Using Soil Moisture Tester for Cotton Field Irrigation Management

Cotton is widely grown in Xinjiang in China, and cotton production depends to a large extent on the quality of irrigation. Therefore, using a soil moisture tester to regularly measure soil moisture in cotton fields, and crop irrigation management can not only meet the water demand of cotton, but also save water. The effect of increasing production is also very significant.
Long-term production experience tells us that the requirements of cotton crops for soil moisture are very high, ensuring that cotton growth is always in the best state of soil water supply and reaching the highest yield, which is the current goal of cotton cultivation, and in order to achieve this goal, it needs to be achieved. Achieve planned irrigation. The use of soil moisture tester to accurately determine the soil moisture in cotton fields can scientifically guide the irrigation of cotton fields. In particular, it can analyze and find out the time and amount of irrigation needed in cotton fields, so as to implement timely irrigation and guarantee the yield and quality of cotton.
Using the soil moisture tester to determine the process, you need to help determine two points. The first is to determine the best irrigation time, because the determination of the optimal irrigation time is the most critical factor for scientific irrigation. The soil moisture tester works on this work. The role is to find a compensation point so that whenever the cotton field moisture reaches the compensation point, an irrigation is applied to the cotton field to ensure that the cotton is in the transpiration and photosynthesis maximum during the entire growth period. The other is the need to determine the amount of irrigation. Irrigation is determined by irrigation until the soil's root water content reaches the saturation point. The saturation point is generally equal to the field water holding rate. Too much or too little irrigation is not conducive to the growth of cotton crops. When the soil water content reaches the saturation point, all the water irrigated will supply the transpiration needed for the growth of the cotton. After that, it will cause the waste of water resources, and it will not be able to meet the growth needs of the cotton crop. Therefore, the soil moisture is used. It is also very important for testers to determine the amount of irrigation.
The saturation point and compensation point of the cotton field determined by the soil moisture tester are very important for determining the optimal irrigation time and the appropriate amount of irrigation. It is the key to planning irrigation, and is also the basis for scientific irrigation management of cotton fields.

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