Jiangyin Yuanfang Machinery Manufacture Co., Ltd , https://www.yuanfangmachine.com
The Weiyang gorge has a clayy soil with uneven distribution of rainfall. It often occurs in short-term droughts in summer and autumn, and has a great impact on the growth of cotton and dry grain crops. Using a rapid soil moisture analyzer, the soil moisture content of the main dryland of the Third Production Team of the Affiliated Brigade of the Gongpai Commune was measured. Based on the results of 2,925 tests, combined with the survey of 2,640 cottons, the loess soil mass and physical clay content were mostly about 60%; the structure was poor, the capillary evaporation effect was strong, and the soil moisture content was in summer and autumn. When the capillary ruptures above the water content, the O-30 cm soil layer loses 1,000 kg of water per mu per day. Poor water retention and water quality, coupled with uneven distribution of rainfall, occur several short-term droughts and autumn droughts each year. Therefore, we must carry out irrigation and drought, otherwise it will seriously hinder the growth and development of cotton and dry grains, resulting in reduced production. For example, the third and fourth production team of the Minamata Brigade had similar soil and fertility management levels. However, because the four teams caught the irrigation of the cotton fields better than the three teams in the past two years, the output of lint per mu was more than ten pounds more than the three teams.
From this, it can be seen that soil short-term deficiencies resulting from the analysis of soil moisture using instruments such as rapid soil moisture meters are representative. The more demanding the high yields, the more pronounced this short-term shortage will have on the crops. Therefore, in order to obtain grain and stable yield and high yield on the Yangyanggang land, it is necessary to develop irrigation and resist drought promptly.
Using a rapid soil moisture analyzer to analyze the relationship between soil moisture content and precipitation, it was found that although precipitation is an important factor affecting soil moisture, it is not unique. The same amount of precipitation, if the soil fertility is different, the soil management is different, the crop growth is different, the soil moisture content varies greatly, and the variation between the land masses is also great. Therefore, the amount of precipitation can only be used as a reference to determine the time of watering of grain and cotton. The time for watering concrete plots and specific crops should be determined according to the people's experience, observing the moisture content and the simple determination of soil moisture in order to achieve the purpose of timely drought and scientific water use.
The basis of crop growth is the fertility of the soil, and the basic elements of soil fertility are water, fertilizer, gas, and heat. Among them, water plays a dominant role in soil fertility. Therefore, soil moisture directly affects the growth of crops. As the most important water in the soil moisture content, its determination has a guiding significance for the growth and development of crops in agriculture. Soil moisture related measurement equipment can generally choose rapid soil moisture meter for determination.