摘要
本研究以垦农23为试验材料,探讨养分调控与栽培模式对大豆干物质积累及产量的影响。采用二因素裂区试验设计,主区为养分调控处理,设置优化施肥(D)和对照施肥(N)2个水平;副区为栽培模式处理,在130 cm的大垄上分别设置垄上4行、垄上5行和垄上6行3种模式。结果表明:大豆生育期内叶面积指数和干物质积累过程均呈单峰曲线,其峰值出现在结荚期至鼓粒盛期之间。鼓粒期干物质积累与产量呈极显著正相关。优化施肥(D)处理通过提高叶面积指数和干物质积累量,在不同栽培模式下的产量均高于对照施肥(N)处理,其中D-4比N-4提高4.3%,D-5比N-5提高17.1%,D-6比N-6提高29.5%。本试验条件下,优化施肥技术与130 cm垄上6行栽培模式,在34万株·hm-2的种植密度下是当地大豆高产优质合理种植模式。
In order to study the effects of cultivation patterns and nutrient regulation on dry matter accumulation and yield of soybean, the plot experiment was conducted with Kennong 23. The optimized fertilization（D） and compared fertilization（ control, N） were the main plots, while cultivation patterns treatments, 4, 5 lines and 6 lines on the ridge of 130 cm in width, were the secondary plots. The results showed that dry matter accumulation of the whole plant followed a single peak curve and the peak appeared from pod stage to seed filling stage. Seed yield was positively correlated with the dry matter accumulation in the seed filling stage. The treatment with optimized fertilization （D） had higher leaf area index and dry matter accumulation than control. Compared with the control（N）, the yield of D-4 increased by 4. 3%, D-5 increased by 17.1% and D-6 increased by 29. 5%. The treatment with the density of 340 000 plants·ha^-1 combined with optimized fertilization and 6 lines on the 130 cm ridge was the most reasonable planting pattern for high yield and good quality for local soybean production.
出处
《大豆科学》
CAS
CSCD
北大核心
2016年第4期593-598,共6页
Soybean Science
基金
国家"十二五"科技支撑计划(2013BAD20B04)
关键词
大豆
养分调控
栽培模式
干物质积累
产量
Soybean
Nutrient regulation
Cultivation patterns
Dry matter accumulation
Yield
