钾肥对茎瘤芥产量和品质的效应

为了探明钾肥对茎瘤芥产量和品质的影响,设置6个不同施钾肥量处理,通过田间试验和实验室化验分析表明,增施钾肥,茎瘤芥地上部生物量增加,茎/叶比上升,瘤茎产量提高,最大可提高80.4%.同时,施钾在一定程度上能降低菜皮含量(4.6%),改善瘤茎菜形指数(1.09),提高加工品质和商品性;可溶性糖含量和粗蛋白含量与施肥量呈极显著正相关,Vc含量与施钾量相关性显著,可溶性糖含量最大能提高47.7%,提高粗蛋白含量10%以上,Vc的含量能提高3.9%.生产上推荐施钾量(K2O)在12-13 kg/667 m2范围,可以取得较高的产量和较好的品质.

Effects of Potash Fertilizer on Yield and Quality of B. V. Tumida

In order to verify influence of Potash on yield and quality of stem tumorous mustard,set up the six different amount treatment of applying potash.By fields trials and lab analyses.The result indicates that:The more the amount of applying potash is,the more the amount of creature on the ground of stem tumorous mustard is,the ratio of stem/leaf is raised,the yield of tumorous stem is raised,the maximum amount can be raised by 80.4%.At the same time,applying potash can reduce content of skin of vegetable(4.6%) to a certain extent,improve index of vegetable shapes of tumorous stem(1.09),raise processing quality and commodity.Content of soluble carbohydrate and content of crude protein between the amount of applying potash exists obvious harmonization.Content of VC and the amount of applying potash exists obvious relation.The maximum content of soluble carbohydrate can be raised by 47.7%,and content of crude protein by more than 10%,and content of VC by 3.9%.The amount of applying Potash(K2O)in production is within 13 kg/667m2,can obtain higher yield and better quality.