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论我国多作种植的发展及其机械化 被引量:1
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作者 赵秉强 谢胜利 《农业现代化研究》 CSCD 北大核心 1995年第3期202-204,共3页
多作种植是我国农业重要的发展道路。本文回顾了多作种植在我国时起时落的发展历程,重点探讨了多作种植中农机与农艺结合的辩证关系,提出多作种植农机与农艺紧密结合、相互适应,并与其它现代农业新技术相结合,共建科学的集约种植技... 多作种植是我国农业重要的发展道路。本文回顾了多作种植在我国时起时落的发展历程,重点探讨了多作种植中农机与农艺结合的辩证关系,提出多作种植农机与农艺紧密结合、相互适应,并与其它现代农业新技术相结合,共建科学的集约种植技术新体系的观点,还针对我国当前发展多作种植中亟待解决的问题,提出了农机与农艺改革的建议。 展开更多
关键词 多作种植 农业机械化 农艺 发展模式
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黄瓜制种间复种多作高效栽培技术 被引量:1
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作者 吕长胜 武建凯 《山西农业科学》 1999年第1期38-41,共4页
在黄瓜繁种过程中,采用与玉米、大白菜三种三收间复作栽培方法,是一项新的农田高产高效种植模式。春播黄瓜、玉米的间种合理带比是180cm∶60cm。黄瓜收获后,复种大白菜。配合秋耕增肥、合理密植、看植株调肥控水管理、防治... 在黄瓜繁种过程中,采用与玉米、大白菜三种三收间复作栽培方法,是一项新的农田高产高效种植模式。春播黄瓜、玉米的间种合理带比是180cm∶60cm。黄瓜收获后,复种大白菜。配合秋耕增肥、合理密植、看植株调肥控水管理、防治病虫和科学采种的综合配套栽培技术,一般每公顷产优质瓜种600~900kg,玉米6000~7500kg,大白菜7.5万kg以上。 展开更多
关键词 黄瓜 制种 多作种植 复种 栽培技术
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Agrobiodiversity for Livelihood Security: A Case Study of Agroforestry Technologies in Mexico
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作者 P. Krishna Krishnamurthy Krishnamurthy Laksmi Reddiar 《Journal of Life Sciences》 2011年第2期108-119,共12页
The present article examines the livelihood benefits associated with agrobiodiversity in Veracruz, Mexico. Citrus-based agriculture is the principal economic activity in the agricultural sector of the state of Veracru... The present article examines the livelihood benefits associated with agrobiodiversity in Veracruz, Mexico. Citrus-based agriculture is the principal economic activity in the agricultural sector of the state of Veracruz. It is practiced in mono-crop plantations by the majority of farmers, who are rendered vulnerable to price depreciation resulting from simultaneous harvest and over-supply of a single commodity. Some farmers have associated multiple crops in citrus farms (agroforestry techniques) as a strategy to improve their livelihoods. Farmers who increased agrobiodiversity in their farms have significantly improved their livelihoods compared to mono-crop plantation owners. The research shows that increased agro-biodiversity can be a strategy to improve the livelihoods of citrus producers in the state of Veracruz, with significant economic benefits depending on the crop combination: maize-citrus is the least economically profitable combination (providing 21% in terms of internal rate of return), while pineapple-citrus, banana-citrus and vanilla-citrus give higher returns (41%, 44% and 221% respectively). The citrus-vanilla crop combination also has the highest benefit-cost ratio, relative to citrus monocrop (1.91) as well as the highest net present value (MX$579,635.73). The choice of crop ultimately depends on the farmer's priorities. The associated benefits can be classified in three ways which correspond to the tripartite goal of sustainable development: (i) ecological sustainability (through increased ecosystem resilience), (ii) economic stability (through diversified, less risk-prone sources of income), and (iii) social well-being (through lower). 展开更多
关键词 AGROBIODIVERSITY agrofroestry citriculture livelihood security Mexico multiple cropping.
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