Effects Of Different Amount Of Nitrogen Phosphorus And Potassium Fertilizer On Rape Growth, Yield And Quality Of Brassica

[Purpose]:Provide a reference for the current rapeseed and rapeseed breeding, guide the promotion of the current Southern rapeseed Fertilization technology under production conditions.[Method]: In different years and in different soil conditions, set up two field trials, one test is the 3414 trial, for the effect of N, P and K ratio on the yield of Brassica napus, The other test is study the effect of nitrogen, phosphorus, potassium, boron different ratio to rapeseed quality.[result]: Test one show that higher proportion of nitrogen(consistent with phosphorus and potassium fertilizer) and higher proportion of phosphorus(consistent with Nitrogen and Potassium) for rapeseed crops are growing well, production increasing; and the proportion of potassium affect yield with no obvious rule; 14 kinds of NPK combination treatment to m(N) :m(P2O5) :m(K2O) = 1 :0.37 :0.37 highest grain yield treated for 2 551.5kg / hm2; Second test showed that fertilization have an impact on rapeseed glucosinolate and erucic acid, but little effect on the quality. Potassium application of potassium and chloride compared, rapeseed glucosinolates increased, Based on phosphorus,potassium, boron fertilizers to nitrogen fertilizer, Grain protein content increase and oil content deduce, and with the effect of increasing the amount of nitrogen is more obvious, Nitrogen large extent on rapeseed oil and protein’s content, phosphorus, potassium, or Boron has been improved oil content and protein lower content. [conclusion]: NPKB Fertilizer on Hybrid Rapeseed output, income effect is remarkable, is to ensure the efficient production and quality of key technology. Potash is recommended to use potassium chloride, Boron is recommended Guoguang boron.