CAJ | 학술논문

采用四因素五水平二次正交旋转组合设计，研究了密度、氮肥、磷肥和钾肥4种因素对甘薯新品种漯徐薯9号产量的影响，并构建产量函数模型。结果表明：4种因素对甘薯产量影响的顺序为钾肥＞密度＞磷肥＞氮肥；本试验条件下漯徐薯9号达到45000 kg/hm2以上产量所要求的优化栽培措施是：密度58600～63220株/hm2，尿素138．57～161．43 kg/hm2，过磷酸钙245．39～281．97 kg/hm2，硫酸钾617．85～663．75 kg/hm2。
채용사인소오수평이차정교선전조합설계，연구료밀도、담비、린비화갑비4충인소대감서신품충탑서서9호산량적영향，병구건산량함수모형。결과표명：4충인소대감서산량영향적순서위갑비＞밀도＞린비＞담비；본시험조건하탑서서9호체도45000 kg/hm2이상산량소요구적우화재배조시시：밀도58600～63220주/hm2，뇨소138．57～161．43 kg/hm2，과린산개245．39～281．97 kg/hm2，류산갑617．85～663．75 kg/hm2。
Using rotational quadratic regression design,the effects of plant density and fertilizers of nitro-gen (N),phosphorus (P)and potassium (K)on yield of new sweet potato cultivar Luoxushu 9 were studied, and the yield function mode was established.The results showed that the order of four factors influencing yield was K>planting density>P>N.In the conditions of this experiment,the optimal cultivation technique for yield of over 45 000 kg/hm2 was planting 58 600 ~63 220 plants per hectare,and applying 138.57 ~161.43 kg/hm2 of urea,245.39~281.97 kg/hm2 of calcium superphosphate and 617.85 ~663.75 kg/hm2 of potas-sium sulphate.