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中国农学通报

中国农学通报 ›› 2008, Vol. 24 ›› Issue (9): 210-213.

• 农学 农业基础科学 • 上一篇    下一篇

黔苦2号苦荞新品种春播高产综合农艺措施研究

马 俊,阮培均,程国尧,毛 春,赵明勇,蔡 飞   

  • 收稿日期:2008-06-02 修回日期:2008-07-08 出版日期:2008-09-05 发布日期:2008-09-05

Study on High-yield Integrated Agronomic Measures of
Qian-bitter-buckwheat 2 Planted in Spring

Ma Jun, Ruan Peijun, Cheng Guoyao, Mao Chun, Zhao Mingyong, Cai Fei   

  • Received:2008-06-02 Revised:2008-07-08 Online:2008-09-05 Published:2008-09-05

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摘要： 运用二次回归正交旋转组合设计，在春播条件下研究黔苦2号苦荞籽粒产量与其播种量及N、P、K肥施用量间的关系。通过试验，建立了黔苦2号籽粒产量与主要农艺措施的数学模型，通过对模型的解析和模拟寻优分析。结果表明：黔苦2号籽粒产量高于2800kg/hm2的优化栽培技术方案：播种量67.14~74.93 kg/hm2，施N量28.88~40.12 kg/hm2，施P2O5量179.11~210.89 kg/hm2，施K2O量43.94~61.06 kg/hm2；试验4因子对籽粒产量影响的程度大小为播种量>施K2O量>施P2O5量>施N量。

Abstract: Using quadratic regression universal rotary combination design, we studied relations between grain yield of Qian-bitter-buckwheat 2 which was planted in spring and four main agronomic measures（seeding rate, N-application rate , P2O5-application rate and K2O-application rate）.Mathematics model was set up by experiment．By simulating the model and simulation-optimization analysis，we put forward cultivation techniques programme（buckwheat grain yield≥2800kg/hm2）: seeding rate is 67.14~74.39 kg/hm2, N-application rate is 28.88~40.12kg/hm2, P2O5-application rate is 179.11~210.89kg/hm2, K2O-application rate is 43.94~61.06 kg/hm2. The results showed that the effect on grain yield is：seeding rate＞K2O-application rate＞P2O5-application rate＞N-application rate.

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