磷、钾肥对蒙农红豆草种子产量和质量的影响  

Effects of phosphorus and potassium on seed yield and quality of Onobrychis viciaefolia cv.Mengnong

作　　者：张银敏[1] 李聪[1] 苗丽宏[1] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所牧草遗传育种研究实验室,北京100193

出　　处：《草原与草坪》2010年第2期27-32,共6页Grassland and Turf

基　　金："十一五"国家科技支撑计划(2006BAD16B02);"十一五"国家科技支撑计划(2006BAD01A19)资助

摘　　要：研究在北京地区施磷、钾肥对蒙农红豆草(Onobrychis viciaefoliacv.Mengnong)种子产量及质量的影响。结果表明:在一年内施肥总量相同的情况下,春季全施和秋/春(1/2)蒙农红豆草的种子产量高于秋/春(1/1)施肥试验的种子产量。春季全施试验中,施磷肥100 kg/hm2处理的种子产量为1 560 kg/hm2,显著高于其他处理(P<0.05);施钾肥180 kg/hm2处理的种子产量最低,为1 176kg/hm2。秋/春(1/1)施肥试验中,施磷肥100 kg/hm2处理的种子产量为1 357.3 kg/hm2,显著高于其他处理(P<0.05)。秋/春(1/2)施肥试验中,施磷肥100 kg/hm2处理的种子产量为1 519.6 kg/hm2,显著高于其他处理(P<0.05)。由相关分析可知,蒙农红豆草种子产量与单位面积的有效分枝数呈显著的正相关关系(R=0.955,P<0.05),而与每个枝条的花序数呈极显著的负相关关系(R=-0.991,P<0.01)。The effects of phosphorus and potassium fertilizers on seed yield and seed quality of Onobrychis viciaefolia cv.Mengnong were studied in Beijing area.The results showed that the actual seed yield under 2 treatments（all amount of fertilizers was applied in spring or two-thirds amount of fertilizers were applied in spring） were both higher than that of the treatment（half of fertilizers applied in the spring） under the same fertilization level.The seed yield under the treatment of phosphorus application（100 kg/ha） was 1 560 kg/ha,evidently higher than that of other treatments（P〈0.05）;and the seed yield under the treatment of potassium（180 kg/ha） was 1 176 kg/ha,which was the lowest among all treatments in the condition of the all fertilizers applied in the spring.In the condition of 2/3 of fertilizers applied in the spring,the seed yield under the treatment of phosphorus application（100 kg/ha） was 1 357.3 kg/ha,evidently higher than that of other treatments（P〈0.05）.The seed yield under the treatment of phosphorus application（100 kg/ha） was 1 519.6 kg/ha,evidently higher than that of other treatments（P〈0.05）.The correlation analysis results showed that the actual seed yield and the effective shoots number per unit area was positively correlated（R=0.955,P〈0.05）;the actual seed yield and the inflorescence number per shoot was negatively correlated（R=-0.991,P〈0.01）.

关 键 词：蒙农红豆草 磷肥 钾肥 种子产量 种子质量 

分 类 号：S143[农业科学—肥料学]