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冀中平原冬小麦-夏玉米一体化节水栽培技术

标题: 冀中平原冬小麦-夏玉米一体化节水栽培技术
英文标题: WATER-SAVING CULTIVATION TECHNIQUES FOR WINTER-WHEAT AND SUMMER-CORN IN THE MIDDLE PLAIN AREA OF HEBEI
作者: 王涛,方日华
英文作者: WAND TAO
出版时间: 1995-01-01
机构: 河北农业大学
关键词: 土壤水,水分利用效率,节水栽培技术,水分胁迫
英文关键词: SOIL WATER EFFICIENTY OF WATER USE WATER-SAVING CULTIVATION TECHNIQUE WATER STRESS
刊名: 灌溉排水
英文刊名: IRRIGATION AND DRAINAGE
ISSN: 1000-646X
卷号: 004
页码: 20-25
分类号: S512.104
摘要: 实验表明:冬小麦的灌水量直接影响下茬玉米的土壤水分;冬小麦耗水量与产量、冬小麦力.夏玉米的总耗水量与产量均呈抛物线关系.因而减少非关键生育期的灌水对产量影响不大.根据天然降水分布规律,选用全生育期90天左右的玉米杂交种,6月20日以前播种,8月上旬抽雄,使主要需水期与降水高峰相吻合,尽量减少夏玉米的灌水.通过作物干旱胁迫试验,找到作物不同生育期的减产系数,为制定节水型灌溉制度提供依据;通过对土壤水分的观测发现,在作物播前、收后土壤内均有部分速效水,充分利用土壤水是节水栽培技术的重要措施之一.实验表明:冬小麦的灌水量直接影响下茬玉米的土壤水分;冬小麦耗水量与产量、冬小麦力.夏玉米的总耗水量与产量均呈抛物线关系.因而减少非关键生育期的灌
英文摘要: Experiments indicate that water application for winter-wheat affects directly the content soil water for Antumn-corn. The relationship between water consumption of winter-wheat and its yield and the relationship between total water consumption of winter-wheat plus Summer-corn and yield are Parabolic, so the impacts on yield by reduced water application in non-crucial growing season is not significant. According to the distribution law of precipitation, corn hybrid strain whose growing season is about 90 day...