Effects of potassium application treatments on the yield and quality of flowering stem of cabbage oilseed rape
In order to investigate the effects of different potassium application treatments on the yield and quality of bras-sica napus L.,three varieties with high potassium content(Yuyou 7),medium potassium content(Zhongshuang 8)and low potassium content(Baoyou 10)were treated with different potassium application treatments,and the yield and quali-ty of flowering stem were determined.The results showed that different potassium application treatments could improve the yield of rapeseed.The yield of Yuyou 7 increased,but it was much lower than the other two rapeseed varieties.The highest yield of Zhongshuang 8 was 20.66 kg each area under T3 treatment,and the highest yield of Baoyou 10 was 23.30 kg each area under T8 treatment.The content of soluble sugar and soluble protein in Zhongshuang 8 was the highest under T1 treatment,the content of potassium was the highest under T3 treatment,and the content of free amino acid was the highest under T4 treatment.The comprehensive nutritional quality of Baoyou 10 reached the highest under T2 treatment.Yuyou 7,a rapeseed variety with high potassium content,is not suitable as a mow-picking variety.The increase of potassi-um application in Zhongshuang 8 is conducive to the increase of the yield and quality of rapeseed moss,and the applica-tion of potassium fertilizer in Baoyou 10 during the bolting period is conducive to the increase of the yield and nutritional quality of rapeseed moss.
Flowering Chinese cabbagePotassium application treatmentsYieldNutritional quality