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运用二次回归旋转组合设计 ,对优质两系稻两优 2 186移栽叶龄 ,插植密度 ,施 N、 P、 K肥量等 5项农艺措施进行研究。建立产量、净收入与 5项农艺措施的回归模型。分析了农艺措施对产量和净收入的影响。结果表明 ,对产量的作用主要是叶龄和施 N量 ,对净收入的作用主要是叶龄和施 P、 K肥量。并经微机模拟筛选和综合分析 ,两优 2 186作为单季稻栽培时 ,其高产高效的栽培技术措施是 :4 .0～ 4 .5叶移栽、每公顷插 2 4 .0～ 2 5 .5万丛、施纯 N 12 0～ 135 kg、 P2 O536 .0～ 6 9.8kg、 K2 O 6 7.5～ 113.7kg
By using quadratic regressive rotation combination design, five agronomic measures, such as transplanting leaf age, planting density, N, P and K fertilizer application, were studied. Establish a regression model of production, net income and five agronomic measures. The impact of agronomic measures on production and net income was analyzed. The results showed that the main effect on yield was leaf age and N application rate, and the effect on net income was mainly leaf age and application of P and K fertilizer. The results showed that when Liangyou 2 186 was used as a single cropping rice, its high yield and high efficiency cultivation techniques were: 4.0-0.4.5 leaf transplanting, 24.0-2.5.5 per hectare Wan Cong, Shi Chun N 12 0 ~ 135 kg, P2 O536. 0 ~ 6 9.8kg, K2 O 6 7.5 ~ 113.7kg