![]() ![]() Similarly, APSIM effectively predicted Leaf Area Index attained at the flowering (r 2 = 0.90) and maturity (r 2 = 0.94) stages. APSIM adequately simulated maize grain yield (r 2 = 0.97) and total above-ground biomass (r 2 = 0.95) in the control and in the 50% treatments at Melkassa, and likewise in the control (r 2 = 0.99), 25% (r 2 = 0.90) and 50% (r 2 = 0.98) treatments at Machakos. ![]() Data from a similar field experiment at Machakos Research Station, Kenya, with 0, 25 and 50% shading were also used for simulation. The treatments contained three levels of shading intensity that reduced incident radiation by 0 (control), 50 and 75% using shade cloth. To quantify and simulate the impacts of shading on maize performance without trees, a field experiment was conducted at Melkassa Agricultural Research Centre, Ethiopia. Apsim crop model simulator#Capability in the agricultural production systems simulator (APSIM) model to simulate the impacts of shading on crop performance could be particularly useful, as the model is already widely used to simulate agricultural crop production. A major component of this interaction is the impact of shade from trees on crop growth and yield. ![]() A number of agroforestry models have been developed to simulate growth outcomes based on the interactions between components of agroforestry systems. ![]()
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