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在1977和1978年,我们分场试验推广了用碳酸氢铵作秧田基肥的措施,面积180亩,占秧田总面积的90%。两年的实践使我们认识到,碳酸氢铵作秧田基肥有几点好处:(1)埋于土中,不易挥发,提高了肥料的利用率。(2)碳酸氢铵为速效肥料,预先施入土中,只要秧苗一扎根,就能吸收肥料,有利
In 1977 and 1978, our field trial promoted the use of ammonium bicarbonate as a base fertilizer for seedlings, covering an area of 180 mu, accounting for 90% of the total area of the plant. Two years of practice so that we recognize that ammonium bicarbonate for seedling base fertilizer has several advantages: (1) buried in the soil, not volatile, increased fertilizer utilization. (2) ammonium bicarbonate for quick fertilizer, pre-applied to the soil, as long as a rooted seedlings, you can absorb fertilizer, favorable