打穴式旱田粉肥成球深施器在我县的推广应用江苏省宝应县农机推广站马增林化肥深施技术是利用化肥的位置效应，将化肥按农艺要求的数量深施于土壤表层以下一定深度。实践证明，化肥深施比表施提高利用率７０％左右，这一先进技术的推广应用是防止肥料流失，促进作物稳产、... Karst hole dry fertilizer fertilizer into the ball deep applicator in my county to promote the application of Baoying County, Jiangsu Province, agricultural extension station Ma Zenglin fertilizer application technology is the use of fertilizer location effect, the amount of fertilizer required by the amount of agronomically applied to the soil surface following certain depth. Practice has proved that fertilizer application rate of about 70% higher utilization, the popularization and application of this advanced technology is to prevent the loss of fertilizers and promote crop stable yield, ...