搜索结果: 1-15 共查到“农学总论 efficiency”相关记录25条 . 查询时间(0.234 秒)
Large square baling and bale handling efficiency—A case study
Biomass Logistics Material Capacity Harvest
2013/2/28
Large square baling is currently recognized as a high efficiency biomass harvesting system. Baling, bale collecting, and storing at a commercial wheat straw farm was studied as a typical large square ...
Resource Use Efficiency in Sesame (Sesamum indicum L.) Production under Organic and Inorganic Fertilizers Applications in Keana Local Government Area, Nasarawa State, Nigeria
Resource use efficiency organic and inorganic fertilizers
2010/11/15
The study examined resource use efficiency in Sesame production under organic and inorganic
fertilizers applications in Keana Local Government Area, Nasarawa State. Multi-stage random sampling was us...
Technical efficiency of the small scale sugarcane farmers in Swaziland: A case study of Vuvulane and Big bend farmers
Technical efficiency sugarcane stochastic frontier function
2011/1/11
The technical efficiency of the small scale sugarcane farmers of Swaziland is investigated using stochastic frontier production functions for Vuvulane scheme and Big bend individual farmers.
Determination of technical efficiency in cotton growing farms in Turkey: A case study of Cukurova region
Efficiency data envelopment analysis cotton Turkey
2010/9/13
This paper analyses technical efficiency of cotton farms in Çukurova region in Turkey. Data was collected from cotton farms through a questionnaire study. Data collection was carried out follow...
Effects of Irrigation and Straw Mulching on Microclimate Characteristics and Water Use Efficiency of Winter Wheat in North China
Irrigation Microclimate Straw mulching Water use efficiency Winter wheat
2009/7/23
In North China, irrigation is required to obtain a high yield from winter wheat; this results in rapid aquifer depletion. The primary objective of this study was to investigate the influencing mechani...
A Specific Feature of Nitrogen Utilization Efficiency in Leaf Photosynthesis in Oryza glaberrima Steud
CO2 exchange rate Leaf nitrogen content Mesophyll conductance Nitrogen utilization efficiency
2009/7/15
Specific characteristics in the photosynthetic response to nitrogen application were compare between Oryza glaberrima Stend. strains introduced from West Africa and O. sativa L. strains including japo...
Specific Differences in Matter Production and Water Purification Efficiency in Plants Grown by the Floating Culture System
Nutrient concentration Slow release fertilizer Specific difference Water purification
2009/7/9
Matter production and water-purification efficiency were compared among nine gramineous plants and one cyperaceous plant grown by the floating culture on natural water in order to determine the plant...
Analysis of technical, allocative and economic efficiency of different pond systems in Ogun state, Nigeria
Fish farming technical efficiency allocative and economic efficiency
2009/3/4
The study was carried out in Ogun State. The study investigated the costs and returns analysis of the respondents and the stochastic frontiers production analysis was applied to estimate the tec...
Effect of plantation pattern on the efficiency of subsurface flow constructed wetland（sfcw）for sewage treatment
Plantation pattern hydraulic retention time (HRT) vertical-flow constructed wetland Typha latifolia Canna siamensis
2009/3/3
The subsurface flow constructed wetland system (SFCW) with mono- and mixed-cultures of Typha latifolia and Canna siamensis could be applied for sewage treatment. The system efficiency was decrease...
The Efficiency of Resource Allocation and Productivity in the Agricultural Farms in Kazova Region of Tokat Province
Resource Allocation Productivity Agricultural Farms Kazova Region Tokat Province
2009/1/15
This study covers agricultural farms in Kazova area of Tokat province. The main material of the study was the data obtained from 134 farms by survey in period of 1994- 1995. In the study, translog pro...
High Efficiency Somatic Embryogenesis from Immature Zygotic Embryos of Grapevine：The Effect of Genotype, Media, 2,4-D, and Incubation Conditions
Grapevine zygotic embryo somatic embryo regeneration
2009/1/8
Immature zygotic embryos of 41 B grape rootstock (V. vinifera L. cv. 'Chasselas' x V. berlandieri) and Yalova İncisi (V. vinifera L.) were cultured on MS, NN, and B5 media supplemented with 0.5, ...
Efficiency of the magnetic treatment of broad bean seedscultivated under experimental plot conditions
broad bean magnetic field emergence plant development yield
2008/11/26
The tests were carried out in the Institute of Soil Science and Plant Cultivation in Puławy under experimental plot conditions in the years 2000-2001. The factor of the first order were two varie...
Influence of some meteorological factors on fertilizer use efficiency in winter wheat growing
fertilization dressing autumn-winter precipitation moisture index
2008/11/14
A field experiment with winter wheat (Triticum aestivum) on Orthic Luvisol was conducted for a period of eleven years. This study gives the ground to establish correctly the fertilizer rates, especial...
Soil moisture storage and water-use efficiency of maize planted in succession to different fallow treatments
water use efficiency maize Pueraria phaseoloides Panicum maximum Euphorbia heterophylla
2008/11/11
Soil water storage and crop water use efficiency (WUE) were monitored in a randomised complete block design experiment set up on a 0.7 ha field plot with treatments that consisted of five fallow trea...
Direct and Residual Effect of Sulphur on Growth, Nutrient Uptake, Yield and its Use Efficiency in Maize and Subsequent Greengram
Sulphur yield attributes yield of maize nutrient uptake S use efficiency value cost ratio
2010/11/11
Field experiments were conducted with maize and green gram in sandy clay loam soils of
Thondamuthur block of Coimbatore district to study the direct and residual effect of S application on growth, nu...