目的探索重庆地区紫苏规范化栽培施肥技术。方法采用三元二次正交旋转设计,研究紫苏栽培中N、P、K的施肥量,以期达到最优施肥配比。结果N、P、K三要素对紫苏产量的影响效果大小顺序为:K>P>N,高钾条件可以有效促进氮肥对紫苏产量的提高,而低钾条件下,高氮更容易对产量产生抑制效应。最优施肥方案为CO(NH2)213.74~18.58kg·(667m2)-1,P2O56.40~7.96kg·(667m2)-1,K2O2.81~3.80kg·(667m2)-1。结论合理施肥可以有效提高紫苏的产量,为紫苏的规范化栽培提供理论支持。
Abstract
OBJECTIVE To explore a normalized fertilization technique for the Perilla frutescens (L) Britt in Chongqing. METHODS The quantities of N,P and K were studied to get the best ratio of fertilization by quadratic regression orthogonal rotational combing design with three factors. RESULTS The ranking of the effects of N,P,and K on the yield of Perilla was K>P>N. High quantity of K could improve the effect of N on the yield of Perilla, while in the condition of low quantity of K,high quantity of N tended to restrain the yield of Perilla. The best fertilization ratio was CO(NH2)2 13.74-18.58 kg?(667 m2)-1,P2O5 6.40-7.96 kg?(667 m2)-1,and K2O 2.81-3.80 kg?(667 m2)-1. CONCLUSION Rational ratio of fertilizers would increase the production of Perilla. This study provides the theoretical basis for standard cultivation of Perilla.
关键词
紫苏 /
肥料 /
三元二次正交旋转设计
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Key words
Perilla frutescens (L) Britt /
fertilization /
quadratic regression orthogonal rotational combing design
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中图分类号:
S567
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参考文献
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脚注
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基金
重庆市科学技术委员会中药产业重构提升重大专项(CSTS2010AA5026)
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