【作者】 杨从党； 李刚华； 戈芹英； 丁玉清； 李贵勇； 徐世林； 朱丽芬； 任效忠； 董广；

【Author】 YANG Cong-dang~1 LI Gang-hua~2 GE Qin-ying~3 DING Yu-qing~4 LI Gui-yong~1 XU Shi-lin~5 ZHU Li-fen~6 REN Xiao-zhong~7 DONG Guang~8 1 Institute of Food Crops,Yunnan Academy of Agricultural Sciences,Kunming,650205,Yunnan Province;2 Nanjing Agricultual University,Nanjing,210095,jiangsu Province 3 Institute of agricultural science and technology of Longyang Section,Baoshan city,67800,Yunnan Province;4 Agricultural service station of Jinniu Township,Binchuan County,Dali state,671600,Yunnan Province;5 Center of agricultural science and technology of Yiliang County,Kunming 652100,Yunnan Province;6 Center of agricultural science and technology of Yongsheng county,lijiang City,674200,Yunnan Province;7 Center of agricultural science and technology of Mile County,Honghe State,652300,Yunnan Province;8 Institute of Agricultural Science and Technology of Yuxi city,653100,Yunnan Province

【机构】 云南省农业科学院粮食作物研究所； 南京农业大学； 保山市隆阳区农推所； 宾川县金牛镇农业综合服务站； 宜良县农技推广中心； 永胜县农技推广中心； 弥勒县农技中心； 玉溪市农科所；

【摘要】 在云南省6个不同的生态稻作区,以当地主栽品种为材料,进行了精确定量栽培 (PQC)、精确施肥(PQM)与常规栽培法(CK)的对比试验。结果表明：精确定量栽培和精确施肥方法都有利于水稻增产,这两种方法都是在稳定穗数的基础上,提高穗总粒数、穗实粒数和千粒重。氮肥后移既有利于提高产量,又有利于提高氮肥的利用效率。更多还原

【Abstract】 Field contrast experiments were carried out under 6 different kind of rice entironment in Yunnan province.The main rice varieties were planted by precise and quantitative cultivation (PQC),precise and quantitative management of nitrogen (PQM) and traditional cultivation (CK), respectively.Comparing with the traditional cultivation,more grain yield was got by PQC and PQM. The main idea and method of PQC in rice is on the base of condign panicle number to increase the total and filled spikelets number per panicle,and grain weight.Reducing the base and tillering ratio of nitrogen and increasing the panicle ratio is favor of increasing rice grain yield and utilize efficiency of nitrogen.更多还原