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Optimized recommended fertilization method for soybeans

A technology for recommending fertilization and soybeans, which is applied in the field of agricultural resources and the environment, can solve problems such as inability to fully reflect the supply of soil nutrients, time-consuming soil testing and analysis, and difficulty in testing soil formulations, etc., to promote a virtuous cycle and utilization, and is easy to learn and the effect of mastering and increasing production and efficiency

Active Publication Date: 2015-12-23
INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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Problems solved by technology

However, the practical problem is that soil testing and laboratory analysis are time-consuming, labor-intensive, and require a certain amount of financial investment. Influenced by the limitations of the test method, the soil nutrient test value cannot fully reflect the soil nutrient supply status

Method used

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  • Optimized recommended fertilization method for soybeans
  • Optimized recommended fertilization method for soybeans
  • Optimized recommended fertilization method for soybeans

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Effect test

Embodiment 1

[0056] Embodiment 1 field verification test

[0057] The test was carried out at the soybean industry system test stations in Heilongjiang, Jilin and Liaoning from January to December 2014. The test sites were located in Heihe, Qiqihar, Jiusan, Hailun, Jiamusi, Suihua, Daqing, Changchun, Shenyang and Nenjiang test stations. Before soybean planting, the planting conditions of each experimental site were investigated to understand the fertilization and yield in previous years. According to the survey results, the target yield and soil nutrient supply level were determined, and the yield response and yield response were calculated through the optimized recommended fertilization method (NE). The amount of nitrogen, phosphorus and potassium fertilizers (see Table 3), and the local soil testing formula fertilization (OPTS) and farmers' practice (FP) treatments were set as controls. Among them, NE and OPTS 2 treatments are completed in the test station, and the area of ​​the plot is ...

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Abstract

The invention discloses an optimized recommended fertilization method for soybeans. The recommended fertilization method includes the steps of: 1) determining the target yield of soil according to previous soybean yield level of soil; 2) determining the soil nutrient supply grade, soybean fertilization yield response and agronomical efficiency; 3) combining the target yield, yield response, agronomical efficiency and soil nutrient supply grade to calculate the recommended fertilization amount of nitrogen, phosphorus and potassium needed by soybeans to achieve the target yield; and 4) conducting fertilization on soil according to the recommended fertilization amount. The method is based on soil basic nutrient supply, soybean nutrient demand, fertilizer yield response and agronomical efficiency, takes nutrient collaboratively optimized optimal nutrition management as the principle, simultaneously takes the balanced application of nutrients into account, performs analog calculation to give a reasonable recommended fertilization amount finally, and can be applied without soil testing conditions. The recommended fertilization method is not only suitable for the small farmer-oriented business model in China, but also can achieve the regional scale fertilizer recommendation, and is an important way to realize soybean production and efficiency increase and improvement of the comparative advantage.

Description

technical field [0001] The invention relates to a method for optimizing and recommending fertilization of soybeans, which belongs to the field of agricultural resources and environment. Background technique [0002] my country is the origin of soybeans, with a history of 5,000 years of soybean cultivation. Soybeans are rich in plant protein and are often used to make various soy foods, extract soybean oil, brew soy sauce and extract protein. Bean dregs or meal can also be used as livestock and poultry feed. It is one of the important grain and oil crops in my country. However, my country is a major importer of soybeans, especially after China's accession to WTO, my country's soybean production and trade have been severely impacted. The reason is mainly because my country's soybean production technology is relatively backward and the cost input is relatively high, resulting in a significant decline in its comparative advantage. [0003] Among them, a large amount of fertili...

Claims

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Application Information

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IPC IPC(8): A01C21/00
Inventor 何萍魏丹杨富强徐新朋王伟
Owner INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
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