Keywords: 
• Banana（Musa nana Lour.） /
• biogas slurry formulated manure /
• soil quality /
• fruit quality

Abstract: Biogas slurry was used to prepare a formulated manure to apply to the banana to determine its effect on yield,fruit quality and soil properties of banana in Hainan. The results showed that the biogas slurry formulated manure improved the yield and fruit quality of banana,the laterite soil,the p H of acid soil,and the soil nutrient content. Compared with the conventional fertilizers,this formulated manure increased the fruit length by 5. 59%,the finger girth by 11. 01%,the number of hands by 3. 21%,the yield per plant by 4. 09%,the protein content of banana fruit by 10. 67%,the soluble sugar content by 6. 66%,the vitamin C by 3. 32%,the soil organic matter content by 2. 98%-3. 93%,the alkaline hydrolizable nitrogen content by 2. 25%-17. 07%,the available phosphorus by 5. 59%-18. 64%,and the available potassium by 25. 20%-39. 20%. The formulated manure improved not only the crop yield and fruit quality,but also the soil regime of the banana plantation. This study provides reference for further development and promotion of biogas slurry manure and its use in improving soil properties in Hainan.