Rice water and fertilizer utilization and evaluation method and rice growth development and soil nutrient regulation and control method

Abstract

The invention relates to an evaluation method for water and fertilizer utilization conditions of Quanliangyou rice and a regulation and control method for growth and development characters and soil nutrient shapes of the Quanliangyou rice. The evaluation method comprises the following steps: selecting a test field, and collecting meteorological data of a rice growth period in a conventional hydrological year in an area where the test field is located; according to the meteorological data, performing a two-factor split area design test in the test field, and planting the Quanliangyou rice, wherein the two factors are water dosage and nitrogen fertilizer dosage; and collecting plant samples and soil samples in the test process, testing and analyzing the growth and development properties of the plant samples and soil nutrient conditions, and determining the optimal water consumption and nitrogen fertilizer consumption. By means of the method, a proper amount of water and fertilizer increasing amount can be found, the positive promoting effect on growth and development of rice plants is achieved, and the high grain yield is obtained.

Description

technical field [0001] The invention relates to the technical field of rice growth, in particular to a rice water and fertilizer utilization evaluation method and a growth and development and soil nutrient regulation method. Background technique [0002] For the growth and development of rice, it is affected by various environmental factors during the growth period, and its water and fertilizer are the most sensitive and demanding fertility factors affecting rice development. Therefore, rice has a high demand for water and nitrogen fertilizer. In addition, water and nitrogen fertilizer are It is an important measure to regulate the growth of rice, which can artificially control the regulatory factors to the greatest extent. Therefore, reasonable water and fertilizer management is an important measure to obtain high rice yield. [0003] However, due to factors such as manpower and funds, the number of irrigation methods and nitrogen fertilizer levels in different experiments...

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Problems solved by technology

[0003] However, due to factors such as manpower and funds, the number of irrigation methods and nitrogen fertilizer levels in different experiments is generally small, and it is difficult to reflect the changes in yield and other indicators with water and nitrogen fertilizer. Comparability, etc.; secondly, it is difficult to accurately quantify water control indicators in different control irrigation methods, and the differences in hydrometeorological conditions in different regions make field test results only applicable to specific climate environments. Therefore, water control in water-saving cultivation of rice still mainly depends on local Farmer's Experience Control

Moreover, it is not known whether these irrigation conditions, nitrogen fertilizer application and soil nutrients are related, which also leads to unavoidable difficulties in finding evaluation methods suitable for rice water and fertilizer use under different climatic conditions

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