Crop yield and water use efficiency(WUE)in a wheat-maize double cropping system are influenced by short and unevenrainfalls in the North China Plain(NCP).A 2-year experiment was conducted to investigate the effects of irrigation on soilwater balance,crop yield and WUE to improve irrigation use ...
美国农业部在198正在制定一项计划,以巩固其现场服务机构的行政职能(如会计,预算,采购,人事)在国家一级在一个办公室里,被称为支持服务局。 目前,独立行政机构提供给这些机构的支持。 美国农业部命名为这项工作的“行政趋同计划”,或简称为“行政趋同。”该术语也已被用于描述任何美国农业部为了简化,或下一个实体结合,管理功能之一的机构或多种。 ...
A general-purpose machine that processes data according to a set of instructions that are stored internally either temporarily or permanently.The computer and all equipment attached to it are called hardware.The instructions that tell it what to do are called "software." A set of instructions that ...
Crop yield and water use efficiency(WUE)in a wheat-maize double cropping system are influenced by short and unevenrainfalls in the North China Plain(NCP).A 2-year experiment was conducted to investigate the effects of irrigation on soilwater balance,crop yield and WUE to improve irrigation use ...
Crop yield and water use efficiency(WUE)in a wheat-maize double cropping system are influenced by short and unevenrainfalls in the North China Plain(NCP).A 2-year experiment was conducted to investigate the effects of irrigation on soilwater balance,crop yield and WUE to improve irrigation use ...
Crop yield and water use efficiency(WUE)in a wheat-maize double cropping system are influenced by short and unevenrainfalls in the North China Plain(NCP).A 2-year experiment was conducted to investigate the effects of irrigation on soilwater balance,crop yield and WUE to improve irrigation use ...