搜索结果: 1-15 共查到“农学总论 weather”相关记录18条 . 查询时间(0.119 秒)
Effect of weather patterns on preweaning growth of beef calves in the Northern Great Plains
Beef Calves Climate Change Growth Precipitation emperature
2013/3/4
Records from a 76-year investigation into effects of line breeding and selection of Hereford cattle, and concurrent weather records, were used to assess effects of weather patterns on growth of suckli...
Traditional capacity for weather prediction, variability and coping strategies in the front line states of nigeria
Traditional Knowledge Base Rainfall Prediction Crop Production Northern Nigeria
2013/2/28
This paper is based on the results of a pilot project conducted to strengthen Nigerian Meteorological Agency’s (NIMET) capacity to provide reliable planting date forecast in Nigeria. This aspect of th...
APHID DYNAMICS IN WHEAT AS AFFECTED BY WEATHER AND CROP PLANTING TIME
Triticum aestivum Sitobion,Schizaphis Rhopolosiphum population densities climate sowing time Pakistan
2009/9/29
A study was conducted at Wheat Research Institute, AARI, Faisalabad, Pakistan
during 2004-05 and 2005-06 to understand dynamics of aphid infestation as affected
by weather and wheat sowing time. Dai...
Influence of Abnormally Warm andWet Weather on the Yield and Apparent Quality of Wheat and Two-rowed Barley and Its Related Factors in Northern Kyushu in 1998
Apparent quality Crop situation index Damaged grain Precipitation Two-rowed barley
2009/7/15
The abnormal weather did much damage to wheat and two-rowed barley in Kyushu in 1998. The crop situation index and the average yield in Fukuoka Prefecture were 50 and 168 g / m2 for wheat and 52 and ...
Effects of Gibberellin and Cytokinin on the Resistance to Cool Weather at the Young Microspore Stage in Rice Plants (ar Paper>Crop Physiology and Cell Biology)
Cool-weather resistance Cytokinin Fertility Gibberellin Nitrogen Pollen Rice Young microspore stage
2009/7/14
The effects of gibberellin, cytokinin and an inhibitor of gibberellin biosynthesis on spikelet fertility and the number of pollen grains were examined in rice plants which were cooled at the young mic...
Relative Amount and Physiological Activity of Roots Affect the Resistance to Cool Weather at the Young Microspore Stage through the Number of Pollen Grains in Rice Plants
Rice Pollen Number of Pollen Grains Cool-weather resistance Nitrogen
2009/7/7
The relative amount of roots (dry weight ratio of root to shoot, or root dry weight per spikelet) or the physiological activity of roots is correlated with the cool-weather resistance in rice plants. ...
Resopnse of Wheat (Triticum Aestivum) Under Varying Weather Environment
Temperature Yield Wheat Irrigation Heat Unit Efficiency Heat Units
2016/4/7
A field experiment was conducted during Rabi 2007-08 and 2008-09 at Instructional Farm, Rajasthan College of Agriculture, Udaipur. The treatment comprises of four sowing dates (7th November, 19th Nove...
Assessment of Modified Weather on Rice Yields using Ceres Rice Model in Andhra Pradesh
DSSAT V4.0 Elevated Temperature Solar Radiation Grain Yield Biomass Nitrogen levels
2016/4/7
Field experiment was conducted under 3 different planting dates and 5 nitrogen levels to assess the impact of modified weather on yield and biomass of rice using CERES-Rice at Agricultural Research In...
Weather and seasonal effects on growth, seed yield and soluble carbohydrate concentrations in selected maize cultivars in the humid areas of Nigeria.
Maize soluble carbohydrate chlorophyll yield cropping seasons tropics
2009/3/3
A study was conducted in 2001 and 2002 to identify genotypic attributes relevant to performance and adaptation of ten maize cultivars grown on the field in the rainy and in the late seasons (termina...
Analysis of the interrelation between the heat balance structure, type of plant cover and weather conditions
heat balance evapotranspiration latent heat sensible heat Bowen ratio
2008/11/26
There are many ways of micrometeorological description of the environment. One of them is the analysis of heat balance of an active surface which characterizes very well areas with different plant cov...
Problems with the classification and prediction of extreme weather phenomena
extreme weather phenomena classification prediction
2008/11/18
Problems concerning classification and prediction of extreme weather phenomena were discussed. Classification of more important meteorological elements and extreme events are shown.
Perception of weather conditions during atmospheric thaw in the Szczecin Lowlands
wind chill index atmospheric thaw heat perception
2008/11/14
The study was based on the results of daily measurements (taken at 1 p.m.) of air temperature and wind velocity and average diurnal temperatures of the air at the height of 200 cm above the ground, ta...
Nitrates(V) in loess soils modified by weather conditions(preliminary data of a model experiment)
nitrates(V) Eh pH loess soils anaerobic conditions
2008/11/13
In a model experiment (anaerobiosis) with full
saturation of soil samples with water and their incubation at 5, 10
and 20°C during 0-60 days, nitrates(V) concentration in soil solution,
Eh and pH i...
THE USE OF 3-DIMENSIONAL GRAPHIC DISPLAY METHOD FOR PRESENTING THE CHANGES IN WEATHER
digital surface model precipitation change artificial neural network moving average
2010/3/25
Several methods have been worked out by now to present the changes of weather and its
elements. In this article we present a graphic method where the changes of the different elements of the weather ...