Under the irrigation conditions at present, the main limited factor of productivity is soil quality.
在现有灌溉条件下，土壤质量是制约生产力的主导因子。
Irrigation amount of corn is optimized under the existing irrigation conditions, and the water saving method of corn is suggested.
优化了灌区现有灌溉模式下玉米的灌溉量，建立了灌区玉米的节水灌溉模式。
Based on plant growth analysis theory, this paper studied the plant growth characteristics of winter wheat under sprinkler and surface irrigation conditions.
采用作物生长分析的方法，研究了喷灌和地面灌溉条件下冬小麦生长动态的变化规律。
Water consumption and its component of crop water consumption proportion in crop's apiece growing period under different irrigation conditions was different.
不同灌溉水平对各作物及其相应种植方式下的耗水组成比例的影响很大。
Sand, gravel, clay, grass, drains, irrigation and a precise tracing on its slopes and surfaces create the ideal conditions for the sport of baseball at the highest level.
沙、砾石、粘土、草、排水、灌溉和对山坡及其表面精准的监控，使棒球运动的理想条件达到最优化。
The relationship between nitrate fertilizer application and cultivated conditions such as soil fertility, preceding crop, plant density and irrigation etc.
本文对马铃薯经济施肥量与土壤、前作、密度、灌溉等栽培条件的关系进行了定量研究。
The main pollution reasons include the species hydrogeologic conditions, sewage irrigation, landfill of municipal refuse, and regional groundwater drawdown.
最主要的污染原因有：独特的水文地质条件，污灌，砂石坑垃圾回填，及区域地下水位下降。
In these conditions careful management of the irrigation and fertilizer programs is important.
此种条件下细心管理灌溉和施肥计划至关重要。
Water infiltration of water storage pit irrigation is under varying-head conditions.
蓄水坑灌条件下的土壤入渗是在变水头作用下进行的。
Under the conditions of uninterrupted irrigation D_2O and KCL as the tracers traced the kinesis of D_2O, positive and negative ions in the edaphic column.
用同位素d_2o和KCL作示踪物，在间断灌水的条件下，追踪了D_2O和阴、阳离子在土柱中移动的动态。
To supply scientific evidences of saving water, a study was made on effects of different irrigation quota on the growth and yield of spring wheat in field conditions in arid and semiarid regions.
在大田条件下，研究不同灌溉量对干旱半干旱地区春小麦生长及产量构成的影响，以期为春小麦节水灌溉提供理论依据。
The uniformity of hereditary transmissibility among different parents and different traits of the same parent or same trait was different under irrigation and rain-fed conditions.
不同亲本间及同一亲本不同性状或同一性状的遗传传递力的整齐度在灌溉条件下和雨养条件下相异。
Cotton canopy structure and yield was determined and analyzed in different water and fertilizer conditions under mulch drip irrigation (MDI) with Xinluzao no. 7 as the test material.
以新陆早7号为试材，进行了不同水肥条件下膜下滴灌棉株群体冠层结构测定和产量结果分析。
Under the conditions of this experiment, the increase of additional organic carbon content is not in advantage of the removal of nitrogen in waste water irrigation system.
在本文特定作物和土壤条件下，增加灌溉原污水中的有机碳含量将不利于污灌系统对氮素的去除。
An experiment was carried out to study changes in soil moisture in winter wheat field under the conditions of drip irrigation, furrow and ridge planting.
试验在池栽条件下研究了滴灌与垄沟耕作条件下冬小麦田间土壤水分的动态变化。
According to the characteristics of the irrigation district, this article has introduced the methods and measures of sediment disposals for the WSI based on the topographical conditions.
本文根据灌区特点，提出了从灌区地形、地理位置出发，探讨了引黄节水灌溉泥沙处理的方法和措施。
Under field experimental conditions, two treatments of irrigation and non-irrigation were set for two sugarcane cultivars GT11 and ROC20, respectively.
选用甘蔗桂糖11号和新台糖20号，设灌溉和不灌溉两种处理，在大田进行试验。
The adaptation of rice root resistance drought under different environments conditions would be another main part to non-full irrigation.
因此，进一步探讨根系抗旱能力在不同环境条件下的适应性变化，将是节水农业研究的一个方向。
Under conditions of shortage of fresh water, a study of possible use of saline water for irrigation is of practical significance.
在淡水资源不足情况下，研究利用高矿化水灌溉的可能性具有重要的现实意义。
The weight of roots and above ground parts and the seed cotton yield increased at irrigation, more fertilizer applied or early sowing conditions.
灌水、重肥与早播处理棉株根重、地上部重及籽棉产量等均增加。
Under field production conditions, the experiment was made to research the effect of water-nitrogen coupling on cotton development and yield under drip irrigation in 5 field spots.
通过在5个试验点田间试验研究水氮耦合对棉花生长和产量的影响。
Tarim irrigation area is located in the warm-temperature zone with plenty of light, heat, soil and water resources which are favorable conditions for the development of agriculture.
本文根据土地生产潜力和人口承载力计算模型 ，确定在不同生活水平要求下塔里木灌区适当的人口规模 ，为塔里木灌区农业资源的合理适度开发提供参考依据。
The factors causing soil salinization include natural factors such as climate, hydrological and geological conditions, and human-made factors, such as irrigation patterns and cultivating system.
盐渍化土壤类型主要为典型盐土、沼泽盐土、碱化盐土和干旱盐土。
Given the special nature of agricultural irrigation and China's national conditions, the wireless remote control technology used in the irrigation systems has a very vast prospect.
鉴于农业灌溉的特殊性和我国的国情，在灌溉系统中采用无线遥控技术有着广阔的前景。
The result shows that under the same conditions, low-discharge drip irrigation strap's emitter discharge has a little change along the distance.
试验结果表明：在同一坡度及同一铺设长度下，不同规格的滴灌带滴头流量随压力的增大而增大；
Micro-climate of Winter Wheat Field under the Conditions of Irrigation and Straw Mulching;
指出建立舒适的小气候环境是改善客车条件的一个重要方面。
Micro-climate of Winter Wheat Field under the Conditions of Irrigation and Straw Mulching;
指出建立舒适的小气候环境是改善客车条件的一个重要方面。
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