搜索结果: 1-8 共查到“农学 semiarid”相关记录8条 . 查询时间(0.015 秒)
Detection of the effects of management and physical factors on forest soil carbon stock variability in semiarid conditions using parametric and nonparametric methods
soil organic carbon CART modelling, neural networks
2015/11/26
Forest soils in western parts of Iran are being degraded by inappropriate management. The soil organic carbon (SOC) stock was dominantly affected by this type of degradation. On the other hand, SOC is...
Evapotranspiration and water-use efficiency of irrigated colored cotton cultivar in semiarid regions
Bowen Ratio Crop Evapotranspiration Irrigation Treatments Seed-Cotton Yield
2013/3/4
Irrigation studies provide a framework for evaluating agricultural production and the water resource management in locations where water is scarce. Field experiments were conducted at Barbalha- CE (no...
Cropping frequency and N fertilizer effects on soil water distribution from spring to fall in the semiarid Canadian prairies
Fallow Frequency Water Use Plant Biomass Spring Wheat Soil Water
2013/3/4
In the semiarid Canadian prairies, water is the most limiting and nitrogen (N) the second most limiting factor influencing spring wheat (Triticum aestivum L.) production. The efficiency of water-and n...
Effect of Cultivation on Some Soil Attributes of a Long-term Pastoral Land in the Semiarid Tropics of Sudan
Management degradation grazing and soil properties
2010/11/15
Cultivation may have various effects on soil properties and could therefore be a useful guide
of soil quality indices. This study was conducted to determine the effects of more than 20 years cultivat...
Usability of the Taurus Cedar and Crimean Pine in green belt afforestations in semiarid regions in Turkey: A case study in Konya Province Loros Mountain -Akyokus
Crimean Pine green belt afforestation height root collar diameter Taurus cedar
2010/9/13
In this study, root collar diameter and height development of 9 year-old saplings of Taurus Cedar (Cedrus libani) and Crimean Pine (Pinus nigra subsp. nigra var. caramanica) in the green belt afforest...
Pearl Millet Developed Deep Roots and Changed Water Sources by Competition with Intercropped Cowpea in the Semiarid Environment of Northern Namibia
Heavy water Leaf water potential Rooting pattern Stable isotope Water stress Water uptake
2009/7/24
The practice of intercropping pearl millet with cowpea is widespread among subsistence farmers in northern Namibia. In this region, the scarce and erratic rainfall may enhance competition for the limi...
Nutrient Requirements for Growth of Lambs under Hot Semiarid Environment
Feed Efficiency Growth Hot Environment Lambs Nutrient Requirement Nutrient Utilization
2016/4/13
A factorial experiment was conducted to assess nutrient utilization by growing lambs maintained on three levels each of digestible energy (high: HE, medium: ME, low: LE) and protein (high: HP, medium:...
Production Performance and Carcass Characteristics of Malpura and Mutton Synthetic Lambs Fed Low and High Energy Rations in a Semiarid Region of India
Performance Carcass Characteristics Lambs Energy Feedlot Ration
2016/4/13
Forty eight lambs (24 each of Malpura and Mutton synthetic breeds) were weaned at 90 days of age and divided into two groups. One group of 12 lambs from each of the two breeds was maintained on low en...