灌溉

This paper studied the effects of irrigation quantity and periodicity on impatiens growth in greenhouse by the measure of orthogonal test with modes of trickle, micro-sprinkling and manual irrigations, and achieved t.

为此，通过滴灌、微喷灌和人工点灌3种灌溉模式，利用正交试验方法，研究了灌水量和灌水周期对温室中凤仙生长的影响，得出了3种灌溉模式的最优灌水量和灌水周期。

The water delivery scheduling problems of multilevel optimal irrigation canal system can be solved, which meet the requirement of irrigation management.

2针对多级灌溉渠系配水的问题，基于大系统分解协调的思想，建立了一种解决多级灌溉渠系配水优化编组问题的模型。

Thearticle gives the method of confirming the insufficient irrigational rule of three mainkinds farm crop which are wheat, corn, cotton of big farmlands, furthermore comparingthe effect of saving water to increase production under different rule of insufficientirrigation.

文章给出了小麦、玉米、棉花等三种主要大田作物的非充分灌溉制度的制定方法，并对不同的非充分灌溉制度的节水增产效果进行了比较。

The reference crop evapotranspiration(ET0) in Guanzhong region was calculated with the Penman-Monteith equation. The change characteristics of meteorological factors and ET0 over year were analyzed. The regressing relation between ET0 and geography factors was established. Space distribution of ET0 based digital elevation model was obtained. The water consumption model of main cropes was established using the crop cofficient method. The irrigation water requirement of main crop and it's space distribution based DEM under the different precipitation probability was obtained, which advanced the calculation precision of ET0 from spot scal to regional scal. The concept of water consumption under the irrigational scal was proposed. The water consumption model of different water user and model of groundwater balance based on the water consumption of Baojixia irrigation district was established. Which can refects the relation between water utilization, water consumption and change amount of groundwater resouces.

深入分析了关中地区气象要素的变化趋势，用Penman-Montainth 公式计算了参考作物蒸发蒸腾量（ET0），建立了ET0与地理要素的多元回归关系，获得了基于数字高程模型DEM的关中地区ET0的空间分布图；用作物系数法建立了关中主要作物生育期耗水模型，获得了主要作物在不同降雨条件下的灌溉需水，以及基于DEM的主要作物灌溉需水空间分布图，提高了作物蒸发蒸腾量由点到面尺度转换过程中的估算精度；界定了灌区尺度的耗水量的概念，包括用水耗水和非用水耗水，建立了灌区耗水量计算模型及基于耗水量变化的浅层地下水均衡模型，能较好地反映灌区引水量、耗水量及地下水蓄变量之间的内在关系。

The policy in this period was a Laissez-faire policy.

这一时期，国会主要通过几个土地法案来间接刺激西部农场主发展灌溉农业，因而发展西部灌溉业政策从整体上来说是一种自由放任政策。

This paper discusses the status of low-pressure pipeline irrigation technology related to the concept and main content .

本文针对这一现状介绍了低压管道灌溉技术的相关概念和主要内容，并以山西省阳高县大白登镇基本农田整理项目为例，详细介绍并分析了在土地整理项目中低压管道灌溉系统的规划设计方法以及相关水力计算。

Malvasia grafted on rootstocks 3309C, 420A and 110R, respectively, was planted, and the physiological and biochemical responses of these scion/rootstock combinations to bilateral alternative irrigation and unilateral irrigation were studied.

利用自制木箱对嫁接在3309C、420A和110R砧木上的玛瓦斯亚葡萄进行双侧根区交替灌溉和单侧灌溉两种水分胁迫处理，以探讨不同葡萄砧穗组合对干旱的适应能力。

By using self-made wooden boxes with two separated zones, the grapevine Vitis vinifera cv. Malvasia grafted on rootstocks 3309C, 420A and 110R, respectively, was planted, and the physiological and biochemical responses of these scion/rootstock combinations to bilateral alternative irrigation and unilateral irrigation were studied.

利用自制木箱对嫁接在3309C、420A和110R砧木上的玛瓦斯亚葡萄进行双侧根区交替灌溉和单侧灌溉两种水分胁迫处理，以探讨不同葡萄砧穗组合对干旱的适应能力。

On tne basis of reviewing the metnod of calculating firm energy of draw-down period and considering the conflicts between the hydropower and irrigation water requirement, this paper proposes a modificative method, applying multipurpose decision of system engineering combined with incremental dynamic programing with analysis to obtain an optimum program which would yield the maximum economic benefit.

本文针对水库设计供水期保证电量计算方法存在的问题，和发电与灌溉用水等矛盾，应用系统工程多目标决策，和增量动态规划与分析相结合的方法，提出了能使电力系统基建投资省、保证电量大、和灌溉用水多的综合利用效益高的优化方案；同时还得出了具有长期予报的水库供水期最优调度的一般规律，应用该规律能迅速方便地得出最优方案。

For instance, we repeatedly warn the farmers not to irrigate, yet they secretly go to the vineyard and irrigate at night because they think the soil is too dry.

例如，即便我们再三警告他们不要灌溉葡萄园，这些农户仍然会在夜间偷偷灌溉。从传统农业的"经验"来看，葡萄园的土壤太干了；同时，我们的庄园又在不断的向农户强调，干燥的土壤有利于葡萄的生长。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了