1、Optimal Nitrogen Fertilizer Rates for Soybean Cultivation

Legume plants, which include soybeans, generally do not require copious nitrogen fertilizer application because they can live in symbiosis with rhizobia, leading to the reduction of atmospheric N 2 forms available for the host plant. They require only small amounts of available nitrogen at the start of the growing period.

2、Nitrogen uptake, fixation and response to fertilizer N in soybeans: A

Given the fact that, in most situations, growing soybean does not result in a net N input to the system, it is likely that the soybean N credit used in many N fertilizer recommendations (e.g. for maize in the USA) does not represent a net contribution of N from the atmosphere to the system.

3、Soybean response to nitrogen fertilizer in different soils

Because soybeans are heavy nitrogen (N) users, there is a common perception that N fertilizer application can aid high-yielding soybeans. Higher crop prices and higher yields in recent years have increased this interest to some extent.

Soybean Nitrogen Nutrition

If the soybean field consistently yields less than 70 bu/ac, it should not require N fertilizer to raise the yield. Instead, several other early-, mid- and late-season management practices can be adjusted before looking into N.

Nitrogen Fertilizer for Soybean

Because soybean does not fix enough N to satisfy its own needs, but rather, removes N from the soil at both low and high soybean yield levels, the concept of an N credit is not supported.

Nitrogen management in Soybean: A Review

It contains about 40-42% protein and 20-22% oil and is one of the major cash crop of rainy season.The plant growth parameters like plant height, leaf area index (LAI) and dry matter accumulation of soybean increased with application of nitrogen from 30-80 kg N ha -1.

Do Soybeans Need Fertilizer? Nitrogen, P, K, and More

While soybeans manage their nitrogen supply, they require significant amounts of phosphorus (P) and potassium (K), which must be sourced from commercial fertilizer or soil reserves.

Nitrogen Management Soybean

There is definitive recommendation about whether or not to apply N fertilizers or manure to a soybean crop. However, there are situations when application of supplemental N to soybean is NOT recommended because it can limit yield, waste money, or have a negative impact on the environment.

Nitrogen Fertilizer Recovery and Partitioning Related to Soybean Yield

Despite N fertilization has been considered as one of the alternatives to meet crop N requirement and enhance soybean yield, it is a controversial topic in the literature.

(PDF) Nitrogen management in Soybean: A Review

The oil content increased with application of nitrogen upto 40 kg N ha-1. Application of nitrogen also improved soil properties like organic carbon, available NPK and saturated hydraulic...

Soybean, scientifically known as Glycine max, is an essential crop for food and oil production. In agriculture, it provides abundant protein, fat, and various microelements and vitamins. if soybean rots, its nutritional components may transform into toxic substances, posing health risks to humans.

1. Is Rotten Soybean a Nitrogen Fertilizer?

First, it is crucial to clarify that soybean itself contains no nitrogen. Nitrogen fertilizer refers to chemical fertilizers rich in nitrogen, which promote plant growth. rotten soybean cannot become a nitrogen fertilizer.

2. Is Rotten Soybean a Phosphate Fertilizer?

During decomposition, proteins and organic matter in soybean are broken down by microorganisms, producing some phosphorus-containing compounds. These can serve as phosphate fertilizers, but in limited quantities. While rotting soybean may release traces of phosphate, this does not make it a primary phosphate fertilizer.

3. Is Rotten Soybean a Potassium Fertilizer?

After rot, the potassium content in soybean increases slightly. This occurs because microorganisms absorb and transform some of the soybean’s potassium into other forms. Thus, rotten soybean can act as a potassium fertilizer, but only in appropriate amounts.

4. Is Rotten Soybean an Organic Fertilizer?

The organic matter in decaying soybean is decomposed by microorganisms, yielding organic fertilizers. These can improve soil structure and fertility. the rotting process releases harmful substances like ammonia, requiring cautious handling.

5. Environmental Impact of Rotten Soybean

Microbial decomposition of soybean produces harmful gases and pollutants, affecting air and soil quality. Proper measures are needed when disposing of rotten soybean to avoid environmental harm.

Rotten soybean is not a nitrogen fertilizer but can be used as an organic fertilizer. due to the release of harmful substances during decomposition, caution must be exercised to prevent environmental damage.