Effects of different farming methods and its effect on the soil physicochemical properties of Guilin Maojian tea garden

In order to further optimize the cultivation and agronomy technology of Guilin Maojian tea garden， Through the modification of the experimental site，contrast no farming，the effect，efficiency and cost of different tillage methods were studied in this paper. The results showed that：human farming，micro tillage machine，crawler tractor can improve the physical and chemical properties of soil. After farming the soil had good water retention but low moisture content compared to the contrast group，while the soil bulk density and hardness value were significantly lower than the contrast，and the porosity of soil was significantly higher than that of contrast. With the passage of time after farming，soil bulk density and hardness value will gradually increase，ant the porosity of soil decreases gradually. There were significant differences between the effect，efficiency and cost of different farming methods. The crawler tractor is the best and most stable. At the same time，the operating efficiency was 10 times of human farming while the cost 0.39 times of human farming. But for tea plantations that are intended to be mechanized，In addition to the mechanical and technical personnel to be configured in place，the site conditions，planting mode and mechanical way reservation of tea garden should be planned accordingly. It is recommended to select flat or gentle slope for reclamation，preferential selection of non-sexual tea tree varieties，with over 180 cm long distance planting and the main road construction more than 3.0 m，trunk road 2.0 m above，and the tea garden and surrounding mountain forests，farmland should be equipped with isolation ditch and drain. This study shows that it is feasible to use the micro tillage machine or crawler tractor to carry out the mechanical tillage work of the Guilin Maojian tea garden， it provides a theoretical basis for mechanical cultivation to improve the physical and chemical properties of soil. It is also conducive to the acceleration of the mechanization of the Guilin Maojian tea garden.