Growth and yield of rice as affected by transplanting dates and seedlings per hill under high temperature of Dera Ismail Khan, Pakistan

作     者：BALOCH Mohammad Safdar AWAN Inayat Ullah HASSAN Gul 

作者机构：Agricultural Research Institute Dera Ismail Khan 29050 NWFP Pakistan Department of Agronomy Faculty of Agriculture Gomal University Dera Ismail Khan 29050 NWFP Pakistan Department of Weed Science NWFP Agricultural University Peshawar 25130 NWFP Pakistan 

出 版 物：《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 (浙江大学学报（英文版）B辑（生物医学与生物技术）)

年 卷 期：2006年第7卷第7期

页      面：572-579页

核心收录：

学科分类：0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 1001[医学-基础医学(可授医学、理学学位)] 0905[农学-畜牧学] 0906[农学-兽医学] 09[农学] 0901[农学-作物学] 

主　　题：水稻 移植时间 秧苗 叶面积指数 净吸收率 

摘      要：Studies were initiated for two consecutive years to find out the effect of time of transplanting and seedlings hill?1 on the productivity of rice in Dera Ismail Khan district of North West Frontier Province (NWFP), Pakistan. The experiment was laid out in a randomized complete block design with split plot arrangements. Main plots consisted of four transplanting dates viz. 20th and 27th of June and 4th and 11th of July while sub-plots contained 1, 2, 3 or 4 seedlings hill?1. Among transplanting dates, June 20th planted crop gave highest paddy yield and net return with 1 seedling hill–1. It explains that the use of more seedlings hill?1 not only adds to cost but is also a mere wastage of natural resources. Based on research findings, we conclude that the use of 1 seedling hill?1 is most appropriate for timely sowing otherwise 4 seedlings hill–1 should be used to compensate for the yield gap in late transplanted rice.