1. Pay attention to ditch cleaning and drainage. After the rainy weather, you should go to the rape field to check and find that the drainage ditch is blocked or the drainage is not smooth. You should clear the ditch or increase the drainage ditch at any time. When the weather turns fine, cultivate the soil in time to reduce soil moisture and field moisture, improve soil aeration, and promote root development.
2. Scientific top-dressing of the injured rape field. After rape is affected by waterlogging, the fertility absorption of the root system is significantly reduced, the growth is poor, the plant is weak, the leaves are few and small, the root system is few and short, bolting is few and fine, and more quick-acting fertilizer should be properly applied to promote growth. The top dressing should be flexibly determined according to the growth of the rape population, each furrow application of 5-7 kg of urea and 2-3 kg of potassium chloride per mu, while spraying 0.2%-0.3% potassium dihydrogen phosphate solution on the leaves; when budding and flowering , And then spraying 0.1%-0.2% borax solution 1-2 times per mu of foliar surface can increase the seed setting rate and thousand-grain weight, and greatly increase the yield.
3. Prevent lodging. For rapeseed with wet damage, the root system is damaged, and the plant is slender and weak. It is necessary to cultivate more soil and protect it in a timely manner to prevent lodging. After the beginning of spring, there are prosperous fields, and it is necessary to spray the growth control agent at the right time to facilitate bolting thick and thick leaves, green leaves, 15% paclobutrazol wettable powder can be sprayed 45-50 grams per acre, which has a good lodging prevention effect.
4. Strengthen the prevention and control of pests and diseases. After the occurrence of flooding, the disease resistance of oilseed rape will decrease, and the occurrence of diseases and insect pests tends to be more serious, so it should be prevented and treated early. When sclerotinia sclerotiorum disease occurs, spray Sclerotium, vinyl sclerotium, etc. at the initial stage of the disease; when viral disease occurs, spray amino, oligoprotein, lentinan, etc., at the initial stage of the disease; when downy mildew occurs, it can be sprayed at the initial stage of the disease. Spray chlorothalonil, cymoxanil·manganese zinc, etc. When aphids occur, pymetrozine, acetamiprid, etc. can be used for control during the nymph stage; when cabbage worms occur, abamectin, emamectin, indoxacarb, etc. can be used for control.
5. Other measures to effectively reduce the occurrence of water damage. Choose high terrain, low groundwater level, convenient irrigation and drainage, loose soil and deep plots to grow rapeseed; choose rapeseed varieties that are resistant (tolerant) to moisture; to complete the "three ditch" matching, the ditch depth reaches about 25cm, and the width of the compartment is about 25cm. 1.5-2m is appropriate, which is beneficial to reduce the occurrence of autumn and spring stains.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
We are the supplier of high quality 100% recycled fabric Change Robe, waterproof change robe, long sleeve Adult Change Robe. Warm Change robe.
Waterproof Dry robe features:
1. 100% waterproof
2. High quality 100% recycled nylon fabric
3. big change space
4. YKK Zip
Sample with customized design and logo are available.
Welcome to discuss the details.
Waterproof Change Robe,Waterproof Change Robe,Surfing Change Robe,Swimming Change Robe
Suzhou Golden Gamrnet MFG Co.,Ltd , https://www.suzhoumfg.com