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irrigation
相关语句
  灌溉
    Study on Crop Response to Soil Water-Salt and Its Modelling for Saline Soil under Water-saving Irrigation
    含盐土壤节水灌溉下作物—水—盐响应关系及模型研究
短句来源
    Crop Drought Resistance Study under Insufficient Irrigation Conditions with the Method of Tritium Water
    氚水示踪法研究非充分灌溉条件下作物耐旱性
短句来源
    EFFECT OF IRRIGATION WATER QUALITY ON SOIL CHEMICAL CHARACTERISTICS AND CROP GROWTH
    灌溉水质对土壤化学特征和作物生长的影响
短句来源
    REACTIONS AND EXCHANGE OF IONS IN MINERALIZED IRRIGATION WATER-SOIL SYSTEM
    矿化灌溉水-土壤系统中离子反应和交换
短句来源
    The experiment included five treatments, in which controlled the mineralization degrees of irrigation water were 1.1 dS/m(K1), 2.2 dS/m(K2), 2.9 dS/m(K3), 3.5 dS/m(K4) and 4.2 dS/m(K5), respectively.
    试验采用5个水平的微咸水灌溉处理:电导率分别为1.1dS/m(K1),2.2dS/m(K2),2.9dS/m(K3),3.5dS/m(K4)和4.2dS/m(K5),重复3次,按随机区组布置。
短句来源
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  灌水
    The data showed that water content of the surface layer of two observation point in ridge section was 65% and 66% of field capacity before irrigation,respectively,while increase to 73% and 80% after 144 hours(6 d) and to 78% and 79% after 408 hours(17 d) because of the furrow water's lateral infiltration after irrigation.
    试验数据显示,在本试验条件下,垄背剖面的两个观测点表层,灌水前其含水量仅为田间持水量的65%和66%,灌水后垄沟水分的侧向入渗,144 h(6 d)分别达到田间持水量的73%和80%,408 h(17 d)达到田间持水量的78%和79%。
短句来源
    The experimental results indicate that irrigation quota has the less influence on the yield.
    研究表明不同灌水定额 (375 ,5 2 5 m3 / hm2 )对产量的影响较小 ,这主要与该地的土壤结构有关 ;
    Study on Soil Water Movement in Cotton field under CN Irrigation
    CN灌水条件下田间棉花土壤水分运动数值分析
短句来源
    Conformation of Optimal Irrigation During Course of Gypsum Improving Basified Soil ——Select 20 cm as Planning Improvement Layer
    石膏改良碱化土壤过程中最佳灌水量的确定——选定20cm为计划改良层
短句来源
    Influence of Irrigation and Coverage on Soil Moisture and Growth of Pepper
    黔中地区灌水量与地被物对土壤水分和辣椒生长的影响
短句来源
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    An Optimal Irrigation Model for Prevention of Soil Salinization
    防治土壤盐碱化最优排模型
短句来源
    There is more 127.5kg/666.7m2 product of cotton in the drop irrigation under plastic film than in the soft pipe irrigation under plastic film.
    棉花膜下滴平均单产(籽棉)比棉花膜下软管平均单产(籽棉)多127.5kg/666.7m2。
短句来源
    A preliminary study of soil permeability characteristics under sewage irrigation
    污条件下土壤水渗透特征初探
短句来源
    Study on the Field Soil Salt Content Dynamics under Conditions of Irrigation and Drainage in Arid Areas
    干旱区排条件下田间土壤盐分动态分析
短句来源
    Systemic study on nutrients in irrigation desert soils of Gansu Province
    甘肃省漠土养分的研究
短句来源
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  “irrigation”译为未确定词的双语例句
    The Distribution and Movement of Soil Nitrogenous Formsin Soil Profile under Irrigation Water
    水分淋洗下土壤各形态氮在剖面中的分布与移动
短句来源
    Research on Technology of Seepage Irrigation Water Supplementation Plus Mulching in Rainfed Land Orchards and Its Application
    旱地苹果园渗灌补水加覆盖技术研究与应用
短句来源
    Corn Growth as Affected by Plastic Cover Under Drip Irrigation Condition in the Desert
    Corn Growth as Affected by Plastic Cover Under Drip Irrigation Condition in the Desert
短句来源
    The phosphor consistency varieties are 25~30mg/kg and 22~26mg/kg according to drop irrigation under plastic film and soft pipe irrigation under plastic film respectively among the upright soil section of 0~30cm.
    结果表明,在土壤中下渗(0~30cm),膜下滴灌磷的浓度与膜下软管磷的浓度分别为25~30 mg/kg和22~26 mg/kg;
短句来源
    The phosphor consistency variety is 9~25mg/kg and phosphor element lateral pervasion range is 0~10cm in soil in drop irrigation under plastic film.
    膜下滴灌条件下磷在土壤中侧渗范围为0~10cm,磷的浓度为9~25mg/kg;
短句来源
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  irrigation
Characteristics of root growth in a fast-growing and high-yield poplar plantation under subsurface drip-irrigation
      
