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通过对黑龙江省主推玉米品种绥玉23进行不同密肥栽培研究,寻求密度与肥量的最佳结合点,获得最大化效益。研究结果表明,在不同施肥水平下,各密度处理的差异较大。在高肥力水平下密度67 500/株/hm2产量、总效益最高,在中等肥力下密度60 000株/hm2产量、总效益最高,并且高于同密度下的高肥力水平的产量,为不同生产水平下,实现科学合理的群体结构提供依据。
Through the research on different density fertilizers of Suiyu 23, the main maize variety in Heilongjiang Province, the best combination point of density and fertilizer amount was obtained and the maximum benefit was obtained. The results showed that there were great differences among the treatments at different fertilization levels. Under the high fertility level, the yield of 67 500 / plant / hm2 was the highest with the highest total yield. The yield was 60 000 plants / hm2 under medium fertility, with the highest total benefit and higher yield than the high fertility at the same density. Level, to achieve a scientific and reasonable group structure to provide the basis.