Impacts Of Soil Tillage Methods Recyclingon Soil Physical And Chemical Properties In Banana-Cropping

Cultivation patterns are the most important measures in farm production. To investigate the impacts of different cultivation patterns on the physical and chemical properties of banana plantations soils at Chengmai, this research was conducted at the main banana plantations of Chengmai, Hainan province. We studied and analyzed the impacts of the main cultivation patterns (deep ploughing and no-till and straw returning) on the physical and chemical properties of banana plantations during primary growth stages through field plot experiment; and preliminarily investigated the effect of soil betterment and mechanism of the two cultivation patterns and straw returning. Main results are as follows:(1) Considering the soil organic material content of banana plantations of varieties under different cultivation modes as well as straw returning, organic material content of straw returning lands is significant higher than no-till lands which are 25.22%,25.22%,13.49% and 18.06% respectively under different growth stages; organic material content of deep-ploughing is significant higher than no-till lands which are 15.31%,5.63%,13.95% and 13.60% respectively.(2) Considering the soil nitrogen content of banana plantations of varieties under different cultivation modes as well as straw returning, nitrogen content of straw returning lands is significant higher than no-till lands which are 40.20%、37.73%、21.36% and 27.06% respectively under different growth stages; nitrogen content of deep-ploughing is significant higher than no-till lands which are 20.56%、6.09%、10.93% and 16.46% respectively.(3) Considering the soil available phosphorus content of banana plantations of varieties under different cultivation modes as well as straw returning, available phosphorus content of straw returning lands is significant higher than no-till lands which are 169.96%、 332.37%、476.37% and 453.73% respectively under different growth stages; available phosphorus content of deep-ploughing is significant higher than no-till lands which are 56.06%、61.93%、69.35% and 58.77% respectively.(4) Considering the soil available potassium content of banana plantations of varieties under different cultivation modes as well as straw returning, available phosphorus content of straw returning lands is significant higher than no-till lands which are 79.77%、33.68%, 54.86% and 76.55% respectively under different growth stages; available potassium content of deep-ploughing is significant higher than no-till lands which are 50.97%、 22.55%、22.24% and 5.01% respectively.(5) The two different kinds of cultivation patterns and straw returning has no significant impacts on the banana plantation soil PH.(6) Considering the soil volume weight of banana plantations of varieties under different cultivation modes as well as straw returning, the volume weight of straw returning lands presents no significant changes; while the volume weight of no-till lands is significant higher than that of deep ploughing lands which are 11.27%、17.32%、14.39% and 2.89% respectively.