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1.施肥深度 最佳深度10厘米左右。施肥深度小于5厘米时,化肥从土壤气隙中挥发掉的损失很大(60％左右);深施5～10厘米时,挥发损失约30％左右;深施15厘米以上时,才没有损失。但这样深用工量太大,又不利农作物吸收,且作物产量不如深施10厘米时高。 2.化肥施用位置 (1)种肥与种子保持3～5厘米距离(避免种子中毒);(2)追肥深度8～10厘米,侧距10～12厘米;(3)底肥深10～15厘米。
Fertilization depth of the best depth of about 10 cm. Fertilizer depth of less than 5 cm, the loss of fertilizer volatilized from the soil air gap loss is very large (about 60%); 5 to 10 cm deep application of volatile loss of about 30%; depth of more than 15 cm, there is no loss . However, this deep-working workload is too large, but also adversely affect the absorption of crops, and crop yields as high as 10 cm deep. 2. Fertilizer application position (1) fertilizer and seed to maintain a distance of 3 to 5 cm (to avoid seed poisoning); (2) dressing depth of 8 to 10 cm, lateral spacing of 10 to 12 cm; (3) base fertilizer depth of 10 to 15 cm .