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ALFAMOD模式是用来模拟苜蓿生产以及它与气象、土壤环境之间关系的。本文用ALFAMOD对美国俄勒岗州不同地区苜蓿的潜在产量和苜蓿生产对肥水的需求量进行了估价,对不同年份和不同收割期的产量预测取得了令人满意的结果。根据ALFAMOD的模拟结果,将俄勒岗州划分成10个苜蓿农业生态区。还讨论了不同地区苜蓿生产的最优策略。
The ALFAMOD model is used to simulate alfalfa production and its relationship to meteorological and soil conditions. In this paper, ALFAMOD was used to evaluate the potential yield of alfalfa in different regions of Oregon and the demand for fertilizer and water for alfalfa production. The results of yield prediction in different years and different harvesting periods have achieved satisfactory results. According to the ALFAMOD simulation results, Oregon is divided into 10 alfalfa agro-ecological zones. The optimal strategies for alfalfa production in different regions are also discussed.