Winter plowing control pests

Poyang County, Jiangsu Province has a large variety of crops and a variety of insect pests. In winter, insects, red spiders, aphids, and some underground pests live in winter. Plowing the soil in winter will inflict pests and insects on insect pests and insects. Eggs exposed to the air and frozen to death can be used without pesticides, and effectively reduce the base number of pests in the following year. It is a good method to control pests without pollution. The technique is briefly described below. The wintering areas of cotton bollworms are mainly wintering in cotton fields and wintering in drylands. Rice locusts, such as rice stem borer and rice borer borer, winterize in rice roots, locusts, spider mites, eggs in winter fields, and grass Winter in the middle. Therefore, winter plowing and disinfestation must be carried out within a relatively large range. The best way is to have free cotton fields, cotton fields, reserve fields, rice seedling fields, and wheat fields within the range of several villages and one township or town. Reserve fields, orchards, and other fields are all ploughed to destroy various wintering sites for insects, adults, and eggs. Winter plowing time Winter plowing action is to destroy the living environment in various insect pests. Some insect pests of various kinds are turned into deep layers of the soil to make them unable to survive, live and suffocate, or turn to the surface to use the cold. Cry to death or freeze to death. Therefore, the earlier winter plowing and the more cold weather conditions, the higher the mortality rate of pests in various forms of pupae is, because the temperature during winter plowing is low and the air is dry, various insect pests will be deprived of water or frozen. Death occurs at the lowest temperature from the end of December to the beginning of February in the second year of each year. It is a period of great threat to various insect pests and has a good pest control effect. Winter plowing method Winter plowing, the depth should be more than 10 cm, the deeper the winter plowing, the better the pest control effect, but it can not be overturned too deep, otherwise it is easy to lose water running, winter plowing rough first time, then fine Shredding to conserve water and increase soil water holding capacity; conditional ploughing can be repeated 2-3 times, ploughing once every 12-15 days, and also killing more winters during cultivation. Pests, pest control effect is better. After irrigation in the cold winter, the pests are more tolerant to drought than wet and tolerant to cold. According to relevant research, when the relative water holding capacity of the soil is 40%, the mortality rate of insect pests in various forms is 36.6%. When the amount of water is saturated, the mortality rate of pests in various insect states is more than 80%, and some of them can reach 100%, such as cotton bollworms, cabbage caterpillars, etc., so that there are places where irrigation conditions exist. Winter ploughing followed by winter or spring irrigation can significantly increase the mortality of overwintering pests in the soil.

Hospital Bed

Hospital Bed, also known as hospital bed, Hospital Equipment, Nursing Bed, etc., is a hospital bed used by patients when they are hospitalized in the hospital.

There are many classifications of medical beds, and the specific classification methods are as follows: According to the material, it can be divided into ABS medical beds, all stainless steel medical beds, semi-stainless steel medical beds, all steel sprayed medical beds, etc.

According to the function, it can be divided into electric medical beds and manual medical beds. Among them, electric medical beds can be divided into five-function electric medical beds and three-function electric medical beds. Manual medical beds can be divided into double-shake medical beds and single-shake medical beds. Medical beds, flat medical beds.

According to whether it can be moved, it can be divided into a wheeled medical bed and a right-angle medical bed. Among them, electric medical beds are generally movable with wheels.

In addition, there are other special function beds, such as: ultra-low three-function electric bed, Hospital Bed For Home, hospital bed with bedpan, scald rollover bed, rescue bed, mother-child bed, crib, child bed, ICU monitoring bed, examination bed, etc.

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