福建农业学报2012，Vol.27Issue(7)：764-767,4.
翻压紫云英绿肥下氮钾肥运筹方式对单季稻生长的影响
Responses of Single Cropping Rice's Growth to Different Period and Ratio of Reducing Nitrogen and Potash Application after Turning Astragalus sinicus Green Manure into Filed
摘要
Abstract
A three-year experiment was conducted to study the responses of single cropping rice s growth to different period and ratio of reducing nitrogen (N) and potash (K) application after turning Astragalus sinicus green manure to filed. The results showed that, after turning Astragalus sinicus 18 000 kg · hm-2 into field every year, the yield of rice grain was the highest in N and K fertilizer treatment with base fertilizer : tillers fertilizer : panicle fertilizer = 0 : 5 : 5, and respectively increased by 3. 6%, 4. 9% , 3. 0% and 6. 1% than that of treatments with base fertilizer5 tillers fertilizer : panicle fertilizer = 3 :4:3,5:5:0,0:7:3 and 0 : 10 : 0, and the differences showed significant. The main economic characters which improved the rice yield was the increase of the setting grains per panicle. This may be the enough nutrient offered to single cropping rice in seeding stage after turning Astragalus sinicus manure into field. N and K fertilization application in retral growing period and the increase of panicle fertilization ratio could significantly improve the yield of rice grain.关键词
紫云英/绿肥/氮肥/钾肥/水稻/产量Key words
Astragalus sinicus/ green manure/ nitrogens potash/ rice/ yield分类
农业科技引用本文复制引用
王飞,林诚,李清华,何春梅,林新坚,李昱..翻压紫云英绿肥下氮钾肥运筹方式对单季稻生长的影响[J].福建农业学报,2012,27(7):764-767,4.基金项目
公益性行业(农业)科研专项(201103005) （农业）
福建省科技计划项目——省属公益类科研院所基本科研专项(2011R1024-6) （2011R1024-6）
福建省农业科学研究野外观测站(2009J1002) （2009J1002）
