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1.早间苗,稀定苗间密留稀、去弱留壮,调整株间距离,保持均匀。一般分2次间苗,第一次在齐苗后,第二次间苗在第二片真叶出现时。3叶期进行定苗,一般保持苗距7～10厘米。播种量小的可只间1次苗。2.早施、施足苗肥施肥先淡后浓、由少到多、以速效氮肥为主的原则。在干旱的地区和年份,应结合浇水进行,带水追肥,以水促肥。对移栽油菜除追施2次氮肥外,还应适当追施腊肥1次。对直播油菜,应在第一次间苗时和定苗后各追肥1次。在苗
1. Morning seedling, dilute Dingmiao dense dilute, weak to stay strong, adjust the distance between strains, to maintain uniform. Generally divided into 2 times Miao, the first time in the Qi Miao, the second seedlings in the second true leaves appear. 3 leaf stage Dingmiao, generally to maintain seedling spacing of 7 to 10 cm. Seeding rate can be only 1 small seedlings. 2. As early as Shi, Shizuosiao fertilizers first light after the concentration, from less to more, with quick-acting nitrogen-based principles. In arid areas and years, should be combined with watering, with water dressing, water to fatten. In addition to topdressing rape transplanted nitrogen 2 times, but also the appropriate topdressing 1 times. On the rapeseed live, should be the first time after the seedlings and Dingmiao top dressing 1 times. In the seedlings