Wheat water-saving cultivation method

Abstract

The invention discloses a wheat water-saving cultivation method. The method includes the following steps that 1, moisture in soil is formed, wherein irrigation moisture-in-soil forming is conducted before soil preparation, and the relative water content of the soil of field pieces reaches 70% to 80%; 2, rectangular pieces are arranged in the field pieces, the length of the rectangular pieces is 7.5-10 m, the face width of the rectangular pieces is 4.6-4.8 m, and the ridge width of the rectangular pieces is 35-40 cm; 3, wheat is planted in the rectangular pieces, the sowing time of the wheat is seventh to sixteenth in October every year, and the sowing quantity is 11-14 kg per mu; 4, the wheat is not irrigated in winter after being planted, and when internodes of base parts of the wheat are elongated by 1-2 cm in spring next year, flood irrigation in the rectangular pieces is conducted, and the irrigation volume is 50-60 m<3> per mu; when the relative water content of the soil in the flowering period of the wheat is lower than 65%, flood irrigation in the rectangular pieces is conducted, and the irrigation volume is 40-50 m<3> per mu; 5, the wheat is harvested 235-244 days after being planted. According to the method, the water utilization efficiency of the wheat can be improved, the yield is not reduced or the yield is slightly increased, and water saving, high yield and high efficiency are achieved.

Description

technical field [0001] The invention belongs to the technical field of wheat cultivation, and in particular relates to a water-saving cultivation method for wheat. Background technique [0002] The Huanghuaihai region is the main wheat producing area in China, with a wheat planting area of ​​over 200 million mu and a total output of over 100 million tons. The annual precipitation in most parts of the region is 500mm-700mm, and it is mainly concentrated in summer. During the wheat growth period, the precipitation cannot meet the needs of wheat growth and development. Only through supplementary irrigation can high and stable yields be achieved. [0003] At present, the current irrigation system in this area is usually based on the premise of meeting the water demand of wheat in each growth period. Therefore, it is often seen in production that many times a large amount of water is irrigated during the wheat growth period. Moreover, the water use efficiency is low, which has c...

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Problems solved by technology

[0003] At present, the current irrigation system in this area is usually based on the premise of meeting the water demand of wheat in each growth period. Therefore, it is often seen in production that many times a large amount of water is irrigated during the wheat growth period. Moreover, the water use efficiency is low, which has caused serious ecological problems; in addition, the number of irrigations is high, the amount of irrigation water is large, and the soil water is not fully utilized, which leads to runoff of rainwater in summer and leakage to the ground, resulting in waste of water resources and at the same time causing The leaching of soil nitrate nitrogen pollutes groundwater and the environment; moreover, repeated irrigation increases costs and directly affects farmers and agricultural economic benefits

[0004] Spring wheat fertilizer and water management is an important link for high and stable yields. In current wheat production, many farmers do not take wheat growth characteristics and population quality as the basis. Many farmers take the Spring Festival as the time node and are eager to go out to work, resulting in premature spring irrigation and increased Population in spring, increasing the risk of late lodging, and wasting water

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