1、Soybean response to nitrogen fertilizer in different soils
Our results showed that a single N application at R1 did not increase soybean yield in any location, while applying N at R3 or R5 increased grain yield in only one of nine locations.
2、Optimal Nitrogen Fertilizer Rates for Soybean Cultivation
The aim of this study was to determine the effect of varied nitrogen fertilizer application rates on the dry weight of the separated parts of soybean plants and the whole plant, including the number and weight of root nodules, the potential to reduce atmospheric nitrogen (N2), and the content and uptake of nitrogen.
3、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.
Nitrogen Fertilizer for Soybean
An N "budget" developed from numerous research studies shows that soil and fixed N are generally sufficient to supply N needs at yields up to 60 bu/acre. As yields increase to 80 bu/acre and higher, an N deficit may result.
Soybean fertilizer guidelines
Research in the region has shown that use of fertilizer N may increase yields where producers have experienced problems getting good nodulation and the amount of NO 3 -N to a depth of 24 inches is less than 75 lbs./acre.
Nitrogen Fertilization in Soybean: Influence on Nutritional Status
Biological nitrogen fixation (BNF) is what makes soybean economically viable. However, the launch of cultivars, with a high-yield potential and abiotic factors that reduce BNF, raised doubts...
Nitrogen Fertilizer Recovery and Partitioning Related to Soybean Yield
This study checked the nitrogen (N) uptake, fate of the N fertilizer, fertilizer recovery efficiency (FRE) and the residual amount of N fertilizer in the soil via 15 N-labelled fertilizer applied to soybean (Glycine max L. Merr.), to explain any differences in the yields.
Soybean yield response to nitrogen and sulfur fertilization in the
Low N rates in soybeans resulted minor or no impact on N fixation. Soybean [Glycine max (L.) Merr.] is the most important legume grown worldwide. The effect of nitrogen (N) and sulfur (S) fertilization on seed yield is commonly studied in the United States (US).
Optimal Nitrogen Fertilizer Rates for Soybean Cultivation
The aim of this study was to determine the effect of varied nitrogen fertilizer application rates on the dry weight of the separated parts of soybean plants and the whole plant, including the number and weight of root nodules, the potential to reduce atmospheric nitrogen (N2), and the content and uptake of nitrogen.
Nitrogen Fertilizer for Soybean?
This article discusses the N needs of today’s higher yielding soybean crops, sources of N supply to the crop and whether N fertilizer applications may be needed for maximum soybean yields.
Soybean-fermented water-soluble fertilizer is a nutrient product made from soybeans through fermentation. It contains abundant nutrients, including essential macroelements for plant growth such as nitrogen (N), phosphorus (P), and potassium (K). it can be considered a type of nitrogen fertilizer.
First, let us analyze the main components of soybean-fermented water-soluble fertilizer. This fertilizer primarily consists of organic matter produced by soybean fermentation. Through microbial action, these organic compounds are transformed into plant-available nutrients, including nitrogen, phosphorus, and potassium. Among these, nitrogen is a critical element for plant growth, playing a vital role in photosynthesis and protein synthesis. Consequently, the nitrogen content in soybean-fermented water-soluble fertilizer serves as a key indicator of its effectiveness as a nitrogen source.
Next, we can calculate its equivalence to nitrogen fertilizer. If we know the nitrogen concentration in the fertilizer and the crop’s nitrogen requirement (typically expressed in kilograms of nitrogen per hectare), we can determine how much soybean-fermented water-soluble fertilizer equals a given amount of nitrogen fertilizer.
The formula is as follows: Equivalent nitrogen fertilizer (kg) = Nitrogen content in soybean-fermented fertilizer (%) ÷ Crop’s nitrogen demand (%)
Example: If the soybean-fermented fertilizer contains 10% nitrogen, and the crop requires 25 kg of nitrogen per hectare, then: Equivalent nitrogen fertilizer = 10% ÷ 25% = 4 kg of nitrogen fertilizer per hectare.
Other factors must also be considered, such as the crop’s growth stage, soil conditions, and climate. For instance, drought may limit nitrogen uptake, requiring adjustments to application rates.
In summary, soybean-fermented water-soluble fertilizer provides comprehensive nutrients, including nitrogen, phosphorus, and potassium. By calculating its nitrogen equivalence, farmers can optimize usage while accounting for environmental and crop-specific variables to ensure healthy plant growth.
