搜索结果: 31-45 共查到“知识库 农学 simulation”相关记录51条 . 查询时间(0.269 秒)
Landscape-Scale Simulation of Pesticide Behavior in River Basin due to Runoff from Paddy Fields Using Pesticide Paddy Field Model（PADDY）
environmental fate pesticides paddy river basin runoff
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2009/3/7
A landscape-scale simulation model (PADDY-Large) based on PADDY was developed for predicting pesticide concentrations in drainage canals and rivers due to runoff from paddy fields. Based on the irri...
Trophic analysis and fishing simulation of the biggest Amazonian catfish
Brachyplatystoma sp várzea Amazon floodplain fisheries Ecopath with Ecosim
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2009/3/3
Currently, it is unanimous the fact that the ecosystem approach gives important insights to support fisheries stock assessment and management and healthy sustain aquatic ecosystems. This work ...
Simulation and Validation of Rice Potential Growth Process in Zhejiang Province of China by Utilizing WOFOST Model
crop growth model rice yield crop growth process simulation calibration
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2009/1/7
A crop growth model of WOFOST was calibrated and validated through rice field experiments from 2001 to 2004 in Jinhua and Hangzhou, Zhejiang Province. For late rice variety Xiushui 11 and hybrid Xieyo...
Attempt to use the SWATREZ and UNDYS models for the simulation of ground water pollution in agrosystems irrigated by municipal sewage
modelling waste water ground water nitrogen hydromorphic soil
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2008/12/2
For the simulation of water movement and pollutant transport in the hydromorphic soil profile two numerical models SWATREZ and UNDYS were used. These models are based on water movement in porous mater...
Analysis of the shear behaviour of a grain assemblyusing dem simulation
grain assembly shear behaviour numerical simulation Discrete Element Method
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2008/11/26
Shear behaviour of a grain assembly in a shear box under the condition of no externally applied load was investigated numerically using the Discrete Element Method. The assembly was a monodisperse sys...
Mathematical simulation of soil cloddiness
soil mechanics clods cracking size distribution mathematical simulation
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2008/11/14
A theoretical model was developed to predict soil clod size distribution attained after tillage so that it can be taken as initial state of soil for following erosion processes. The model was develope...
Simulation of the soil water regime for grassland irrigation
water flow in soil evapotranspi ration crop production irrigation predicted
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2008/11/12
The principle aim of this study was to develop a model to predict the water processes under growing grass. This paper includes: the GRAGRO model simulates the vertical flow in an unsaturated homogeneo...
Two approaches to the description of distribution keys in crop simulation models
dynamic model plant development physiological age dry matter distribution keys
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2008/11/11
Distribution keys are used in crop models for the description of assimilates partitioning between several plant organs. Standard approach is to use table data for discrete points as functions of a phy...
Crop Simulation Growth Model in Cassava
Cassava intercropping organic manures Richards’ growth model growth rate
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2010/11/10
Field experiment was conducted at Veterinary College and Research Institute Farm, Namakkal
during 2002 to find out the effect of forage intercropping and organic manures on the growth and growth rate...
Simulation of Harvesting and Wrapping Forage Rice using a Rice Whole Crop Harvester and a Bale Wrapper
Rice whole crop silage Harvest Whole crop harvester
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2010/12/2
Much attention is being focused on growing rice not for human consumption but for cattle feed as whole-crop silage (WCS) in Japan. Rice WCS is a wholesome cattle feed that meets demands for safe feed ...
RESOURCE OPTIMIZATION BY SIMULATION TECHNIQUE IN FOOD LOGISTICS
Food logistics discrete event models simulation technique queuing air pollution
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2010/3/24
Any activity that receives inputs and convert them to outputs can be considered as a process.
Essentially the same model equations are used in the theory of chemical, biochemical, nuclear,
mechanica...
THE EFFECT OF CLIMATE CHANGE ON THE POPULATION OF SYCAMORE LACE BUG (CORYTHUCA CILIATA, SAY,TINGIDAE HETEROPTERA) BASED ON A SIMULATION MODEL WITH PHENOLOGICAL RESPONSE
climate change insects pest management simulation agriculture
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2010/3/24
Climate change affects on insect populations in many ways: it can cause a shift in geographical spread, abundance, or diversity, it can change the location, the timing and the magnitude of outbreaks o...
APPLICABILITY OF THE AFRCWHEAT2 WHEAT GROWTH SIMULATION MODEL IN HUNGARY
winter wheat modelling calibration elevated CO2 concentration
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2010/3/24
The aim of the present work was to determine the applicability of the AFRCWHEAT2 wheat
growth model under Hungarian conditions. The Farquhar model, which, when properly calibrated, gives a satisfacto...
A rainfall simulation study on the relationships between soil test P versus dissolved and potentially bioavailable particulate phosphorus forms in runoff
phosphorus bioavailability erosion rainfall simulation
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2010/8/11
Runoff from clayey soils often contains abundant particulate phoshorus (PP), part of which may solubilize in surface waters. Monitoring losses of potentially bioavailable forms of PP is expensive, cal...
SEASONAL DYNAMIC PATTERN ANALYSIS IN SERVICE OF CLIMATE CHANGE RESEARCH A METHODICAL CASE-STUDY — MONITORING AND SIMULATION BASED ON AN AQUATIC INSECT COMMUNITY
state-planes NMDS ordination seasonality Heteroptera similarity patterns
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2010/3/23
Our aim was to approach an important and well-investigable phenomenon – connected to a relatively simple but real field situation – in such a way, that the results of field observations could be direc...