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A kind of crop phosphate fertilizer application method that improves phosphate fertilizer utilization rate

A crop and utilization technology, applied in fertilization methods, applications, agriculture, etc., can solve problems such as undiscovered, and achieve the effect of improving the utilization rate of the season

Inactive Publication Date: 2016-09-14
何文
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  • Claims
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Problems solved by technology

Relevant literatures at home and abroad have been searched: no report with the same content as "a technique for applying phosphorus fertilizer to crops to improve the utilization rate of phosphorus fertilizer" was found

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  • A kind of crop phosphate fertilizer application method that improves phosphate fertilizer utilization rate
  • A kind of crop phosphate fertilizer application method that improves phosphate fertilizer utilization rate

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Embodiment Construction

[0009] From 2006 to 2013, 78,862 soil samples were tested and analyzed. The average value of soil available phosphorus was 18.1mg / kg. Compared with 1982, the average value of soil available phosphorus rose from 8.4mg / kg to the current 18.1mg / kg. The value increased by 9.7mg / kg, and the increase rate reached 114.5%. In the past 30 years, with the substantial increase in the amount of chemical fertilizers, the available phosphorus in the soil has increased by nearly 100%, and the exogenous phosphorus applied to the soil has made a huge contribution to the level of soil fertilizer supply. See Table 1 for the comparison of changes in soil available phosphorus at intervals of 30 years

[0010] Table 1 Comparison statistics of changes in soil available phosphorus at intervals of 30 years

[0011]

[0012] From 2006 to 2013, 3414 fertilizer efficiency tests were carried out in 13959 plots for rice, wheat, corn, rape, potato and other crops. According to the 0-level yield of phos...

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Abstract

The invention discloses a crop phosphate fertilizer application technology for improving phosphate fertilizer utilization rate, belongs to the field of agricultural fertilizer application, and specifically relates to the crop phosphate fertilizer application technology for improving phosphate fertilizer in-season utilization rate. The crop phosphate fertilizer application technology is characterized in that, soil available phosphorus is fully used, maintenance time of high concentration available phosphorus can be reduced, fixation is reduced, the loss is reduced, maximum supply in fertilizer required period is ensured, and the in-season utilization rate is improved. In middle and high fertility farmlands, especially in farmlands with the soil available phosphorus being more than 30mg / kg, a phosphate fertilizer is not applied in seedling stage, seedlings are only allowed to absorb soil available phosphorus, 30 to 150 kg per hectare of phosphate fertilizer (P2O5) is applied in early flower bud differentiation stage, and the theoretical concentration of the available phosphorus in a plough layer can be improved by 80-300% compared with original initial concentration. In middle and low fertility farmlands, especially in farmlands with the soil available phosphorus being lower than 10mg / kg, the phosphate fertilizer is applied in two times; 15-75 kg per hectare of base fertilizer (P2O5) is applied, 15-75 kg of the fertilizer (P2O5) is applied in early flower bud differentiation stage, and the theoretical concentration of the available phosphorus in the plough layer soil can be improved by 80-300% compared with the original initial concentration in the two times of fertilizer application.

Description

technical field [0001] The invention belongs to the field of agricultural fertilization, and the patent code is A01C. It specifically relates to the technology of improving the utilization rate of phosphorus fertilizer in the season of phosphorus fertilizer fertilization of crops. Background technique [0002] Phosphorus is one of the three major nutritional elements necessary for plant growth and development. It participates in the composition of many important organic compounds in plants, energy metabolism, photosynthesis, respiration, redox reaction, signal transduction, and carbon and nitrogen metabolism. It plays a role in promoting plant growth and development. Important role The natural source in the soil mainly comes from rock weathering, which can be absorbed and utilized by plants is the monophosphate ion available phosphorus. The application of phosphorus fertilizer in the form of exogenous phosphorus can increase the content of soil available phosphorus, but afte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00
Inventor 何文
Owner 何文
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