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Rice field nutrient regulation and control method and device

A nutrient and paddy field technology, which is applied in the field of paddy field nutrient regulation methods and devices, can solve the problems that rice yield and environmental effects cannot be well taken into account, and achieve the effect of ensuring rice yield

Pending Publication Date: 2022-04-12
INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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Problems solved by technology

Therefore, fertilization also has a certain degree of blindness, and it cannot take into account the rice yield and environmental effects well.

Method used

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  • Rice field nutrient regulation and control method and device
  • Rice field nutrient regulation and control method and device
  • Rice field nutrient regulation and control method and device

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] figure 1 It is a schematic flow chart of the paddy field nutrient regulation method provided by the present invention. refer to figure 1 , the paddy field nutrient control method provided by the invention comprises:

[0037] S110. According to the nutrient concentration and irrigation water volume in the irrigation water of the previous growth stage of rice, determine the amount of ...

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Abstract

The invention provides a rice field nutrient regulation and control method and device. The method comprises the following steps: determining the nutrient amount brought by irrigation according to the nutrient concentration and irrigation water amount in irrigation water in the previous growth stage of rice, and determining the nutrient amount brought by rainfall according to the nutrient concentration and rainfall in rainwater in the previous growth stage of rice; according to the nutrient concentration and the displacement in the drained water of the previous growth stage of the rice, determining the nutrient content of the drained water belt, and according to the nutrient concentration and the leaching water volume of the leaching water of the previous growth stage of the rice, determining the nutrient content of the leaching belt; according to the amount of nutrient brought by irrigation, the amount of nutrient brought by rainfall, the amount of nutrient taken away by drainage and the amount of nutrient taken away by leaching, the fertilization amount of the current growth stage is determined on the basis of the nutrient demand of the current growth stage of rice. The rice field nutrient regulation and control method and the rice field nutrient regulation and control device provided by the invention can realize dynamic and accurate regulation and control of the rice fertilization amount.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilization, in particular to a paddy field nutrient regulation method and device. Background technique [0002] Rice plays an extremely important role in my country's food security. At the same time, rice is also a large consumer of fertilizer and water resources. The water consumption of rice accounts for about 60%-70% of the total agricultural water consumption, and the consumption of chemical fertilizers exceeds 20%. Due to the extensive water and fertilizer management in rice planting, there are common problems such as shallow application of fertilizers, excessive basal fertilizer and tillering fertilizer. The problem of non-point source pollution of nitrogen and phosphorus cannot be underestimated. [0003] Precisely controlling the amount of nitrogen and phosphorus fertilizers applied to rice and realizing on-demand fertilization is one of the key measures to prevent and control th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C21/00
Inventor 张富林刘申范先鹏刘宏斌张志毅夏颖刘冬碧倪承凡吴茂前熊桂云
Owner INST OF PLANT PROTECTION & SOIL FERTILIZER HUBEI ACAD OF AGRI SCI
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