The eggplant of Yan Master at Wangfu Village, Jitai Township, Shouguang City, Shandong Province, is always growing poorly in spring. Yellow leaves, eggplant epidermis purple, sepals yellow-green, showed severe de-fertilization symptoms. However, Master Yan said that the amount of fertilizer he applied was not small. In order to solve the problem, Master Yan took soil samples from the shed to the Shouguang Soil and Fertilizer Testing and Research Center for soil testing. The crux of the original problem was that organic fertilizer was applied less. At that time Yan Master had some unreasonable thoughts: I used rice husk manure per mu and chicken manure between 15-20 square meters. Should I say it is quite a lot? This is also the case, 15-20 square meters of organic fertilizer per acre base, for Shouguang general soil is more appropriate. However, the soil in Yan’s master shed is a typical sandy soil, because the soil gap between the sand is large and the water retention and fertility are poor. Especially during the peak season of eggplant, many fertilizers used are lost with water, resulting in insufficient nutrition. The growth of eggplant is supplied, resulting in de-fertilization. For this kind of situation, Master Yan can change the phenomena of leakage of water in sand and leakage of fat in eggplant at later stages through the following two methods. First, increase the use of organic fertilizers. According to the test results, the amount of hydrolyzable nitrogen in Yan’s master soil was 122.24 mg/kg, the content of available phosphorus was 215.87 mg/kg, the content of available potassium in soil was 369.80 mg/kg, and the total salt and PH values ​​were suitable. However, the content of organic matter in soil is only 18.74g/kg, which is less than the requirement of 20.00g/kg of organic matter in soil. Therefore, Yan Yan should increase the organic matter in the soil by increasing the use of chicken manure or rice husk manure and other base fertilizers to enhance the effect of water conservation and fertilizer. Secondly, the application of biological bacterial fertilizer can increase the organic matter of the soil and increase the water retention and fertility of the soil around the root system. Such as acupuncture points, sources, dead trees, anti-bacterial -968 and so on. Again, watering should be changed from flooding to micro-irrigation or drip irrigation, dissolving fertilizers into water, and improving the utilization of fertilizers by means of water pouring in small waters. In doing so, the damage can be reduced to benefit, and the characteristics of the soil between the sand and soil particles can be used to promote the growth of the root system. The water can be concentrated and supplied to the roots of the vegetables, and the loss of water and fertilizer can be reduced, and the investment can be reduced. Vegetable production.
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