【摘要】 为保证河套灌区田块平整的顺利进行与可操作性,针对灌区小麦畦田改造技术进行了研究。得出畦长45 m,畦宽分别为5.0 m和7.5 m的畦田在获得较高产量的条件下,水分利用效率由现状的1.10 kg/m3分别提高到1.31 kg/m3和1.27 kg/m3,从田间试验角度论证了对灌区较大规格畦田进行缩块改造的必要性。更多还原

【Abstract】 This paper research on the technology aims at wheat border farmland reform in order to guaranteeing that the farmland level is progress and maneuverability.It can be concluded that water productivity ratio increase separately from present 1.10 to 1.31 kg/m3 and 1.27 kg/m3 on the condition of that farmland’s length is 45 m and wide are 5.0 m and 7.5 m,and the necessity that the sizes of large border should be reduced in irrigated area was demonstrated from the field test aspect.更多还原