不同施钾处理对甘蓝型油菜菜薹产量和品质的影响

Effects of potassium application treatments on the yield and quality of flowering stem of cabbage oilseed rape

摘要

为了探究不同施钾技术对甘蓝型油菜菜薹产量和品质的影响，笔者通过对高钾含量品种(玉油7号)、较高钾含量品种(中双8号)和低钾含量品种(保油10号)进行不同施钾处理，摘取菜薹进行产量和品质指标测定。结果表明，不同施钾处理能提高菜薹产量，玉油7号产量有所增加，但其产量远低于其他2个油菜品种，中双8号在T3处理下菜薹产量最高(20.66 kg·小区^-1)，保油10号在T8处理下菜薹产量最高(23.30 kg·小区^-1)；中双8号在T1处理下菜薹可溶性糖和可溶性蛋白质含量最高，T3处理下钾含量最高，T4处理下游离氨基酸含量最高，而保油10号在T2处理下综合营养品质最高。高钾含量油菜品种玉油7号不适合作为摘薹品种，中双8号提高施钾量有利于油菜菜薹产量和品质的提高，保油10号在抽薹期追施钾肥有利于菜薹产量的增加，一定范围内提高施钾量也有利于其营养品质的提高。

Abstract

In order to investigate the effects of different potassium application treatments on the yield and quality of Brassica 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 quality 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 potassium application in Zhongshuang 8 is conducive to the increase of the yield and quality of rapeseed moss, and the application of potassium fertilizer in Baoyou 10 during the bolting period is conducive to the increase of the yield and nutritional quality of rapeseed moss.

关键词

菜薹 / 施钾处理 / 产量 / 品质

Key words

Flowering Chinese cabbage / Potassium application treatments / Yield / Nutritional quality

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基金资助

云南省油菜产业技术体系项目(2020KJTX005-05)