生物有机肥对甘蔗产量及土壤的影响

研制了新型生物有机肥A、B,并对其在甘蔗施用效果和土壤肥力的影响进行了初探。结果表明,新型生物有机肥可明显改善甘蔗农艺性状、提高产量。施用新型生物有机肥A、B,其甘蔗产量分别比施用同等量的常规复合肥提高7.06%和10.76%,差异达显著水平。同时,施用该新型生物有机肥,土壤肥力得到明显改善。施用生物有机肥后90 d,土壤中的有机质,碱解N、速效P、速效K分别比对照提高了128.40%、17.65%、63.16%和36.84%。

The effects of new type of biofertilizer on yield of sugarcane and soil fertility

The new type A and B of biofertilizer were made and were applied on sugarcane to study their effects in improving the yield of sugarcane and soil fertility. Application of both type A and B of biofertilizer resulted in statistically increase in yield in the way of improving agronomic characters, such as stem width, stem length and quantity of stems. The yields of sugarcane were 7.06% and 10.76% higher for type A and B, respectively, than that of the control. The soil fertility was also investigated by analysis of soil samples. The organic matter, basic soluble nitrogen, available phosphorus, and available potassium were increased 128.40% , 17.65% ,63.16%, and 36.84% , respectively, as compared to the control with chemical fertilizer. It is concluded that the new type of biofertilizer can be applied on sugarcane for increasing the yield and for improving soil quality.