Summer vegetable field management technical measures
1. Watering: It can not only meet the growth needs of vegetables, but also have the effect of cooling and heat resistance. Watering time should be selected in the morning or evening, watered with well water or low temperature river water, should be poured thoroughly to keep the soil moist; water should be drained in time to prevent hot rain damage.
2, fertilization: on the basis of the application of the base fertilizer, and then according to the types of vegetables, varieties and different growth period needs to apply fertilizer, nitrogen, phosphorus, potassium should be applied. For example, the nitrogen fertilizer is the main seedling stage, supplemented by phosphorus and potassium fertilizer; the phosphorus and potassium fertilizers are the main stage, and the nitrogen fertilizer is supplemented. In the seedling stage, the initial stage of the results and the peak of the results, each fertilizer should be applied once; when the leaves are yellow and weak, the leaves can be sprayed with potassium dihydrogen phosphate or sprayed with Shibao to prevent premature senescence of the leaves.
3, cultivating weeding: easy to produce weeds in summer, need timely cultivating and weeding, in order to prevent weeds and vegetables contend for light or cause pests and diseases. Cultivating can both weed and protect the roots and promote root development.
4, prevention and control of pests and diseases: the spread of pests and diseases in summer, strengthen the prevention and control of pests and diseases, is the guarantee of stable production of vegetables. Prevention and control of pests and diseases should be based on prevention and prevention. For diseases caused by fungi, such as melon downy mildew, powdery mildew, blight, etc., fungal-killing agents or broad-spectrum bactericidal pesticides, such as ethylene-phosphorus-aluminum, mancozeb, etc.; Diseases caused by bacteria such as soft rot disease, melon bacterial leaf spot disease, Solanaceae bacterial wilt, etc., used to kill bacterial fungicides, such as agricultural anti-120, carbendazim, etc.; Pesticide control, insect killing, quick killing and killing pesticides, and using avermectin and BT biological agents to control pests, the effect is also very good. Sprayed vegetables should be listed after the safety interval to avoid affecting human health.
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