搜索结果: 1-15 共查到“农学 Tropics”相关记录23条 . 查询时间(0.062 秒)
Lightning strikes more than 100 million times per year in the tropics（图）
Lightning strikes 100 million times per year tropics
2020/7/31
Scientists at the Smithsonian Tropical Research Institute in Panama have published dramatic maps showing the locations of lightning strikes across the tropics.Based on ground and satellite d...
Forest fragmentation hits wildlife hardest in the tropics（图）
Forest fragmentation wildlife hardest tropics
2019/12/13
Animals that evolved in environments subject to large-scale habitat-altering events such as fires and storms are better equipped to handle forest fragmentation caused by human development than species...
Overcoming seasonality in the tropics by growing tomato (Lycopersicon esculentum Mill.) varieties under cooled conditions
Indeterminate Tomato Cherry Cooled Plastic House Off-Season Sudan Tropics
2013/2/28
The main objective of this work was to overcome seasonality in tomato production under hot tropical summer conditions, as well as to evaluate the adaptability and productivity of cherry and normal siz...
Long-term effects of management systems on crop yield and soil physical properties of semi-arid tropics of Vertisols
Broadbed and Furrow System Minimum Tillage Long-Term Experiment Sustainability
2013/3/5
Long-term experiments can be used to assess management induced changes in soil properties and sustainability of the management system in terms of the productivity. Such data are scanty, especially in ...
Factors Affecting High Mortality Rates of Dairy Replacement Calves and Heifers in the Tropics and Strategies for Their Reduction
Pre-weaning Calf Mortality Tropics Small Holder Dairy Systems
2016/5/9
The tropics is not an ideal location for calf rearing as the high temperatures and humidities introduce many potential disease problems to milk fed calves. In addition, the type of dairy farming (gene...
Effects of Cooling and Exogenous Bovine Somatotropin on Hematological and Biochemical Parameters at Different Stages of Lactation of Crossbred Holstein Friesian Cow in the Tropics
Cooling Recombinant Bovine Somatotropin Hematology Blood Chemistry Crossbred Holstein Freisian
2016/5/6
Effects of cooling and supplemental recombinant bovine somatotropin (rbST) on hemato-biochemical characteristics were studied at different stages of lactation of crossbred Holstein Friesian cows in a ...
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...
Growth and Yield Response of Okra to Lime and Compost on an Acid Soil in the Humid Tropics
Abelmoschus esculentus acid soil compost Epe Ibadan lime
2010/11/15
Acid sands occur commonly in the high–rainfall areas along the coastal plains of Nigeria as
a serious constraint to crop production and a primary yield-limiting factor. Pot and field experiments were...
Nitrogen Absorption Pattern of Rice Plant in the Tropics
Growth duration Nitrogen uptake Oryza sativa L Spacing
2009/8/6
The amount of N in plants increased exponentially at the early growth stage (y=abx) and linearly at the middle and late growth stages (y=a+bx). The crossing point of the two equations coincided with t...
Effect of Slow Release Fertilizer(Meister)on the Nitrogen Uptake and Yield of the Rice Plant in the Tropics
Growth N-uptale Rice plant Slow release fertilizer
2009/8/5
Field experiments on the response of rice plants to slow release fertilizer (Meister 10, MS10) were conducted from the 1986 wet season (WS) to the 1987 WS at IRRI, with ammonium sulfate (AS) as contr...
Soil Management Systems Improve Water Use Efficiency of Rainfed Rice in the Semi-Arid Tropics of Southern Lombok,Eastern Indonesia
Evaporation Paddy Precipitation Water requirement
2009/7/24
Rice (Oryza sativa) grown on rainfed Vertisols in the semi-arid tropics of southern Lombok, Eastern Indonesia, is usually flooded in the short wet season, creating a considerable demand for water. How...
Effect of Forage Feeding on Goat Meat Production: Carcass Characteristics and Composition of Creole Kids Reared Either at Pasture or Indoors in the Humid Tropics
Goat Tropical Grass Carcass Cut Carcass Composition Pasture Indoors
2016/4/29
Forage diets provide good quality carcasses in sheep but very little is known in tropical goats. An experiment was designed with Creole male goats using grass-based systems to assess carcass yield, sc...
Impact of Climate Change on Food and Plantation Crops in the Humid Tropics of India
Climate change Climate Risk Change in Cropping System
2016/4/7
Long series of climatological data for 140 years over Kerala in the humid tropics of India indicate cyclic pattern in rainfall with a declining trend in annual and southwest monsoon rainfall during th...
Impact of Climate Change on Indian Mustard (Brasssica Juncea) in Contrasting Agro-Environments of the Tropics
InfoCrop Simulation Impact Mustard Aphid Climate Change India
2016/4/7
The fourth assessment report of IPCC (Intergovernmental Panel on Climate Change) makes it clear that the global average temperature has been increased by 0.740C over the last 100 years and projected t...
Constraints to the delivery of clean seed yams in the lowland sub-humid tropics of Nigeria: The supply chain approach
Supply chain seed yam dealers small holder farmers profitability marketing strategies marketing functions
2010/9/10
An investigation into the seed yam supply chain was carried out to identify the components of commercial seed yam supply systems, which affect the supply of clean seed yams by smallholder farmers in N...