphorus.
  • Burying manure in the summer crop will be better, facilitating the decomposition of manure. When burying manure in rice fields, it is necessary to avoid letting plants decompose when flooded. It will lead to the reduction of compound S contained in H2 which inhibits water absorption. Moreover, it also inhibits the absorption of nutrients for rice.
  • It is necessary to bury manure in the soil earlier before applying water to the field. It is safest to bury the fertilizer about 20 days in advance.

How to Make Green Manure At Home

2 thoughts on “What Is Green Manure? How to Fertilize Plants Correctly High Efficiency

  1. viburnum says:

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