搜索结果: 1-12 共查到“农学 cover crops”相关记录12条 . 查询时间(1.241 秒)
Cover Crops for Weed Management in Southern Reduced-Tillage Vegetable Cropping Systems
Alternative weed control conservation agriculture
2015/12/23
With growing agricultural demands from both conventional and organic systems comes the need for sustainable practices
to ensure long-term productivity. Implementation of reduced- or no-till practices...
Potential use of green manure legume cover crops in smallholder maize production systems in Limpopo province, South Africa
Green manure legumes maize N fertilizer smallholder farms
2011/2/22
Much of the smallholder farming sector in Limpopo province of South Africa is located on infertile degraded soils, with nitrogen being one of the predominantly deficient nutrient. The use of green man...
The effects of different autumn-seeded cover crops on subsequent irrigated corn response to nitrogen fertilizer
Corn Cover Crop Nitrogen Fertilizer
2013/3/5
A common crop rotation in the west Iran is wheat-fallow-corn. The fallow period after wheat harvest (during fall and winter) can lead to soil erosion, nutrient losses (e.g. nitrate leaching) and offsi...
Biomass accumulation, weed dynamics and nitrogen uptake by winter cover crops in a warm-temperate region of South Africa
Biomass yield conservation agriculture cover crops weeds dynamics
2011/1/11
Production of large biomass yields and weed suppression from cover crops have been major constraints affecting success and uptake of conservation agriculture technologies by smallholder irrigation far...
Nitrogen Uptake by Cover Crops and Inorganic Nitrogen Dynamics in Andisol Paddy Rice Field
Cover crop Paddy field Nitrogen
2010/12/2
Paddy field rice can conserve N in the soil under flooded conditions. However, residual soil N represents a potential environment concern when fields are no longer flooded. Winter annual grass cover c...
Effect of Incorporation of Hairy Vetch and Rye Grown as Cover Crops on Weed Suppression Related with Phenolics and Nitrogen Contents of Soil
Cover crop Phenolics Soil carbon Soil nitrogen Weed occurrence
2010/3/4
Characterization of the release of degradable components of cover crops is important for determining the quality of soil nutrients for the following crop and weed occurrence. We have examined the temp...
Target area identification using a GIS approach for the introduction of legume cover crops for soil productivity improvement：a case study eastern Uganda
LCC (legume cover crops) GIS (geographic information systems) targeting agro-technology transfer
2009/3/4
Amidst the economic backdrop of resource-poor farmers, combined research and extension efforts in developing countries have focused on developing and promoting potentially adaptable and economically...
Mitigation of Wind Erosion Adopting Grass Cover Crops in Chinese Cabbage Production
wind erosion Chinese cabbage cover crop
2010/12/2
Soil wind erosion is a serious issue in upland fields, because winter fallow treatments produce awful erosions in Kato area, Japan. This research evaluated the abilities of cover crops that planted at...
Winter Annual Cover Crops in a Virginia No-till Cotton Production System: II. Cover Crop and Tillage Effects on Soil Moisture, Cotton Yield, and Cotton Quality
Virginia No-till Cotton Production Winter Annual Cover Crops
2008/5/19
Winter annual cover crops could help control soil erosion problems on sloping Piedmont soils in a no-till cotton (Gossypium hirsutum L.) production system. Field experiments were conducted from 1995 t...
Winter Annual Cover Crops in a Virginia No-till Cotton Production System: I. Biomass Production, Ground Cover, and Nitrogen Assimilation
Virginia No-till Cotton Winter Annual Cover Crops
2008/5/13
Cotton (Gossypium hirsutum L.) may not provide sufficient surface residue to reduce erosion and protect the soil between crops. A winter annual cover crop might alleviate erosion during the time betwe...
Biomass Production and Weed Control in Some Winter Cover Crops in Hokuriku District
Cover crops Above-ground biomass Plant residue mulch
2010/12/2
For the purpose of introduction cover crops into summer crop production in the Hokuriku district, grass (wheat, barley, rye and bristle oat), legume (hairy vetch, HV ; common vetch, CV ; milk vetch, M...
Soil nitrate N as influenced by annually undersown cover crops in spring cereals
cereals clovers cover crops grasses intercropping nitrate nitrogen
2010/8/13
Cover crops can reduce leaching and erosion, introduce variability into crop rotations and fix nitrogen (N) for use by the main crops. In Finland, undersowing is a suitable method for establishing cov...