莆大麦9号高产高效优化栽培技术研究

为了探讨莆大麦9号高产高效优化栽培技术,采用四因素二次通用旋转组合设计试验方法,研究了基本苗及氮、磷、钾施用量四项主要栽培措施对大麦产量及效益的影响。通过产量及效益数学模型的优化与解析,明确了影响大麦产量及效益的关键因子和实现高产高效优化栽培的综合农艺措施。结果表明,在4个因素中,对大麦产量的影响为:基本苗(K2O(P2O5(N;要获得300 kg/667 m2以上产量和800元/667 m2以上的经济效益,其最佳栽培措施组合是:保持基本苗11.610~12.390万/667 m2,施纯N:11.580~12.420 kg/667 m2,P2O5:4.722~5.278 kg/667 m2,K2O:11.580~12.420 kg/667 m2。为良种良法配套、丰产增收及农艺措施的合理运筹提供科学依据。

High Yield and Efficiency and Optimizing Cultivation Technology of Pudamai 9

The relationship between the main cultivation measures and yield and benefit of spring barley in paddy field on south was studied in this paper with experiment model.Through analysis on the mathematical model of yield and benefit,the key factors influencing the yield and benefit of barley were clarified and the agronomic practices to achieve high yield and benefit were realized.To keep yield reach 300 kg/ 667㎡ and the benefit exceed 500 yuan/667㎡,the optimum comprehensive combination contained some keys,such as the primary seedlings 11.610～12.390×104plants/667㎡,N 11.580～12.420 kg/ 667㎡,P2O54.722～5.278 kg/ 667㎡,K2O 11.580～12.420 kg/ 667㎡.