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在黄羊镇农怍物试验站对新品种“甘春86—5001”进行了密度和化肥用量的2因素5水平正交回归旋转设计的模式化栽培技术研究。结果表明,在中等地力条件下,甘春86～5001以亩施纯氮9～13公斤,纯磷6～9公斤,每亩基本苗40～45万较好。密度与施化肥的最佳组合为密度41.8万苗,亩施纯氮11.75公斤,纯磷8.2公斤,每亩籽粒产量可达650.8公斤,其相应的产量结构为成穗数44.45万,穗粒数39.5粒,千粒重43.13克。本文还分析了生物产量,主要经济性状和倒伏率与密度及施肥量的关系,指出超高产品种的选育和栽培管理必须重视倒伏问题。
A new type of “Ganchun 86-5001” was conducted at Huangnizhen Nongfuguang Experimental Station to study the modeled cultivation technology of orthogonal regression rotation design with 2 factors and 5 levels of density and fertilizer. The results showed that under moderate soil conditions, Ganchun 86 ~ 5001 was 9 ~ 13 kg of pure nitrogen and 6 ~ 9 kg of pure phosphorus per acre, with 400 ~ 450 000 per mu. The optimal combination of density and chemical fertilizers for the density of 41.8 million seedlings, Mushi nitrogen 11.75 kg, 8.2 kg of pure phosphorus, grain yield per acre up to 650.8 kg, and its corresponding yield structure 444,500 into spikes, spikelets 39.5 grains, grain weight 43.13 grams. The paper also analyzes the relationship between biological yield, main economic traits, lodging rate, density and fertilizer amount. It is pointed out that the breeding and cultivation management of super high yielding varieties must pay attention to the lodging problem.