| 曾胜和，尹飞虎，张磊，陈云，王国栋，高志建，梁飞，陈林.磷肥施用方法对滴灌水稻产量、养分吸收及运移的影响[J].广东农业科学,2014,41(22):5-7 |
|
查看全文
HTML
磷肥施用方法对滴灌水稻产量、养分吸收及运移的影响 |
| Effects of phosphorus fertilization methods on rice yield,nutrient uptake and transportation under drip irrigation |
| |
| DOI： |
| 中文关键词: 滴灌 水稻 磷肥 施肥方法 |
| 英文关键词: drip irrigation rice phosphorus fertilization methods |
| 基金项目:国家“863”计划项目（2011AA100508）；国家自然科学基金（31460541）；新疆农垦科学院引导计划项目（51YYD201211，YYD201104） |
|
| 摘要点击次数: 1480 |
| 全文下载次数: 688 |
| 中文摘要: |
| 为了完善膜下滴灌水稻磷肥施用技术，为膜下滴灌水稻科学施肥提供理论依据。采用单因素随机区组设计，研究了不同磷肥施用方法对膜下滴灌水稻的增产效应、产量结构、氮磷钾养分阶段吸收量和分配特征的影响了，以及氮磷钾肥在土壤中的移动及分布。结果表明，滴灌水稻氮、钾肥随水滴施配合磷肥40%基施+60%滴施增产39.1%；稻株氮、钾养分含量生育前期最高；分蘖期吸收氮磷钾占全生育期30.72%、19.31%和22.32%；氮肥移动性好，磷肥移动性弱，钾肥介于两者之间。滴灌水稻氮肥和钾肥可全部随水滴施，磷肥应采取滴施为主，基施为辅的原则。 |
| 英文摘要: |
| To improve the fertilization technique of phosphorus (P) and provide basic theory for scientific fertilization of rice with drip irrigation under mulch, single factor randomized block design was used to study the effects of different P fertilization methods on the rice yield, yield structure, nutrient uptake and distribution characteristics at different growing stages, as well as the nutrient distribution in soil. The rice yield increased by 39.1% when the P was used at 40% base application and 60% drip fertilization. Plant's N and K contents were the highest at early growing stage. Plant's N, P, K uptake at tillering stage accounted for 30.72%, 19.31% and 22.32%, respectively. The N and P had the highest and weakest mobility, respectively, while K had the mobility between N and P. The N and K could be fully applied with drip irrigation, but the P should be applied mainly (60%) with drip irrigation and partially (40%) with base application. |
|
查看/发表评论 下载PDF阅读器 |
