Prof. Dr. F.W.T. Penning de Vries
Research Institute for Agrobiology and Soil Fertility (AB-DLO)
Dept. Agrosystems Research
6700 AA Wageningen
Fax : +31.8370.23110
SOYCROS is a summary model to simulate growth and production of soybean varieties. It is based on crop physiology, agrometeorology and soil physics, with additions pertaining to water stress and functioning of roots. il, daily rates of crop photosynthesis, respiration, carbohydrate partitioning, phenological development, transpiration, and of infiltration, drainage and movement of water in the soil are calculated in relation to the status of the crop, the soil water and current weather conditions. Nitrogen balance processes are not explicitly simulated. Rates are integrated at the end of each day to update the weight of the crop organs and the water contents of the soil layers. The cycle is repeated until the end of the growing season is reached. The following items were added: - There is a choice of four crop management situations: rainfed and irrigated upland, and rainfed and irrigated lowland. - Simulation starts at the beginning of the turn around period. - Germination simulated in relation to soil moisture. - The effect of N-redistribution on photosynthesis is included. - After-effect of severe water stress is included. - Effect of anaerobiosis in the root environment is simulated. After simulation, a spreadsheet is used with fixed prices and costs to compute net returns.
CAMASE (Concerted Action for the development and testing of quantitative methods for research on Agricultural Systems and the Environment):
CAMASE(Concerted Action for the development and testing of quantitativemethods for research on Agricultural Systems and the Environment):