Abstract:

Effects of bio-organic fertilizer on the root tubers yield of cassava and the physical and chemical biological character of soil were studied in this experiment, of which the cassava variety ‘Xinxuan048’ and the bio-organic fertilizer produced by Xianggui company were used as materials. The bio-organic fertilizers were applied on five different levels of 0 kg/hm2, 150 kg/hm2, 300 kg/hm2, 450 kg/hm2, 600 kg/hm2 in this experiment. The agronomic characters and physiological targets of ‘Xinxuan048’ and the physical and chemical biological character of soil were analyzed during the experiment. The results showed that the bio-organic fertilizer could increase the holes percent of soil, increase content of organic matter, available nitrogen, phosphorus and potassium, and promote the stems and leaves of cassava growth, and increase the yield. The mot tubers yield of the 450 kg/hm2 bio-organic fertilizer treatment was the highest which increased the root tubers yield by 38.01% higher than that of the contro1. The 450 kg/hm2, 600 kg/hm2, 900 kg/hm2 bio-organic fertilizer treatments increased the root tubers yield by1.59%, 22.93% and 15.98% respectively higher than that of the contro1.