How to manage the rainy season of sweet pepper well

High temperature and heavy rainfall in summer are not conducive to the growth and development of sweet pepper, which often leads to nutritional imbalance of sweet pepper plants, slow growth, yellowing and falling of leaves, flower and fruit dropping, easy occurrence and epidemic of diseases, resulting in yield reduction or even harvest failure, and the quality of sweet pepper is reduced. However, August to September is the off-season of sweet pepper supply, the price is high, the sales are fast, and the economic benefit is high. If the cultivation management of sweet pepper in this period is strengthened, the soil condition is improved, the plant resistance is enhanced, the resting degree of sweet pepper can be alleviated, and the normal growth and development of sweet pepper can be achieved. You can start with the following:

sweet pepper

Heavy fertilizer application: before the rainy season, heavy fertilizer should be applied once, 25-30 kg diammonium sulfate or 15-20 kg urea should be applied per mu of sweet pepper to prevent fertilizer removal in rainy season, and 5 kg urea should be applied per mu after each heavy rain. When topdressing, chemical fertilizer should be evenly sprinkled on the surface of the field, and should not be sprinkled on the leaves of sweet pepper to prevent fertilizer damage.

Timely watering: should be watered in the early morning, at this time the ground temperature, temperature, water temperature are low, not easy to cause damage to sweet pepper plants, do not water around noon. The weather is sultry, after rainfall, implement waterlogging irrigation garden, that is, immediately after the rain stops, shallow irrigation with well water, rapid irrigation, and irrigation with drainage, to prevent root injury and sultry cause sweet pepper leaves to fall off. After continuous rain, sunny days, should be watered twice every other day in order to reduce the ground temperature, root protection disease prevention. Watering should pay attention to the weather, long drought without rain, timely watering, strive to avoid rainfall, in case of sweet pepper root suffocation and induced disease.

Timely drainage: after rainfall, timely drainage, waterlogging prevention, so that rain and water supply net, land preparation, made of small high ridge or high ridge, plastic film coverage, in order to facilitate irrigation. If the humidity is too high, hoe in time to increase soil permeability, prevent ponding, soil hypoxia, resulting in yellow pepper leaves, leaves, roots, disease epidemic.

Cultivate weeding: weeds grow vigorously in rainy season should be shallow hoe or artificial weeding, in order to prevent damage to the root system of sweet pepper, affecting absorption capacity, causing disease infection.

Root topdressing: can be repeated with 0.2% potassium dihydrogen phosphate, 0.1% urea and 0.2% zinc sulfate mixture foliar spray, not only can supplement nutrition, but also can reduce the temperature of sweet pepper plants, accelerate photosynthesis, promote fruit setting.

Dealing with hail disaster: after encountering hail, the injured branches and leaves and fruits should be removed in time to reduce nutrient consumption, promote the growth of new branches, and timely spray and topdressing.

Prevention and control of diseases and insect pests: high temperature rainy season, soil and air humidity, easy to lead to diseases such as epidemic diseases, anthrax and other epidemic. The key to preventing and controlling epidemic diseases is to prevent waterlogging. When diseased plants are found, they should be sprayed with Anke ~ Mangzinc, Redomil, Kedu, Sanfu alum, Metalaxyl and other chemicals in time. The diseases caused by bacteria include scab, bacterial wilt and soft rot, which are generally controlled by spraying agricultural streptomycin or neophytin or DT fungicides. The key to control virus disease of sweet pepper is to control aphids well. When diseased plants appear, virus A is sprayed and appropriate foliar fertilizer is sprayed at the same time.