The soybean cyst nematode is parasitized in the cortex of the root and absorbs the organic nutrients that the plants on the ground transport to the roots, so that the soybean root loses its ability to absorb water and inorganic salts, which in turn reduces the ability of the root to absorb and the ground part is not sufficient. The water and inorganic salts do not work well for photosynthesis and cannot synthesize organics for the growth of roots, stems and leaves. Thus affecting the growth and development of soybeans. The following methods can be used to control:
1. The area where the soybean cyst nematode is severe should be considered from a long-term perspective, and should be fundamentally solved by adopting a rotation method with cereal crops for more than 3 years.
2, increase manure, strengthen the management of farmland. Take measures such as deep tumbling of front rake, deep ploughing of middle cultivator, strengthening of shoveling rake and manure application, etc. to increase soil permeability and temperature increasing performance and nutrient content. Promote soybean root growth and reduce soybean cyst nematode damage to soybeans.
3. For the severe land of soybean cyst nematode, it is best to use 5% carbofuran granules to grow seed fertilizer, and the dosage is 1 kg/667 square meters, which can achieve good control effect. Soybean seed coating agent can also be used. 1% of the seed amount is used for seed dressing.
4. For the plots without seed dressing and fertilizer control, in the middle and late June, when the yellow symptoms of soybean leaves appear, use the systemic fungicide, such as omethoate, soybean seed coating agent, etc. . The specific approach is: Apply 40% omethoate 100-150 ml or soybean seed coating 80-100 ml to water 16 kg, spray directly on the affected plants.
1. The area where the soybean cyst nematode is severe should be considered from a long-term perspective, and should be fundamentally solved by adopting a rotation method with cereal crops for more than 3 years.
2, increase manure, strengthen the management of farmland. Take measures such as deep tumbling of front rake, deep ploughing of middle cultivator, strengthening of shoveling rake and manure application, etc. to increase soil permeability and temperature increasing performance and nutrient content. Promote soybean root growth and reduce soybean cyst nematode damage to soybeans.
3. For the severe land of soybean cyst nematode, it is best to use 5% carbofuran granules to grow seed fertilizer, and the dosage is 1 kg/667 square meters, which can achieve good control effect. Soybean seed coating agent can also be used. 1% of the seed amount is used for seed dressing.
4. For the plots without seed dressing and fertilizer control, in the middle and late June, when the yellow symptoms of soybean leaves appear, use the systemic fungicide, such as omethoate, soybean seed coating agent, etc. . The specific approach is: Apply 40% omethoate 100-150 ml or soybean seed coating 80-100 ml to water 16 kg, spray directly on the affected plants.
This obstetric examination bed is suitable for obstetrics and gynecology for parturition;
also suit for after the birth of observation and implementation of gynecological examination, diagnosis and operation;
The exam table is easy to operation, table up and down by electric control, back plate controlled by gas spring;
Obstetric Examination Table,Gynecology Examination Table,Obstetric Exam Table,Ce Approved Obstetric Examination Table
Shandong Lewin Medical Equipment Co., Ltd. , https://www.operatinglight.nl