稻田免耕大麦的高产机理及优化配套栽培技术

1987～1989采用播种量、有机肥和化肥氮、磷、钾用量的五因素五水平的二次回归通用旋转组合设计,通过除草剂效应,施肥技术与方法等的小区试验,并且设置了高产示范田。经电子计算机统计分析和选优,总结出亩产350kg左右的“中群体、壮个体、稳健生长”的免耕大麦优化高产配套技术方案,并建立了各麦区主要栽培措施的数学模型。

Studies on high-yield mechanism and optimized and combinational cultivation technique of barley sown in no-tillage paddy field.

The high-yield mechanism of barley sown in no-tillage paddy field was investigated through two years experiments conducted in many areas. The effect of applying different rates of seed, manure, N, P and K on yield of barley was studied in a common-used, rotational and combinational design of quadratic regression. Plot experiments were carried out to investigate the effect of applying herbcides on weed-conrol and barley yield, and of different methods of applying fertilizer on yield and its components. Also high-yield demonstrations were laid out. Optimized and combinational cultivation schemes"moderate population, strong individual and steady growth"for more than 350 kg/mu of no-tillage barley yield, were suggested. Mathmatical model for principal measures of cultivation was established for different barley growing areas.