共查询到19条相似文献，搜索用时 234 毫秒
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中耕深松技术保水能力试验研究 总被引：5，自引：0，他引：5
阜新属于半干旱地区,在农业生产中应采取节水措施.中耕深松属于机械化旱作农业节水技术,是保持耕作技术的基本要点之一.通过中耕深松技术的田间作业实验,验证了中耕深松技术的蓄水保墒作用,指出中耕深技术应在阜新地区推广应用. 相似文献
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孙东越 《农业机械化与电气化》2007,(6):31-32
阜新属于半干旱地区,在农业生产中应采取节水措施。中耕深松属于机械化旱作农业节水技术,是保持耕作技术的基本要点之一。通过中耕深松技术的田间作业实验,验证了中耕深松技术的蓄水保墒作用,指出中耕深技术应在阜新地区推广应用。 相似文献
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1作业种类与技术(1)保护性耕作。保护性耕作是指秸秆残茬覆盖、免少耕播种、深松、杂草控制与病虫害防治等4项机械化生产技术。(2)旱作节水。包括耙耱镇压保墒、地膜覆盖栽培、垄作(沟灌)和节水灌溉 相似文献
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阐述了保护性耕作技术在改革传统农业的耕作方式,对改良土壤性能、增肥地力、蓄水保墒、抑制沙尘暴、节本增效等方面所起的重要作用,说明保护性耕作技术不仅是发展节水农业,促进农业增效和农民增收的重要举措,而且对保护生态环境具有重要意义。 相似文献
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保护性耕作技术是“十五”期间农业部重点推广的项目之一，它具有改良土壤、培肥地力、蓄水保墒、节本增效等作用，不仅是发展节水农业、促进农业增效和农民增收的重要举措，而且对保扩生态环境和促进农业可持续发展具有重要的意义。小麦免耕播种技术是保护性耕作技术的主要技术内容之 相似文献
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水资源匮乏、旱灾频繁成为制约阜新地区农业和农村经济发展的主要因素之一。阐述在阜新地区实施保护性耕作的意义,介绍阜新地区保护性耕作技术发展现状,在总结多年实践经验的基础上,针对阜新地区实施机械化保护性耕作的实际情况,探讨了阜新地区保护性耕作发展的方向。 相似文献
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水资源匮乏、旱灾频繁成为制约阜新地区农业和农村经济发展的主要因素之一。阐述在阜新地区实施保护性耕作的意义,介绍阜新地区保护性耕作技术发展现状,在总结多年实践经验的基础上,针对阜新地区实施机械化保护性耕作的实际情况,探讨了阜新地区保护性耕作发展的方向。 相似文献
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朱建忠 《农业机械化与电气化》2009,(3):194-195
介绍阜新地区实施保护性耕作所取得的成效及保护性耕作项目的运作情况,总结阜新地区几年来推广保护性耕作技术的实践经验,对今后继续加强保护性耕作项目实施和项目管理的措施进行探讨,并展望阜新地区保护性耕作发展的前景。 相似文献
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阜新地区保护性耕作项目实施研究 总被引：1，自引：0，他引：1
介绍阜新地区实施保护性耕作所取得的成效及保护性耕作项目的运作情况,总结阜新地区几年来推广保护性耕作技术的实践经验,对今后继续加强保护性耕作项目实施和项目管理的措施进行探讨,并展望阜新地区保护性耕作发展的前景。 相似文献
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灌溉农区机械化保护性耕作试验分析 总被引：1，自引：0，他引：1
在浇灌农区为期一年的机械化保护性耕作与常规机械耕作对比试验结果表明，机械化保护性耕作技术相对常规耕作技术，可以提高灌溉农区农田土壤含水率和土壤有机质含量，提高农作物单位面积产量，减少农业生产工序和用工投入。 相似文献
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J. A. de Juan J. M. Tarjuelo J. F. Ortega M. Valiente P. Carri n 《Agricultural Water Management》1999,40(2-3):303-313
This paper present a set of solutions for new irrigation transformation in a sub-humid area such as Salvatierra (Alava, Spain). The research is based on the choice of crop rotation (cultivated species and its degree of participation) being able to economically optimise the use of available water for irrigation. Hence, we will be able in helping make decisions to plan, from origin, the transformation of a dry area into an irrigated area. To do this, a model of economic use of water has been used in an area with climatic features very similar to a large part of Europe, representing an interesting scenario compared to the places where the model had not been applied. Crops taking part in this rotation to optimise use of water are mainly vegetables, with high water needs, that coexist together with crops for dryland farming even in conditions of lack of water. Crops for dryland farming allow an interesting diversification of activity as well as an average resource assignment to the farms that make possible to cultivate many farms at a time, which obviously implies socio-economic benefits for the achievements in the zone. 相似文献
