Affected by the climate, the unbalanced growth of rapeseed in our province is quite outstanding this year. In some places, the standard of ditch is not high, the waterlogged fields and grassland are heavy and the proportion of weak seedlings is high, and the pressure to strengthen field management and promote weak and strong growth is greater. In view of the current production situation, the following comments are made on the field management of rape in winter and spring.
First, drain ditch, anti-soil weeding.
From late October to mid-November, most of our province had more rain, relatively high humidity in the fields, and some rice fields were seriously polluted. All localities should seize the fine weather and guide farmers to clear the gutters in time to realize the smooth flow of the ditch, gutters and gutters, so that the water can be drained and the dark water can be filtered to promote healthy root growth. Serious grassy plots should be combined with trenches, sprayed and weeded to prevent grass seedlings.
Second, promote and control both, supplement the fat seedlings.
The proportion of rapeseed direct seeding is high this year. The rape planted after October 20th experienced a long period of low-temperature and rainy weather from the end of October to mid-November. The emergence was slow and the growth was weak. Some fields currently have only 1-2 leaves. , Frost resistance is weak. Should pay close attention to raise the seedlings, generally 5-7 kilograms of Mushi compound fertilizer, raised seedlings antifreeze. Early sowing and early planting, rapeseed field growing more prosperous to prevent defermentation, can apply 5-7 kilograms of urea as wax fertilizer.
Third, anti-freeze, a promotion of four defenses.
At present, it is necessary to rush to dry dew on the sunny days, spraying paclobutrazol, Bi-care and other plant growth regulators to increase frost resistance. Where conditions permit, measures such as adding organic fertilizer, straw mulching, ridge raising and doubling, removing freeze-leaf leaf moss, etc. may be adopted. Do a good job in preparations for the "one promotion and four defenses" in late February and early March. Spray 60 ml of new American stars in the Lei moss period and 30 ml per mu during the flowering period to prevent disease and increase yield. At present, the incidence of clubroot disease in a few fields is high in some regions, and local governments must attach great importance to it and strengthen prevention.
Fourth, increase the demonstration of spring rapeseed rapeseed.
In early February (between the beginning of spring and rain), spring sowing of rapeseed oil can play the role of “small fertilizer for big fertilizer, organic for inorganicâ€. For the winter and field plots, no-tillage and weed control can be applied after applying 20 kg of compound fertilizer and 5 kg of urea to sow 1 kg of rapeseed commodity rapeseed as green manure, which is generally plowed in mid-April and can harvest 1,000 kg of green manure.
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