Simulation modeling of growth, development and grain yield of wheat under semi arid conditions of Pakistan.

摘要

An experiment was conducted to simulate the canopy growth, development and grain yield of wheat under semiarid conditions of Pakistan, during 2002-03. The model was also used to assess the sowing date and rate requirements of wheat. The model shows that to achieve 6000-7000 kg/ha crop must intercept 600 MJ PAR from mid-December to early-March during the season with a leaf area index of 4-6.