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我室1978年选育的两型系杂交油菜,经小区对比、生产试验及品比试验,产量均比对照种或当地良种增产三成以上。为了摸索杂交油莱的良种良法及其生产潜力,确定相应的丰产技术措施,特进行此项研究。一、试验设计采用正交法,处理有种植密度、施肥水平及施肥方法三因素,分三个水平。 (1)密度:每亩分别为6000株、8000株、10000株。 (2)施肥水平:高肥区(47斤氮)年前27斤氮,其中基肥鸡塮35担,随根肥硫铵30斤,过磷酸钙130斤,腊肥鸡塮34担;年后20斤氮(硫铵100斤)。中肥一区(33斤氮)年前17斤氮,基肥鸡塮35担,随根肥硫铵15
In 1978, the two-type rapeseed rapeselected in our lab was increased by more than 30% compared with that of the control or local breed after plot comparison, production test and product ratio test. In order to explore hybrid rapeseeds good seed law and its production potential, to determine the appropriate high-yielding technical measures, especially for this study. First, the experimental design using orthogonal method, dealing with planting density, fertilization levels and fertilization methods of three factors, divided into three levels. (1) Density: 6000 plants per acre, 8000 plants and 10000 plants respectively. (2) fertilization level: high fat area (47 kg of nitrogen) 27 kg of nitrogen before the year, of which 35 kg base chicken, with 30 kg ammonium sulfate, 130 kg of superphosphate, 20 pounds of nitrogen (ammonium sulfate 100 pounds). Fertilizer in a district (33 kg of nitrogen) 17 kg of nitrogen a year ago, basal chicken 塮 35 Tam, with the root fertilizer 15 ammonium sulfate