'I-214') were studied under two contrasting conditions, subsurface drip-irrigation (SDI) and normal irrigation (CK), on the sandy soil of Chaobai River, Beijing.
      
The Dabieshan District is a main ecological area with a function of soil and water conservation where seven large reservoirs and irrigation systems of the Pishihang are distributed.
      
Spraying wheat seedlings with these extracts, in contrast to the irrigation of soil, markedly diminished infection in plants with powdery mildew.
      
Since infiltration arises as a result of irrigation or input from atmospheric water, it actually acts in certain seasons of the year and not all year long.
      
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An investigation was made on soil and water conservation work in the mountainous areas in part of communes and brigades in the five counties of Chaoyang District. Experiences were derived from a large amount of data. They can be summarized in three combinations and five changes, that is, combining soil and water conservation with water conservancy projects, biological measures with engineering projects and large projects with medium and small ones so as to implement step by step the transformation of mountainous...

An investigation was made on soil and water conservation work in the mountainous areas in part of communes and brigades in the five counties of Chaoyang District. Experiences were derived from a large amount of data. They can be summarized in three combinations and five changes, that is, combining soil and water conservation with water conservancy projects, biological measures with engineering projects and large projects with medium and small ones so as to implement step by step the transformation of mountainous area into gardens and forests, the terracing of land in gullies and that on hillsides, the irrigation of cultivated land and the formation of a communication line network. This is the only way which will lead the population in Chaoyang District to prosperity.

本文对朝阳地区五个县的部分社队以水土保持为中心的山区建设进行了重点调查研究,从大量的丰富的实际资料中总结出“三结合五化”经验,即坚持水土保持与水利建设相结合,生物措施与工程措施相结合,大巾小工程相结合,以逐步实现山区园林化、沟壑川台化,坡地梯田化、耕地灌溉化和交通路网化。这也是朝阳地区广大人民由穷变富的必经之路。

The semi-arid area of northwestern Liaoning province is located in119°-123°30′N., 40°30′-43°N.. Average annual rainfall is 400-500mm from northwestern part to southeastern part. There were 300 mmmore or less rainfall per year only from 1980-1982. Total annualevaporation is fourfold than annual rainfall. Average annual tempera-ture is 7-9°c.≥10°c temperature is 3200°-3600°C. The crop growingperiod is 130-160 days. The soil types are Yellow-white soil, Brownsoil and Sandy soil. There are 17 million mu of farm...

