优质早稻佳辐占高产优质高效综合栽培技术研究

Cultivation techniques of high quality early rice Jiafuzhan for high quality, high yield and high efficiency

运用最优设计,对优质早籼稻佳辐占进行密度和氮、磷、钾肥用量4项栽培措施研究,建立产量、净收入、胶稠度、直链淀粉含量、蛋白质含量与4项栽培措施的回归模型。结果表明,4项措施对产量、净收入、胶稠度都有影响。增施钾肥能降低直链淀粉含量,增施氮肥能提高蛋白质含量。并经微机模拟筛选出高产高效高胶稠度的技术措施是每公顷插22～26万丛,施肥量折算为N144.6～163.8kg、P_2O_5 54～72kg、K_2O 92.5～149.4kg。

The cultivative density of high quality early nonglutinous rice Jiafuzhan and the applying amount of N , P and K fertilizer were studied by optimum design. The regression model of yield, net income, gel consistency, anylose content and protein content was built. The results showed that the four measures had an effect on yield, net income and gel consistency. The increase of K fertilizer would decrease amylose content and the increase of N fertilizer would raise protein content. And by imitative screening of computers, the technique measures for high yield, efficiency and gel consistency were that the number of rice bush was 220 - 260 thousand, the applying amount converted into net N fertilizer was 144. 6-163. 8 kg, P2O5 was 54 - 72 kg and K2O was 92.5-149. 4 kg per hectare.