控制性作物根系分区交替灌溉的理论与试验

本文对控制性根系分区交替灌溉的概念及其理论依据进行了论述，并通过盆栽玉米、大田玉米、梨树根系分区交替灌溉等试验对控制性作物根系分区交替灌溉进行了较为系统和深入的研究。试验结果表明，采用控制性根系分区交替灌溉，可以达到以不牺牲作物光合产物积累、减少棵间蒸发和作物蒸腾耗水而节水的目的，灌溉水利用效率和植物水分利用效率明显提高，它是一种切实可行的灌水技术，可进一步在干旱缺水地区推广应用。

Controlled root-divided alternative irrigation --Theory and Experiments

This paper discussed the conception and theoretical basis of controlled root-divided alternative irrigation(CRDI) and studied it systematically through potted maize,field maize and peach roots-divided irrigation.The results show that CRDI could save irrigation water under the condition of not to reduce the yield but the luxury water used,since the evapor-transpiration can be reduced greatly.At the same time,the irrigation water use efficiency is also decreased.It demonstrates that CRDI is a feasible irrigation technique suitable for arid area.