Effects of green manure intercropping on soil nutrient content and bacterial community structure in litchi orchards in China

Green manure intercropping is an agronomic management practice that effectively increases soil nutrients in understory and reduces weed population. However, the influence of different green manures on properties bacterial community litchi orchards tropical regions China remains largely unknown. Here, we examined effect three leguminous crops Hainan Province. No was used as control. Different increased contents nutrients. For example, Desmodium ovalifolium total nitrogen content by 7.93%; Grona heterocarpos ammonium 558.85%; Stylosanthes guianensis available phosphorus 1207.34%. with D. ovalifoliu S. reduced potassium 47.29% 58.48%, respectively. The abundance several microbial genera, including Bradyrhizobium , Serratia Bacillus which are known to facilitate accumulation, plant growth, dissolution. Compared no intercropping, treatments significantly improved orchard. Therefore, effective measure; however, choice crop should be based conditions orchards.