Solar greenhouse cucumbers generally adopt high and low ridge cultivation. Highly mulched mulch, with an empty back of about 25 cm in the middle of two high ridges as a sidewalk for field management and picking cucumbers. According to experiments, grass cultivation on the empty back is an effective and practical technique for achieving high quality and high yield of cucumber. The benefits are: First, improve soil fertility. According to the measurement, 750 kilograms of grass are planted in acres, and nutrients provided after maturity are equivalent to 18.75 kilograms of ammonium sulfate, 6.25 kilograms of superphosphate, 3.75 kilograms of potassium sulfate, and can inhibit the growth of weeds. Second, increase the temperature. After grass is planted in the air, it can prevent heat from spreading at night, absorb certain heat during the day, and add heat during the decay of weeds, which can significantly increase the indoor temperature. Third, prevent soil compaction. Field management and picking of cucumbers often require walking on empty backs, resulting in soil compaction. Since the soil permeability after being planted is in good condition for a long period of time, it provides favorable conditions for the root system to extend to the surface and expand the scope of water and fertilizer absorption. Fourth, reduce the disease. Water and humidity in the greenhouse are one of the important conditions that induce cucumber downy mildew. After empty back-sowing, the evaporation of surface moisture is reduced, and indoor humidity is effectively controlled, so that the occurrence and damage of downy mildew and other diseases can be mitigated to some extent. Fifth, provincial workers and provincial water. According to the survey, cultivation of cucumbers in winter and spring, from picking the first melon to bran, after planting grass can generally reduce watering 5-8 times, acres of water conservation of 200 cubic meters, saving about 12 labor. The specific practice of grass cultivation: weed a variety of weeds, wheat straw, corn stalks, rice straw, etc. into small sections of about 10 cm. Before the cucumbers are shed, if the seedlings are not too high, choose sunny days between 2:00 and 14:00. On empty back, the thickness is generally about 5 cm. China Agricultural Network Editor
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