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效益研究
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  benefit study
    Benefit Study of Soil-gathered Terraced Fields
    集土梯田效益研究
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  “效益研究”译为未确定词的双语例句
    The Integrated Benefits from Intercropping on Irrigated Farmland in Semi-arid Area of Guyuan
    固原半干旱灌溉农田作物间作套种的综合效益研究
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    Study on Grille-Ridge Culture and Its Benefits
    格网式垄作及其效益研究
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    Study on Benefits of Different Crop Rotation Patterns in Latored Soil Utilization
    赤红壤不同轮作形式的效益研究
短句来源
    Study on Physiological Effcets and Synthetical Benefit of Spring Maize and Ginger Intercropping
    春玉米生姜间作不同配置方式作物生理效应及综合效益研究
短句来源
    Study on the Initial Soil and Water Conservation Benefits of Yangtiz River Protective Forest
    长江防护林(四川段)初期水土保持效益研究
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  benefit study
Subgroups of the BENEFIT study: Risk of developing MS and treatment effect of interferon beta-1b
      
Cost-benefit study of different application scenarios in teleradiology
      
Laparoscopic and open live donor nephrectomy: a cost/benefit study
      
The cost-benefit study shows that the sampling effort has to be concentrated on unit I of 30 × 30 km to optimize future campaigns, and with a particular stress on the sampling repetitions for Cu, Pb, and Sb.
      
A full cost-benefit study comparing the BHL system to other systems is planned for the coming year.
      
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The integrated benefits of three intercropping models and other four cor-responding monoculture systems with a cultivation scale in irrigated farmlands inGuyuan semi-arid were studied through the field experinents. The results show that theincremental production (the first mean productivity) is raised by 22.28~100. 27%through the intercropping method as compared with the crop monoculture, whilst thetime effectiveness of climate resources involving sunlight. water and heat is raised by 20.44%~53. 48% the utilization,...

The integrated benefits of three intercropping models and other four cor-responding monoculture systems with a cultivation scale in irrigated farmlands inGuyuan semi-arid were studied through the field experinents. The results show that theincremental production (the first mean productivity) is raised by 22.28~100. 27%through the intercropping method as compared with the crop monoculture, whilst thetime effectiveness of climate resources involving sunlight. water and heat is raised by 20.44%~53. 48% the utilization, rate of light energy increased by 5.22%~22.64% theconverted benefit from the supplementary energy increases by 21.42%~32.21%. The e-conomic benefit is increased by a wide margin. The crop intercropping obtains more nu-trients from soils: whilst soil organic matter increases much more. Through the analysisof Hierarchical procedure Method (AHP), the integrated evaluation on different cultiva-tion benefits was made, resulting in the expected benefit value being highest in wheat/maize. The present paper not only analyses the necessity and feasibility in developing theintercropping in the area but also suggests the suitable belts for extension of three mod-els.

在固原半干旱灌溉农田已形成种植规模的3类间作套种模式和相应的4种作物单种,通过设置田间试验,进行综合效益研究表明,间作套种比各自作物单种平均第一性生产力提高22.28%~100.7%;光、热、水气候资源时间效率提高20.44%~53.48%,光能利用率提高5.22%~22.64%,辅助能转换效益增加21.42%~32.21%;经济效益亦大幅度提高。间作套种系统从土壤中摄取的养分虽明显增加,但有机质源却增加更多。运用层次分析法(AHP)对不同种植方式效益进行了综合评价,3类间作套种模式中,效益期望值以小麦/玉米最高。此处还分析了该区发展作物间作套种的必要性和可行性,提出了3类模式各自的适宜推广区域。

To check the large area preserved by soil and water conservation measure is the bases to analyse and calculatethe benefits reducingrunoff and sediment by the measure. This paper has checked the true areas preserved byfourcontrol measures of terraces,flatland.forest.grass land in both 14 counties ofwest Shanxi praince and 8 counties ofeast Gansu province on the hilly and gully areil of loess plateau in the middle reaches of the Yellow River by use ofthe results of detailed land survey. The prexervation rata of...

To check the large area preserved by soil and water conservation measure is the bases to analyse and calculatethe benefits reducingrunoff and sediment by the measure. This paper has checked the true areas preserved byfourcontrol measures of terraces,flatland.forest.grass land in both 14 counties ofwest Shanxi praince and 8 counties ofeast Gansu province on the hilly and gully areil of loess plateau in the middle reaches of the Yellow River by use ofthe results of detailed land survey. The prexervation rata of each control measures has been obtained in broad regionin the above two types of area. The rate has been checked by the result of typical investigation in west Shanxiprovince.A realible basic data has been set for the study of benefits to reduce runoff and sediment by the controlrneasures in the middle reaches of the Yellow River.

对大面积水土保持治理措施的保存面积进行核实是分析计算水土保持减水减沙效益的基础。笔者通过应用土地详查成果,对黄河中游黄土丘陵沟壑区的晋西北14县及黄土高原沟壑区的陇东8县(市)进行了梯田、坝地,造林、种草措施保存面积的核实,得出了黄河中游两个不同类型区的大面积各项水土保持治理措施的保存率,并用晋西典型调查进行验证,为黄河中游地区水土保持措施减水减沙效益的研究提供了可靠的基本数据。

Four crop rotation pattems were adopted to test the benefits of copping systems and the changes in latored soil fertility The results show that there are differences in the average annual biomass and in tie rations of production value to investment of different rotations;and that soil fertility is evidently enhanced,and soil microbiological and physical properties are improwed by the rotations except the pure planting of Taiwangrass". By comparison, the rotation that can brings about the optimum benefit was...

Four crop rotation pattems were adopted to test the benefits of copping systems and the changes in latored soil fertility The results show that there are differences in the average annual biomass and in tie rations of production value to investment of different rotations;and that soil fertility is evidently enhanced,and soil microbiological and physical properties are improwed by the rotations except the pure planting of Taiwangrass". By comparison, the rotation that can brings about the optimum benefit was selected.

赤红壤不同轮作形式的效益研究吴锦暖,程汝饱(广东省土壤研究所,广州slthe)StudyonBenefitsofDifferentCropRotationPatternsinLatoredSoilUtilization.¥WuJinnuanandCh...

 
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