CAJ | 학술논문

为掌握贵州薏苡获得高产的最佳种植密度与施肥情况，采用4因素（密度、N、P2 O5和 K2 O）5水平二次正交旋转组合设计，研究各试验因子对薏苡产量及构成因素的影响。结果表明：氮肥对薏苡产量的影响最大，其次是密度。薏苡高产的最佳方案：密度8892株/667m2，氮肥（N）、磷肥（P2 O5）、钾肥（K2 O）施用量分别为25 kg/667m2、27 kg/667m2、36 kg/667m2条件下，可得到417．66 kg/667m2的理论产量，与实际产量（403．33 kg/667m2）的各因素组合方案相比，增施磷肥能有效提高薏苡产量。
위장악귀주의이획득고산적최가충식밀도여시비정황，채용4인소（밀도、N、P2 O5화 K2 O）5수평이차정교선전조합설계，연구각시험인자대의이산량급구성인소적영향。결과표명：담비대의이산량적영향최대，기차시밀도。의이고산적최가방안：밀도8892주/667m2，담비（N）、린비（P2 O5）、갑비（K2 O）시용량분별위25 kg/667m2、27 kg/667m2、36 kg/667m2조건하，가득도417．66 kg/667m2적이론산량，여실제산량（403．33 kg/667m2）적각인소조합방안상비，증시린비능유효제고의이산량。
In order to explore the optimum planting density and fertilizing amount to obtain high yield of coix in Guizhou,orthogonal experiments with 4 factors and 5 levels were conducted to study the effects of various factors on coix yield and yield components.Results:nitrogen contributed the most to coix yield, followed by density. The optimum combination was as follows:density 8 892 plants/667m2, N 25 kg/667m2 ,P2 O5 27 kg/667m2 ,K2 O 36 kg/667m2 .Under these conditions the theoretical yield reached 417.66 kg/667m2 ,compared with the actual yield 403.33 kg/667m2 ,it could be concluded that increasing phosphatic fertilizer application amount could effectively enhance coix yield.