搜索结果: 1-8 共查到“作物栽培学 population”相关记录8条 . 查询时间(0.066 秒)
Growth and yield of cassava as influenced by grain cowpea population density in Southeastern Nigeria
Cowpea LAI cassava plant density yield
2011/1/12
The use of some leguminous crops for soil fertility improvement is being promoted for root and tuber crops production in Nigeria. Cowpea has a lot of advantages and is more compatible with cassava tha...
Effect of inter-row spacing and plant population on weed dynamics and maize
Row spacing plant population weed density weed biomass maize yield
2011/1/10
A study was conducted to determine the effects of inter-row spacing (45 and 90 cm) and plant population (40000 and 60000 plants ha-1) on weed biomass and the yield of both green and grain materials of...
Vertical Distribution of Meteorological Factors in a Model Population of Rice Plant
Air temperature CO2 Humidity Population Rice plant
2009/8/6
Vertical Distribution of Meteorological Factors in a Model Population of Rice Plant.
Studies on the Effect of the Relative Humidity of the Atmosphere on the Growth and Physiology of Rice Plants : VI. Effect of ambient humidity on the photosynthetic rate of a rice plant population model
Leaf temperature Photosynthetic rate Population Relative humidity Rice Stomatal aperture
2009/8/6
The effect of ambient humidity on the photosynthetic rate of a rice plant population model (area: 120×60 cm, Planting density: about 40 plants/dm2, leaf area index: 6∼7, plant height: about 30 c...
Some Factors Related with Net Production of Soybean Population
Some Factors Net Production Soybean Population
2009/7/15
Some Factors Related with Net Production of Soybean Population.
Effect of sorghum cultivars on population growth and grain damages by the rice weevil, Sitophilus oryzae L.（Coleoptera：Curculionidae）
Sorghum bicolor stored products Sitophilus oryzae Cameroon
2009/3/4
In northern Cameroon, the rice weevil, Sitophilus oryzae L. (Coleptera: Curculionidae) is a major pest of Sorghum bicolor (Poaceae) during storage. This staple crop is currently damaged by many inse...
Studies on Plant Population and Stand Establishment Techniques for Increasing Productivity of Rice in Dera Ismail Khan, Pakistan
rice plant population planting techniques grain yield leaf area index
2008/12/11
Rice production in Pakistan is constraint by many factors pertaining to prevalent planting techniques. A research on the feasibility of new planting techniques (direct seeding on flat, transplanting o...
Effect of Population Density and Planting Configuration on Canopy Development and Reproductive Effort in Mungbean (Vigna radiata (L.) Wilczek)
Density configuration leaf area specific leaf mass reproductive effort mungbean
2010/11/8
A field experiment was conducted to determine the influence of population density and planting
arrangement on vegetative and reproductive growth of mungbean. The experiment was conducted with six lev...