An attempt is made in this paper to review briefly the experiences of obtaining high crop yields and to identify what constrains maximizing crop yields in Pakistan.
An attempt is made in this paper to review briefly the experiences of obtaining high crop yields and to identify what constrains maximizing crop yields in Pakistan.
本文努力简述巴基斯坦获得作物高产的经验和确认最高作物产量的限制因子。