Watermelon field improves economic efficiency
Watermelon is sensitive to soil acidity. When soil pH is lower than 5.5, more organic fertilizer or lime should be used to improve or plant acid-resistant watermelon varieties. In the province, watermelons in the open country have been gradually transplanted and transplanted. Attention is paid to the improvement of the soil, which can increase economic efficiency.
The first is to disinfect the soil. 3 to 5 grams of dicamba per square meter or 100 kilograms of lime used to disinfect (the above two methods are plowed after sowing, so that the soil is mixed, lime can not be used for years). Insect pests can be used for spotted nests with soil insecticides or field pesticides.
The second is the re-application of base fertilizer. The base fertilizer can be selected from the following formulas: 3,000 kg of farmyard fertilizer, 100 kg of phosphate fertilizer, 40 kg of potassium sulfate, or 3,000 kg of chicken and duck dung (after fermentation of fresh manure), 50 kg of phosphate fertilizer, and 30 kg of potassium sulfate.
The third is the field car. The fertilizer was evenly mixed in the soil, and the hatching was performed at 2.5 to 3.5 meters. If the intercropping is carried out, the melon road will be 1.3 meters long and the remaining 1.3 meters of Other vegetables will be reduced by half the amount of watermelon melon base fertilizer. If there is no potassium sulphate fertilizer, 10 kg of potassium dihydrogen phosphate per mu can be used instead. The effect is better. The good melon road before planting and turning evenly before the whole set of fine, good car, ditch more than 20 cm deep, do a good ditch (ditch should be 30 cm, to stop the water over the rain, ditch can be dry).
The fourth is weeding with chemical agents. The watermelon field has a large area and manual weeding is very troublesome. Tests showed that the soil was spray-sealed before coating, and the following herbicides had better effects: trifluralin, dole (for grasses, purslane), diternamidine (for flavonoids), and alachlor (for glucosinolates). Bachelor and sedge).
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