论文部分内容阅读
采用二次通用旋转回归组合设计方案,研究亚麻阿里安产量与有效茎、茎重和施肥量(N、P、K)之间的关系,建立各性状、各因素与产量指标间的数学模型,确立了亚麻阿里安高产(即产量在12000kg/hm2以上)栽培的有效茎、茎重和施肥量的方案是:有效茎1891~1950万株/hm2、茎重0.55~0.70g/株、纯N施用量144.5~182.3kg/hm2(即尿素314.13~396.30kg/hm2)、P2O5施用量118.5~137.1kg/hm2(即16%过磷酸钙740.63~856.88kg/hm2)、K2O施用量177.8~205.7kg/hm2(即50%硫酸钾355.6~411.4kg/hm2),其中N:P2O5:K2O的最佳比例1.3:1:1.5。各性状对产量的影响依次是茎重>有效茎,各因素对产量的影响依次是钾肥>氮肥>磷肥。
The quadratic general rotation regressive design was used to study the relationship between the yield of Ariane and the effective stem, stem weight and fertilizer (N, P, K), and the mathematical models of the traits, The results showed that the effective stems, stems and fertilizers of A. angustifolia with high yield (above 12000kg / hm2) were 1891 ~ 1950000 plants / hm2, 0.55 ~ 0.70g stems, The application rates of 144.5-182.3 kg / hm2 (ie 314.13-396.30 kg / hm2 of urea), 118.5-137.1 kg / hm2 of P2O5 (ie, 740.63-856.88 kg / hm2 for 16% superphosphate), and 177.8-205.7 kg / hm2 (ie, 355.6 ~ 411.4kg / hm2 of 50% potassium sulfate), and the best ratio of N: P2O5: K2O is 1.3: 1: 1.5. The effects of the traits on the yield were stem weight> effective stem, the impact of various factors on the yield were potassium> nitrogen> phosphate.