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镁是作物生长发育不可缺少的营养元素.随着我区烟区复种指数与产量的提高,氮磷钾肥料用量增加及作物吸收养分数量的不同,而土壤中镁素养分又不能
Magnesium is an indispensable crop growth and development of nutritional elements.With the area of tobacco crop multiplication index and yield increased, nitrogen and phosphorus fertilizer increased the amount of nutrients absorbed by crops and the amount of different, but not in the soil of magnesium nutrients