灌溉的

Two kinds of irrigation strategies, including irrigation up to field capacity and fixed amount based on soil texture, were employed with bubbler irrigation system.

结果表明，传统灌溉方式下，优化氮素处理保证了番茄产量，与传统氮肥处理相比，追施的氮肥数量减少了48%；在番茄的主要生育时期内，采用每次灌溉至田间持水量及固定灌额处理的灌溉量分别比传统灌溉处理减少46%和30%；采用同样指标所推荐的氮肥追施数量也分别减少14%和10%，明显减少土壤–蔬菜体系中氮素的表观损失，减轻了由于过量施氮而对环境造成的影响。

It indicates that emphasis should be put on the following subjects in the future: the determination of field infiltration coefficient and roughness coefficient;the optimal combination of field standard and irrigation technical index ,and the rational ground levelness degree and mode.

对近10多年来地面灌溉水流运动数值模拟方面的国内外研究进展进行了归类整理，并就目前研究中存在的不足和未来急待深入研究的问题进行了探讨，认为在今后的研究中应把地面灌溉入渗参数和糙率的确定问题，不同地区和作物条件下合理的田块尺寸与灌水要素的优化组合研究及经济合理的田间土地平整度及平地模式的研究，长畦分段灌、阶式水平畦灌、覆膜灌溉条件下的水流运动和合理灌水技术指标的研究，浑水灌溉和土壤气阻对地面灌溉水流运动的影响机理研究等作为重点内容。

A new type of light weight and small size machine with sprinkling irrigation and hose irrigation was introduced. The machine's set of remotion and pressure water are provided by a capstan car, and sprinkling irrigation by a sprinkler car.

介绍了一种新型喷灌和软管灌溉两用轻小机组的结构和工作原理，该新型灌溉机组由绞盘车提供行走动力和压力水源，通过喷水车进行喷洒灌溉。

The most common water-conserving irrigation systems are some form5 of drip irrigation (also called micro-irrigation).

最常使用的节水灌溉系统是某种 5 水滴灌溉系统也称作"微灌溉"。

objectiveto provide the scientific foundation for the construction of gap cultivation bases of abrus mollis hance by evaluating the pollution status of soil and irrigation water in abrus mollis hance cultivation base.methodsthe environment quality was appraised by the nemerow pollution index method.resultsthe quality of soil and irrigation water was good, falling in the categories of "clean".conclusionthe quality of soil and irrigation water in abrus mollis hance cultivation base accords with the requirement of gap of chinese medicinal materials.

目的对鸡骨草种植基地土壤、灌溉水污染现状进行评价，旨在为鸡骨草规范化种植基地建设提供科学依据。方法土壤及灌溉水污染现状运用单项污染指数法和内梅罗综合污染指数法进行评价。结果种植基地土壤和灌溉水污染等级均属于&清洁&一级。结论鸡骨草种植基地的土壤和灌溉水质量完全符合《中药材生产质量管理规范》的相关要求。

The research result showed that(1) The reclaimed water used didn't influence the sensory quality of a given turf grass tested;under irrigation of reclaimed water,Festuca arundinacea are the best,followed by Buchloe dactyloides and Zoysia japonica;(2) The influence of different types of irrigation water on growth characters of turfgrass is species-dependence;(3) Irrigation by reclaimed water and fresh+reclaimed water increases Na~+,CEC,and total porosity of the turf soil in comparison to fresh water,and improves soil quality.

结果表明：本研究使用的再生水对所供测试绿化草种的颜色、覆盖度、质地和均匀性无不良影响，再生水灌溉条件下，高羊茅表现出了最强的综合耐污能力，其次是结缕草和野牛草。灌溉水类型对于草坪草的生长指标的影响具有种的特异性。再生水灌溉和&清水+再生水&交替灌溉提高了土壤的阳离子交换量和总孔隙度，有利于土壤物理性状的改善。

DI is the most ideal irrigation indicator as it is very much influenced by soil water potential and less affected by meteorological factors. DI value of zero is probably the best irrigation threshold. MDS is strongly affected by meteorological factors and requires reference MDS under well-irrigated conditions. RT on the other hand is not significantly related with soil water potential. Therefore neither of these variables is suitable as irrigation index.

DI 受土壤水势影响产生变化的趋势明显并受气象因子影响较小，是最理想的灌溉控制指标，可将 DI =0作为灌溉控制临界值； MDS 受气象因子影响强烈，变异性较大，且需要充分灌溉条件下的 DI 作为参考， RT 与土壤水势的相关性不高，因此均不适合单独作为灌溉控制指标。

First, by the allocation of irrigation water directly into the ditch outlet Xiaqi, achieve no water loss, greatly improve the utilization of water; are two irrigation systems, replace the pipe with water furrow, not square, and the right to re-use, reducing the irrigation investment; Three is the use of the gate with the outlet opening to adjust a constant and accurate control of flow into the trench plot, for different soil and different groove specifications Xiaqi can greatly improve irrigation uniformity; four gates are porous pipe irrigation system for the flow tubes, and the blind to cross the flow tube as compared to the wall can reduce the work under stress, and reduce the damage to the opportunity to prolong the service life of thin-walled tube; are five gates to facilitate the installation of irrigation systems, pipes, and, upon request, to fight孔安outlet assembly to ensure the accuracy of positioning with the outlet.

一是灌溉水经配水口直接进入沟畦，实现无输水损失，极大地提高了水的利用率；二是管灌溉系统代替配水垄沟，不占地，且右重复使用，降低了灌溉投资；三是利用配水口的闸板开度来调节准确恒定地控制进入沟畦的流量，适用于不同土质和规格不同的沟畦，可大大提高灌水均匀度；四是闸管灌溉系统为多孔出流管，与等过流量的盲管相比，可降低管壁承受的工作压力，并减少受损机会，从而延长薄壁管的使用寿命；五是闸管灌溉系统安装方便，并可根据要求打孔安装配水口，确保配水口定位的准确性。

One of these technologies is fertigation, which is the direct application of water and nutrients to plants through a drip irrigation system.

描述：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。

Super hybrid rice Gangyou 527 was used to investigate the effects of three irrigation regimes(submerged irrigation, dry cultivation, the treatment W2 that damp irrigation before booting stage, shallow irrigation at booting stage, wetting-drying alternation irrigation from heading stage to mature stage) and different amounts of N application on photosynthetic rate, activities of nitrate reductase, glutamine synthetase, glutamate synthase, endopeptidase in flag leaves, bleeding intensity in basal internodes and grain yield during grain filling, and studied correlations among the photosynthesis, nitrogen metabolism enzyme activity and root vigor at this stage.

以超高产杂交稻冈优527为材料，通过淹水灌溉、湿润灌溉＋浅水灌溉＋干湿交替灌溉（W2处理）和旱种3种灌水处理及不同的施氮量，研究水氮互作对结实期水稻剑叶光合特性、氮代谢关键酶及根系活力等生理性状和产量的影响，并探讨各生理指标间的相互关系。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。