新疆农业科学2017，Vol.54Issue(4)：675-681,7.DOI:10.6048/j.issn.1001-4330.2017.04.012
高密度栽培条件下磷肥用量对滴灌玉米干物质积累和产量的影响
Effects of Phosphorus Fertilizer on the Characteristics of Dry Matter Accumulation and Yield in Maize under High Planting Density
摘要
Abstract
[Objective] In order to discuss the effect of phosphorus fertilizer on the characteristics of yield and nutrient uptake in maize.[Method]The split block design was used to analyze the effect of different P2O5 quantities on the dry matter accumulation and yield in maize, and further explore the relationship between yield and phosphorus application under high density planting and fertigation.[Result]The results indicated that with the increase of phosphorus application, the maize yield and stem diameter showed a parabolic trend.The dry matter accumulation was increased with the maize development, which was slowly accumulated from elongation stage to bell stage and rapidly accumulated from bell stage forward.Under 187.5 kg/hm2 phosphorus application, the leaf area index (LAI) and SPAD value were highest, respectively at different developmental stages.Under 187.5 kg/hm2 phosphorus condition, the leaf area index (LAI) value was significantly higher than that under the other treatments.With the increase of phosphorus application, the plant height of maize was increased, which showed the exponential trend.[Conclusion]Conclusively, the yield peaked at 16,021.61 kg/hm2 under the appropriate phosphorus application of 213.8 kg/hm2 at this experimental site.关键词
磷肥/高密度/滴灌/玉米/干物质积累/产量Key words
phosphorus fertilizer/high density planting/drip irrigation/maize/dry matter accumulation/yield分类
农业科技引用本文复制引用
丁变红,吴新明,陈江鲁,张小伟,杨京京,赵战胜..高密度栽培条件下磷肥用量对滴灌玉米干物质积累和产量的影响[J].新疆农业科学,2017,54(4):675-681,7.基金项目
新疆兵团科技支疆项目"滴灌玉米高密度栽培条件下高产高效水肥运筹规律的研究"(2014AB020)Science and technology supporting Xinjiang program of XPCC "Study on high yield and high efficiency of water and fertilizer application law of high density cultivation of maize under drip irrigation condition" (2014AB020) （2014AB020）
