Know how much water is needed to refill the root zone during irrigation and plan fertigation accordingly.
要了解在灌溉时灌满根区需要多少水，并据此来制定灌溉施肥计划。
It is concluded that the HYDRUS-2D software can be used to implement water and nitrate transport in soil under drip fertigation.
因此，HYDRUS - 2d软件可以作为预测滴灌施肥灌溉条件下水分和氮素在土壤中运移的有效工具。
One of these technologies is fertigation, which is the direct application of water and nutrients to plants through a drip irrigation system.
文中介绍的一种灌溉技术叫做施肥灌溉，通过滴流灌溉系统把水和养分供给作物。
The research situation on water and fertilizer transport in soil under fertigation through drip irrigation systems is reviewed in this paper.
对滴灌施肥灌溉条件下水分和养分运移的研究进展进行了总结。
Fertigation by drip irrigation as an advanced technology to control the supply of water and nutrients has been applied by other countries in recent years.
滴灌施肥作为一种先进的水分调控技术，近年来国外已开始广泛采用，但对滴灌施肥条件下肥料养分在土壤中迁移转化规律的了解尚十分有限。
Soil column method was used to study the characteristics of the movement, transformation, and leach of urea-N in soil added by different ways of the fertigation.
采用室内土柱模拟试验方法，研究了不同灌溉施肥方式下尿素态氮在土壤中的迁移、淋溶和转化特征。
In this paper, experimental results of the influence of various fertigation depth on growth, dry matter partition, yield and water use efficiency of cron are presented.
用土柱管栽试验方法研究了不同灌溉施肥深度对夏玉米生长发育、地上地下部分同化物分配、产量和水分利用效率的影响。
Root length density varied with fertigation frequencies, and the ratio of root length for different soil layers to the total root length in the profile varied with fertigation strategies.
施肥频率对根密度的影响主要是引起各土层根密度大小的变化，运行方式则对各土层根长占整个剖面根长总和的比例产生影响。
Root length density varied with fertigation frequencies, and the ratio of root length for different soil layers to the total root length in the profile varied with fertigation strategies.
施肥频率对根密度的影响主要是引起各土层根密度大小的变化，运行方式则对各土层根长占整个剖面根长总和的比例产生影响。
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