不同种植密度和施钾量对秦优11号生长及产量的影响  

Effects of the Different Amount of Potassium Fertilizer and Plant Density to the Growth and Yield of Qinyou 11

作　　者：李孟良[1] 

机构地区：[1]安徽科技学院农学院,安徽凤阳233100

出　　处：《安徽科技学院学报》2015年第5期7-11,共5页Journal of Anhui Science and Technology University

基　　金：安徽科技学院校级重点建设学科(AKZDXK2015A02)

摘　　要：通过田间试验研究了不同钾肥施用量(氯化钾,160kg/hm^2、200kg/hm^2、240kg/hm^2)和不同的种植密度(21万株/hm^2、25万株/hm^2、30万株/hm^2)对直播油菜生长和产量的影响。结果表明,适量的钾肥配上合理的种植密度对直播油菜的生长和产量有明显的促进作用,不同处理间有效分枝起点、主花序有效长度、千粒重等性状差异不显著,在种植密度25万株/hm^2、施钾肥240kg/hm^2时油菜产量最高,达到3216.67kg/hm^2。增产主要原因是显著增加全株有效角果数和每角粒数。A field experiment was conducted to study the different amount of potash fertilizer （ KCI： potassium chloride, 160kg/hm2, 200kg/hm2, 240kg/hm2） and different planting density （210000/hm2 strains, 250000strains of/hm2, 300000 strains of/hm2 ） effect on growth and yield of direct seeding rape. The results showed that the amount of K Fertilizer on the reasonable planting of direct seeding rape, test results showed differences in inflorescence, 1000 grain weight was not significant, and 250000 strains of/hm2, Potassium chloride 240kg/hm2, cant increase in yield of whole plant pod number of main density had a significant effect on the growth and yield traits of effective branch point, effective length of main the rape yield was the highest in the planting density of up to 3216.67kg/hm2. The main reason is the signifi- cant increase in yield of whole plant pod number of main inflorescence, effective pod number, seed number per pod.

关 键 词：直播油菜 钾肥 种植密度 施用量 生长 产量 

分 类 号：S565.4[农业科学—作物学]