中国生态农业学报2012，Vol.20Issue(5)：550-555,6.DOI:10.3724/SP.J.1011.2012.00550
施肥措施对砂姜黑土小麦生长性状、营养元素累积及产量的影响
Effects of different fertilization schemes on growth, accumulation and transportation of nutrient elements and yield of wheat in lime-concreted black soil region
摘要
Abstract
A field experiment was conducted to determine the effects of different fertilization schemes on the number of secondary roots and tillers, leaf area index, dry matter, NPK accumulation and transportation and yield of wheat in lime-concreted black soil region. The fertilization schemes included non-fertilization (CK), conventional fertilization (CG), recommended fertilization (TJ), lose-control fertilizer application (KS) and slow-released fertilizer application (HS). The results showed that the number of secondary roots, tillers and leaf area index reached favorable levels at heading stage under HS treatment. The number of secondary roots under HS treatment was significantly higher than those under TJ, CG, KS and CK treatments by 7.2%, 19.7%, 22.1% and 24.7%, respectively. Compared with CK, CG, TJ and KS treatments, HS treatment increased tiller number by 25.0%, 11.1%, 11.1% and 20.0%; leaf area index by 39.1%, 23.1%, 10.3% and 8.5%, respectively. HS treatment promoted accumulation and transportation of NPK and dry matter at middle and later wheat growth stages. It also increased N, (P2O5) and K(K2O) utilization efficiencies. N, P(P2O5) utilization efficiencies were 43.35%, 19.92%, significantly higher than those under CG by 13.66%, 8.15%. K(K2O) utilization efficiency was 37.63%, significantly higher than those under CG and TJ by 12.01% and 9.47%, respectively. Wheat yield under HS treatment was 6 424 kg·hm-2, which represented an increase of 71.8%, 6.4%, 4.5% and 5.3%, respectively, over that under CK, CG, TJ and KS treatments.关键词
施肥措施/控失肥/缓释肥/砂姜黑土/小麦产量/N、P、K素累积/叶面积指数Key words
Fertilization scheme/ Lose-control fertilizer application/ Slow-released fertilizer/ Lime-concreted black soil/ Wheat yield/ N, P, K accumulation/ Leaf area index分类
农业科学引用本文复制引用
郑学博,崔键,马超,周静,房春兴,詹其厚..施肥措施对砂姜黑土小麦生长性状、营养元素累积及产量的影响[J].中国生态农业学报,2012,20(5):550-555,6.基金项目
国家科技支撑计划项目(2009BADA6B04)资助 （2009BADA6B04）
