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不同机械耕作方式对茶园土壤物理性状的影响
张永利,廖万有,王烨军,苏有健,孙力
0
(安徽省农业科学院茶叶研究所,祁门 245600)
摘要:
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。
关键词:  茶园机械  耕作方式  土壤容重  三相比  土壤紧实度
DOI:10.13610/j.cnki.1672-352x.20151102.028
投稿时间:2015-04-16
基金项目:现代农业产业技术体系建设专项资金(CARS-23-03A)资助。
Effects of different tillage modes on physical properties of tea garden soil
ZHANG Yongli,LIAO Wanyou,WANG Yejun,SU Youjian,SUN Li
(Tea Research Institute, Anhui Academy of Agricultural Sciences, Qimen 245600)
Abstract:
In order to study the influence of different tillage modes on physical properties of tea garden soil, five different tillage modes were adopted in a field experiment. They were no-till (MG), horizontal rotary tillage (WX) by the high-clearance self-propelled multi-function tea farm manager (HSM), vertical rotary tillage by HSM (LX), subsoiling by HSM (SS), and plowing by a mini-type cultivation management machine (FG). Effects of different tillage modes on soil compactness, soil bulk density and three-phase ratio of soil in the 0-45 cm soil layers in tea garden were analyzed after the 27-day experiment. The results showed that compared with the effect of MG on soil physical properties, SS and WX had the best effect on reducing the soil compactness in 0-30 and 30-45 cm soil layer, respectively. WX and LX showed the best result on improving soil bulk density, porosity, and three-phase ratio in 0-15 cm soil layer. While FG showed the best on improving soil bulk density, porosity, and three-phase ratio in 15-30 cm soil layer. Therefore, the best tillage mode for high-clearance self-propelled multi-function tea farm management is horizontal rotary tillage. In tea gardens where the large-scale machinery is not applicable, the mini-type cultivation management machine is a better choice and can bring a desirable effect.
Key words:  tea garden machinery  tillage mode  soil bulk density  three-phase ratio of soil  soil compactness

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