CAJ | 학술논문

[目的]研究钾肥施用对安徽贵池地区油菜产量和生物学性状的影响.[方法] 以华双5号为油菜供试品种,在氮、磷、硼肥配合施用的基础上,考察K_2O施用量为0、60、120、240 kg/hm~2 的4个处理下油菜株高、一级分枝高、一级分枝数、单株角果数、每角果粒数、千粒重等指标,并测定每小区产量.[结果]增施钾肥能显著促进油菜生长.同时,钾肥施用对改变油菜的群体生物学性状具有显著正向相关性,呈现株高、单株二级分枝数、单株角果数、每角果粒数、籽粒和茎秆产量均增加的统一趋势.施用钾肥240 kg/hm~2可以达到产量效益最大化.[结论]该研究为直播油菜轻简化栽培的肥料施用提供了进一步探索的实践前瞻.
[목적]연구갑비시용대안휘귀지지구유채산량화생물학성상적영향.[방법] 이화쌍5호위유채공시품충,재담、린、붕비배합시용적기출상,고찰K_2O시용량위0、60、120、240 kg/hm~2 적4개처리하유채주고、일급분지고、일급분지수、단주각과수、매각과립수、천립중등지표,병측정매소구산량.[결과]증시갑비능현저촉진유채생장.동시,갑비시용대개변유채적군체생물학성상구유현저정향상관성,정현주고、단주이급분지수、단주각과수、매각과립수、자립화경간산량균증가적통일추세.시용갑비240 kg/hm~2가이체도산량효익최대화.[결론]해연구위직파유채경간화재배적비료시용제공료진일보탐색적실천전첨.
[Objective] The study aimed to research the effect of potassium application on yield and biological traits of rape in Guichi area of Anhui Province. [Method] With Huashuang 5 as the tested rape variety, based on the combination application of N, P, K, the indexes such as plant height, first branch height, first branch number, pods per pant, grins per pod and 1 000-grain weight were investigated under the 4 treatments in which the K_2O was applied at 0, 60, 120, 240 kg/hm~2 resp. and the yield in each plot were determined. [Result] The potassium application could improve the rape growth remarkably. It had the significantly positive correlation on the biological traits that could change the rape populations and showed a consistent trend that the biological traits such as the plant height, second branch number per plant, pods per pant, grins per pod and the yield of grain and stem were all increased. The potassium application at 240 kg/hm~2 could make the maximizing yield benefit. [Conclusion] The study provided the practical foresight for further exploring the fertilizer application in simple cultivation of direct sowing rape.