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赵少军 《国际沙棘研究与开发》2017,(1)
通过设置垄作全膜、垄作半膜、平作全膜以及平作半膜4个覆膜耕作处理,采用加权灰色关联模型评价不同覆膜耕作方式的优劣.结果表明:垄作全膜处理保水保温效果明显;干旱条件下,耕作措施较覆膜方式对地温的影响更为明显;而在水量充沛条件下,覆膜方式则表现出对地温更显著的影响.田间起垄耕作结合全膜覆盖的种植方式,有利于干物质的积累,促进滴灌条件下玉米产量的形成,同时提高水分利用效率,为干旱区农业节水和玉米高产提供了技术依据. 相似文献
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李显峰 《农业机械化与电气化》2011,(6):111-112,115
彰武县是典型的北方旱作农业区,旱灾频繁,全县绝大部分耕地无水浇条件。详细介绍秸秆覆盖及高留茬、机械化深松及重耙压、地膜覆盖3项技术的内容和效果,通过多种作业模式的机械化旱作节水技术集成示范基地建设项目,探索旱作条件下依靠天然降水实现大面积旱作农田保土保肥、抗旱保水节水、增产增收的有效途径。 相似文献
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受种植习惯和适宜种植面积限制,阜新地区花生重茬种植现象较为普遍,对花生产量和品质影响很大。分析重茬花生减产的主要原因,提出相应的技术措施,为阜新地区摸索重茬花生高产栽培技术提供理论参考。 相似文献
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An approach for precision farming under pivot irrigation system using remote sensing and GIS techniques 总被引：1，自引：0，他引：1
The current work is aimed to realizing land and water use efficiency and determining the profitability of precision farming economically and environmentally. The studied area is represented by an experimental pivot irrigation field cultivated with maize in Ismailia province, Egypt. Two field practices were carried out during the successive summer growing seasons (2008 and 2009) to study the response of maize plants single hybrid 10 (S.H.10) to traditional and precision farming practices. Traditional farming (TF) as handled by the farm workers were observed and noted carefully. On the other hand precision farming (PF) practices included field scouting, grid soil sampling, variable rate technology and its applications. After applying PF a dramatic change in management zones was noticed and three management zones (of total four) were merged to be more homogenous representing 84.3% of the pivot irrigation field.Under PF Remote Sensing and Geographic Information System techniques have played a vital role in the variable rate applications that were defined due to management zones requirements. Fertilizers were added in variable rates, so that rationalization of fertilizers saved 23.566 tonnes/experimental pivot area. Natural drainage system was improved by designing vertical holes to break down massive soil layers and to leach excessive salts. Crop water requirements were determined in variable rate according to the actual plant requirements using SEBAL model with the aid of FAO Cropwat model. Irrigation schedule of maize was adopted considering soil water retention, depletion, gross and net irrigation saving an amount of water equal to 93,718 m3 in the pivot irrigation field (153.79 acre). However costs of applying PF were much higher than TF, the economic profitability (returns-costs) achieved remarkable increase of 29.89% as a result of crop yield increment by 1000, 2100, 800 and 200 kg/acre in the management zones 1, 2, 3 and 4, respectively. Finally applying adequate amounts of fertilizers beside water control the environmental hazards was reduced to the acceptable limits. 相似文献
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严重的干旱和水资源短缺已成为阜新县农业和农村经济发展的瓶颈。通过对阜新县农业基本情况的调查研究，探讨制约其农业和农村经济可持续发展的因素。并提出适合阜新地区的旱作节水农业发展模式，即耕地资源1：4：3：2的利用模式。分析结果表明，该发展模式具有良好的经济效益、社会效益和生态效益。 相似文献