摘要
基于30年的长期定位试验,研究了长期定位施肥对夏玉米光合性状及产量的影响。研究结果表明:随着施肥量的增加,玉米穗位叶叶绿素含量,光合速率,干物质积累量都显著提高。有机肥与氮肥配施的处理与偏施氮肥的处理相比,各项指标提高最为显著。长期不施肥,玉米的穗粒数最低偏施氮肥可以提高穗粒数,但与对照差异不显著,有机肥与氮肥配施可以显著提高小麦的穗粒数,产量较高,高有机肥与高氮肥配施的处理产量最高。
The effect of the fertilization on maize photosynthetic characteristics and yield was studied on the basis of a long-term fertilization trial, the results indicated that： fertilizer significantly increased chlorophyll and photosynthetic in spike leaf of maize, dry matter accumulation as compared with the non-fertilizer treatment. The long-term combined application of organic and N fertilizer treatment increased chlorophyll and photosynthetic in spike leaf of maize obviously, compared with single N treatment, so increased the dry matter accumulation. The long-term non-fertilizer treatment reduced grains per spike; the single N treatments can increase grains per spike, but not significantly as compared with the non-fertilizer treatment. The organic and combine application of organic and N fertilizer treatment increased grains per spike, so the yield was higher. The yield of combined application of higher organic and higher and fertilizer treatment was highest.
出处
《中国农学通报》
CSCD
北大核心
2009年第15期136-139,共4页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金项目"长期定位不同施肥对无石灰性潮土粘土矿物形成机制及钾素吸解位点的研究"(30873470)
国家粮食丰产科技工程"胶东丘陵小麦玉米高产稳产节本增效技术集成研究与示范"(2006BAD02A00)
山东省农业重大应用技术创新项目"玉米超高产简化栽培模式规程"
关键词
长期定位施肥
夏玉米
光合形状
产量
long-term located fertilization, summer maize, photosynthetic characteristics, yield
