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作物的根外追肥是根际追肥的重要补充,它可在作物需肥最紧要的时期满足作物对矿质养料的需要;并可解决根际追肥在农业技术上所遇到的一些困难;并且是施肥中最经济而有效的方法。如可以避免矿质养料的土壤固结及流失,因此是一种很有前途的施肥方法。
Crop root top dressing is an important supplement to rhizosphere top dressing. It can meet the needs of crops for mineral nourishment during the most critical period of fertilizer demand. It also can solve some difficulties in rhizosphere top dressing in agricultural technology. Fertilization in the most economical and effective way. If you can avoid the consolidation of mineral nutrients and soil loss, it is a promising method of fertilization.