摘要
为了探索不同施肥量对湘杂棉7号的影响,提高棉花单产,节省肥料成本,于2010年在湖南耒阳进行了"3415"肥效试验。结果表明:经三元二次回归数学模型分析,湘杂棉7号在最佳经济产量133.359 kg/667m2的最佳施N量为25.714 kg/667m2,最佳施P2O5量为7.857 kg/667m2,最佳施K2O量为16.557 kg/667m2。
In order to study the influences of different fertilizer rates on Xiangzamian No.7, to increase the unit yield of cotton and to save fertilizer cost, a ＂3415＂ manure trial was conducted in Leiyang of Hunan Province in 2010. The results showed that through analyzed data by quadratic regression matrix combing with three factors, the optimum economic yield, fertilizer rate of N, fertilizer rate of P205 and fertilizer rate of K20 of Xiangzamian No.7 were 2 000.4 kg/ hm2, 385.71 kg/hm2, 117.855 kg/hm2 and 248.355 kedhm2, respectively.
出处
《湖南农业科学》
2011年第9期40-42,共3页
Hunan Agricultural Sciences
关键词
棉花
栽培
施肥
最佳施肥量
湘杂棉7号
cotton
cultivation
fertilization
optimum fertilizer rate
Xiangzamian No.7
