杂交玉米新品种黔单19号高产配套栽培技术

A Set of Cultivation Technique for High Yield of Qiandan 19,a New Hybrid Maize Variety

采用4因素二次回归正交旋转组合设计，对杂交玉米黔单19号在黔西北山区的高产配套栽培技术模式进行了研究。结果表明，试验因素对黔单19号产量的影响程度为密度〉N〉K2O〉P2O5，合理密植，增施氮、磷、钾肥是实现该品种高产的重要技术措施。该品种在黔西北山区产量超过650kg／667m^2的综合栽培技术措施为种植密度3645-3883株／667m^2，纯氮21．17-24．20kg／667m^2，P2O5为16．35-21．33kg／667m^2，K2O为14．91-17．78kg／667m^2。

A set of cultivation technique for high yield of Qiandan 19, a new hybrid maize variety, was established by the quaternary quadratic regression orthogonal rotational combination design in Bijie prefecture. The results showed that the factor of affecting its yield was density 〉N〉K2O〉P2O5 and the important technical measure for its high yield was rational density and increase of N, P and K application amount. The comprehensive cultivation technical measure for over 650kg/667m^2 of Qiandan 19 is 3645 to 3 883 plants/667m^2 , 21.17 to 24.20kg/667m^2 of pure N, 16.35 to 21.33 kg/667m^2 of P205 and 14. 91 to 17.78kg/667m^2 of K2O.