The Influence of Different Topdressing Amount on Rapeseed Yield and Economic Benefit after Rapeseed Picking
In order to study the influence of different topdressing amount on the yield and economic benefits of rapeseed,and obtaine the best amount of fertilization after rapeseed picking.With Zhengy-ou89 and Baoyou150 as the test materials,a total of 6 treatments were set up without picking,picking without dressing and topdressing,and the changes of yield,plant traits and economic benefits under different nitrogen pursuit after rape picking were analyzed.The results showed that the crop had a certain impact on the yield of rape,and the production after picking was significant,and the produc-tion after picking was not obvious.The average output of each bolt treatment of Zhengyou89 and Baoyou150 was 2 014.22 kg/hm2,1 839.02 kg/hm2 respectively,and the output of control treatment(2 078.54 kg/hm2,1 920.89 kg/hm2)was 3.09%and 4.26%respectively,and the production reduc-tion was not significant.Rape picking after topdressing,reduce the branch level,promote the devel-opment of the root of the number of secondary branches and the number of single plant horn in-creased,with the main factor of the yield of picking.Picking for vegetables,the two varieties with P1 T4,P2 T3,respectively 17 899.89 yuan/hm2,16 016.12 yuan/hm2;than not pick control,increased 3 350.12 yuan/hm2,2 569.89 yuan/hm2,23.03%and 19.11%.The development of high-quality rape-seed oil-vegetable cultivation technology could significantly increase the output value of rapeseed,in-crease the income and efficiency of farmers,and effectively drive the development of rapeseed indus-try.When the urea was 75～150 kg/hm2,the net income of rapeseed was the highest and the econom-ic benefit was the largest.
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