2. To promote control and integration, nurture strong seedlings for prosperous winter fields, and use deep roots to cut off roots, pick up leaves and other control measures; for weak seedlings and weak seedlings, apply 5 kg of urea per 667 square meters, and promote weak Turn strong.
III. When freeze-proof seedlings are 6-7 leaves, 667 square meters are sprayed with 15% paclobutrazol powder 50 grams plus 50 kg of water to inhibit root elongation and enhance antifreeze ability. The first cultivator soil is used from the end of October to early November, December In the middle of the second cultivator soil, to prevent exposure of the roots and frozen.
4. Prevention of pests and diseases After sowing, 667 square meters of 50 grams of crystal trichlorfon are dissolved in water and stir well with the bran of bran.
V. Proper irrigation well topdressing cultivars in spring combined spring irrigating Shilei glutinous fertilizer, 667 square meters topdressing urea 7.5 kg; flowering 667 square meters spraying 0.3% potassium dihydrogen phosphate and 0.2% borax solution 50 kg, to enhance the fruit rate.
6. Timely Harvest When 80% of the whole field of rapeseed is yellow-green, it is harvested. Should receive a single, singles, single storage, to prevent mixing and affect the quality.
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