The semi-arid area of northwestern Liaoning province is located in119°-123°30′N., 40°30′-43°N.. Average annual rainfall is 400-500mm from northwestern part to southeastern part. There were 300 mmmore or less rainfall per year only from 1980-1982. Total annualevaporation is fourfold than annual rainfall. Average annual tempera-ture is 7-9°c.≥10°c temperature is 3200°-3600°C. The crop growingperiod is 130-160 days. The soil types are Yellow-white soil, Brownsoil and Sandy soil. There are 17 million mu of farm land, (1.13 mil-lion hecters), which are 70% in hillside and 30% in the plain.Based on its natural environment, ecolegical conditions. existingproductive capacity of agriculture and long-term practical experience,some ways of reforming farming system were discussed.1. Controlling water and soll erosion through afforestation andgrass-growing is a reliable base of farming system reform. Yield per unitarea and soil organic matter content have double where afforastation waspersisted in and a proper ratio between crop and grass was kept.2. It is essential to establish a soil tillage system for drought re-sistant and controlling wind and water erosion mainly changing frequenttillage to minimum tillage, harrowing and rolling during winter andearly spring to preserve soil noisture.3. It is an effective way of readjusting crop proportion in dry far-ming area to stabilize and increase yield and income by expanding theareas of drought-resistant crops such as millet, sunflower, sweet potato,etc. and increasing apprepriately the areas of fibre crops in irrigatedland.4. Dry land irrigation is a favorable measure to increase yield. Butthe water resource is unsufficient in this area. Irrigation during winterand early spring, storing up the soil water with tillage and utilizing itduring stress season, is an effective measure to overcome spring drought.

辽宁省西北部半干旱地区是广阔的欧亚中纬度干旱、半干旱地区的东缘南段。总面积约为2.81万平方公里,占全省总土地面积的20%左右,共有耕地1700万亩;平均每人占有耕地3~10亩以上,是该省人少地多的地区。 全区地势西高东低。年平均气温在7~9℃之间,年≥10℃积温在3200℃~3600℃之间,无霜期130~170天,年日照时数2400~3000小时,太阳年辐射量在130大卡/平方厘米·年左右。年降水量在500毫米左右。作者分析了七个县20多年的年降水量与粮食亩产量的关系,指出:年降水量不足400毫米,则亩产量明显下降;当年降水量小于300毫米时,则严重减产。朝阳县29年的资料,年降水量小于400毫米的共有7年,其亩产量都在180斤以下。 本区耕作制度改革的主要途径是: 1、造林种草,防止水土流失;改广种薄收为精耕细种、少种,高产多收。 2、确立防旱、防风蚀、防水蚀的“三防”土壤耕作制。 3、扩大抗旱作物、增种经济作物,调整作物布局,作到稳中求高,增产增收。 4、发展灌溉是提高产量的有效途径。

The regime of unsaturated soil moisture is an important part of the runoff cycle in the Experimental basin. The prospect of using the neutron scattering method for soil moisture research in Expermental basin is studied, The patterns of spatial distribution of soil moisture are given. The method of field calibration is suggested, The possibility of using the measured data for Estimating the Elements of water balance in unsaturated zone, such as actul Evuporation, recharge into groundwater, infiltration ect, is...

The regime of unsaturated soil moisture is an important part of the runoff cycle in the Experimental basin. The prospect of using the neutron scattering method for soil moisture research in Expermental basin is studied, The patterns of spatial distribution of soil moisture are given. The method of field calibration is suggested, The possibility of using the measured data for Estimating the Elements of water balance in unsaturated zone, such as actul Evuporation, recharge into groundwater, infiltration ect, is primarily studied. A bealth report for the worker who has used the soil moisture device for two years is listed here. After using the soil moisture device many times, We realized that this kind of technique is the most active means. In studing the conversion of the water balance in Experimental basin, such as the surface water. Soil moisture and groundwater and in research on irrigation and druinage in agriculture field as well. It is safe for human being, if we haule it properly.

非饱和带土壤水分状况在实验流域研究中占相当重要部分。本文作者研究了中子散射方法在实验流域应用途径,提出了流域土壤水分面分布的型态分类,野外率定方法。在文中还初探了包气带水分平衡,包括实际蒸发量,分层补给,下渗等研究的可能性。作者还提出了野外应用中子测水方法与人体健康问题的实例。通过多次用中子测定水分,认为:对实验流域水平衡研究,地表水、土壤水、地下水转化规律研究以及农田灌溉、排水等水文研究,中子散射方法是最具有活力的一类新方法,只要正确使用,对人体健康无害。

 
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