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ＰＧ制剂作为一种新型微生物制剂———土壤磷活化剂，经田间小区试验证明，ＰＧ微生物制剂拌种用量４５０～１５００ｍｌ／ｈｍ２对棉花都有增产作用，以１５００ｍｌ／ｈｍ２用量效果最佳，达极显著水平
PG as a new microbial agent - soil phosphorus activator, field experiments showed that the amount of PG microbial agent dressing 450 ~ 1500ml / hm2 have an effect on the cotton yield to 1500ml / hm2 dosage the best effect of up to Very significant level