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通过田间试验研究不同机械耕作方式对茶园土壤物理性状的影响。设置免耕(MG)、高地隙多功能茶园管理机械卧式旋耕(WX)、立式旋耕(LX)、深松铲耕(SS)和小型茶园翻耕机翻耕(FG)5种耕作方式,分析其对茶园0~45 cm土壤紧实度、容重和固、液、气三相比的影响。结果表明,与免耕对土壤物理性状的影响相比,深松铲耕处理对0~30 cm土壤紧实度的降低作用最好,卧式旋耕处理对30~45 cm土壤紧实度的降低作用最好;卧式旋耕、立式旋耕处理对0~15 cm土层土壤容重、孔隙度、三相比的改善作用最好,翻耕处理对15~30 cm土层土壤容重、孔隙度、三相比的改善作用最好。可见,高地隙多功能茶园管理机械的最佳耕作方式为卧式旋耕,在不适宜大型机械作业的茶园,选用小型茶园翻耕机亦可达到较好的耕作效果。
Effects of Different Mechanized Tillage Methods on Physical Properties of Tea Plantation Soils in Field Experiments. There were 5 types of no-tillage (MG), high-lying multi-purpose tea plantation management machinery horizontal rotary farming (WX), vertical rotary cultivation (LX), deep subsoiling shoveling (SS) Tillage methods were used to analyze the effects of soil compaction, bulk density and solid-liquid-gas ratio at 0-45 cm depth in the tea plantation. The results showed that compared with the no-tillage effect on soil physical properties, Deep-shovel shoveling had the best effect on 0-30 cm soil compaction, and horizontal-type tillage had the most significant effect on soil compaction at 30-45 cm The effect of horizontal rotary tillage and vertical rotary tillage on the improvement of soil bulk density, porosity and three-phase in 0 ~ 15 cm soil layer is the best. Tillage treatment of soil bulk density, Porosity, the best three-phase improvement. Visible, high-lying multi-functional tea garden management machinery for farming the best way for horizontal rotary tilting, not suitable for large-scale mechanical operations of the tea plant, the selection of small tea garden tiller can achieve better farming effect.