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油菜秧苗生长好坏,对产量影响很大。切实抓好油菜苗期施肥,是培育壮苗的关键措施。高产经验表明,苗期施肥主要抓好以下5条:1.早施齐苗肥油菜幼苗生长需肥虽不多,但不可缺肥。因为油菜苗的“离乳”期很早,营养供应不及时,容易出现脱力现象,秧苗瘦细黄弱,抗逆力下降。所以当苗床80%以上秧苗齐苗后,每亩浇施20%浓度的人粪尿液500公斤,或每亩用尿素4公斤左右兑水浇喷。
Rape seedlings grow well or bad, a great impact on the yield. Effectively grasp the rapeseed fertilizer, is the key to nurturing seedlings. High-yielding experience shows that the main fertilization at the seedling stage the following five: As early as Qi Miao seedlings need to grow fertilizer, although not much, but indispensable to fertilizers. Because rapeseed seedlings “early” out of milk period, the nutritional supply is not timely, prone to the phenomenon of detachment, seedling thin yellow weak, decreased resistance. Therefore, when more than 80% of the seedbed seedlings Qi Miao, pouring 20% of the concentration of manure applied to 500 acres of human urine, or about 4 kg of urea watered spray with water.