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Dedicated fertilizer for soybean and application

A special fertilizer and soybean technology, which is applied in the field of soybean fertilizer, can solve the problems of soybean yield and quality impact, and achieve the effects of preventing lodging and low temperature chilling damage, improving quality, and improving retrograde resistance

Inactive Publication Date: 2008-04-16
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, the current situation of soybean fertilization in the Lower Liaohe Plain is that no nitrogen and potassium fertilizers are applied, and only part of the phosphorus fertilizer is applied. As a result, the yield and quality of soybeans are affected

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  • Dedicated fertilizer for soybean and application

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Effect test

Embodiment

[0015] 1) Selection and ratio of a large number of elements:

[0016] The test results on the soil of the Lower Liaohe Plain show that soybean has its own distinct characteristics according to the needs of the three nutrient elements of NPK, and its response is more sensitive than grass crops. The test results show that the selection: N:P:K=1:0.71 ~0.97:0.91~1.23; best N:P 2 o 5 : K 2 O=1:2:1.3;

[0017] N per unit area: 33.5kg hm -2 ,P 2 o 5 : 67.5kg hm -2 , K 2 O: 45kg hm -2 ; That is, N is 33.5kg hm -2 , P is 29.6kg hm -2 , K is 37.4kg hm -2 ; According to the difference of the soil nutrient background of the cultivated land, the amount of fertilizer can fluctuate in the range of ±15%.

[0018] 2) Selection of trace elements

[0019] According to the physiological characteristics of soybean and the special structure of symbiotic nitrogen fixation, the role of trace elements Zn and Mo cannot be ignored. Zn is conducive to the migration and accumulation of N and...

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Abstract

This invention involves a fertilizer for soybeans, particularly a special fertilizer for soybeans growing in the soils of lower Liaohe Plain and its applications. The said fertilizer is a mixture of nitrogen fertilizer, potassium fertilizer and phosphate fertilizer, with the ratio of N:P:K in the range of 1:0.71-0.97:0.91-1.23. The amount of the special fertilizer applied to soybeans is: 27.5-38.5kg hm-2 of N, 25.1-34.1 kg hm-2 of P, 32.2-42.6 kg hm-2 of K, 5.1-6.9 kg hm-2 of Zn, and 1.27-1.73 kg hm-2 of Mo. This invention ensures an adequate nutrition supply to the growth of soybeans, and can obtain high-yield, high-quality soybeans.

Description

technical field [0001] The invention relates to a fertilizer for soybeans, in particular to a special fertilizer for soybeans applied on the soil of the Lower Liaohe Plain and its application. Background technique [0002] Soybean is a leguminous crop that symbiotically fixes nitrogen. Most of the N needed during the growth period depends on the nitrogen fixation mechanism of the symbiotic soybean rhizobia to meet its nitrogen supply. Soybean is extremely sensitive to phosphorus. After phosphorus application, it will Significantly improve its yield and quality. When the supply of N and P is satisfied, K will become an important limiting factor for yield during the restriction period. These conclusions have been confirmed by our long-term positioning test results, soybean production practice and other related tests . [0003] Because soybeans have their own nitrogen fixation, soybeans are traditionally not fertilized with nitrogen. In the Lower Liaohe Plain and even in Nort...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00
Inventor 宇万太殷秀岩张璐马强赵少年
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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