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A method for fertilizing paddy field in soda saline-alkali land

A technology of soda saline-alkali land and saline-alkali land, applied in fertilization methods, fertilization devices, agriculture, etc., can solve problems such as unreasonable fertilizer application, fertilizer waste loss, and impact on rice production, so as to reduce the application of green fertilizer, reduce the cost of fertilizer, Good for absorption

Active Publication Date: 2019-11-08
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems of unreasonable application of chemical fertilizers in the production of rice in soda saline-alkali land, causing fertilizer waste and loss, affecting rice yield, and potential environmental pollution risks, and provides a method for field fertilization of rice in soda saline-alkali land

Method used

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  • A method for fertilizing paddy field in soda saline-alkali land
  • A method for fertilizing paddy field in soda saline-alkali land

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specific Embodiment approach 1

[0020] Specific embodiment one: the method for field fertilization of paddy rice in soda saline-alkali land of the present embodiment is specifically carried out according to the following steps:

[0021] 1. Determine the fertilization amount of rice field in saline-alkali land. According to the soil nutrient characteristics of soda saline-alkali land, the total application amount of nitrogen fertilizer is 150-180kg / ha, the total application amount of phosphorus fertilizer is 40-60kg / ha, and the total application amount of potassium fertilizer is 30-50kg / ha , Nitrogen fertilizer is divided into base fertilizer, tillering fertilizer and ear-grain fertilizer for three times, phosphorus fertilizer is applied as base fertilizer once, and potassium fertilizer is divided into base fertilizer and ear-grain fertilizer for two times;

[0022] 2. Determine the fertilization varieties of rice fields in saline-alkali land. According to the salinity characteristics of saline-alkali land, de...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment is different from Embodiment 1 in that: the total application rate of nitrogen fertilizer is 160-170 kg / ha. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the total application rate of phosphate fertilizer is 50kg / ha. Others are the same as in the first or second embodiment.

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Abstract

A soda saline-alkali soil paddy rice prime field fertilization method. The invention relates to a saline-alkali soil paddy rice prime field fertilization method and aims to solve the problems that in production of paddy rice in the soda saline-alkali soil in the prior art, application of chemical fertilizers is unreasonable, which may cause waste and loss of fertilizers and influence on yield of rice, and further may have potential environment pollution risk. The method herein includes the steps of: 1) determining the fertilization quantity of the saline-alkali soil paddy rice prime field, wherein a nitrogen fertilizer is applied in three times of base fertilizer, tillering fertilizer and ear granule fertilizer, a phosphorus fertilizer is applied as a base fertilizer in one time, and a potassium fertilizer is applied in two times of base fertilizer and ear granule fertilizer; 2) determining that the base fertilizer is a sulfur-based N-P-K ternary compound fertilizer or is a mixture by compounding elementary fertilizers, the tillering fertilizer is ammonium sulfate or urea, and the ear granule fertilizer is a nitrogen-potassium binary compound fertilizer or is a mixture of urea and potassium sulfate; and 3) determining the fertilization period of the saline-alkali soil paddy rice prime field. The method fully considers the nutrients in the saline-alkali soil, reduces loss of the base fertilizer and increases the utilization rate of the base fertilizer and the yield of the paddy rice. The method is applied in the field of paddy rice planting.

Description

technical field [0001] The invention relates to a method for fertilizing paddy field in saline-alkali land. Background technique [0002] With the implementation of the soda saline-alkali land development and rice planting project in the west of Songnen Plain, the area of ​​rice planting in saline-alkali land has gradually expanded. Currently, only the area of ​​rice in saline-alkali land in the west of Jilin Province has reached more than 4 million mu. However, the problem of high investment and low yield of rice planting in saline-alkali land has always plagued the development of local agriculture. The phenomenon of "big fat and big water" in traditional rice planting is still common, resulting in unreasonable output-to-input ratio, low economic benefits, and serious waste of resources. In particular, excessive and unreasonable use of chemical fertilizers brings potential pollution risks to the regional environment . Therefore, scientific and reasonable fertilization acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C21/00
CPCA01C21/007
Inventor 黄立华刘颖李洋洋梁正伟
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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