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首页> 外文期刊>Revista rvore >Manejo mecanico e cultura de cobertura na entrelinha da seringueira (PB 235 e RRIM 701) e os atributos físicos de um latossolo vermelho no Planalto Paulista
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Manejo mecanico e cultura de cobertura na entrelinha da seringueira (PB 235 e RRIM 701) e os atributos físicos de um latossolo vermelho no Planalto Paulista

机译：在橡胶树的覆盖范围内的机械管理和文化（PB 235和RRIM 701）和SãoPaulo高原的红色拉特酚的物理属性

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This work aimed to mechanically evaluate the effect of soil management between rubber tree rows using heavy bars and rotary mowers and cover crop on the physical properties of the soil. Thus, rubber trees (PB 235 and RRIM 701) were established in a Dystrophic Hapludox soil in Jaboticabal-SP in 1992, so that the spaces between the rows were managed with heavy bars, rotary mowers and tropical Kudzu crop cover (Pueraria phaseoloides). After eight cropping years, some physical attributes of the soil (density, macro and microporosity, particle size and water clay dispersion)were analyzed in the rows. The mechanical and cover crop management in the space between the rows had affected the physical properties of the soil, especially porosity and density although not influencing significantly soil particle size. The greatest physical alterations in the soil in function of the management of the space between the rubber tree rows became evident only in the superficial layer of the soil (0-20 cm). Rotary mower management significantly reduced soil porosity (0.08-0.04 m3/m3) and increased soil density (1.4-1.5 kg/dm3) while management with heavy bars did not degrade the physical properties of the soil compared with the rotary mowers and crop cover using tropical Kudzu.
机译：这项工作旨在使用沉重的杆和旋转割草机械地评估橡胶树排之间土壤管理的影响，覆盖土壤物理性质的作物。因此，1992年在Jaboticabal-SP的营养不良Hapludox土壤中建立了橡胶树（PB 235和RRIM 701），使得行之间的空间用沉重的杆，旋转割草和热带kudzu作物覆盖（Pueraria phopsoloides）进行管理。在八个裁剪年后，在行中分析了土壤（密度，宏观和微孔，粒度和水粘土分散体）的一些物理属性。行之间的空间中的机械和覆盖作物管理影响了土壤的物理性质，尤其是孔隙率和密度，尽管不影响土壤粒径显着。在橡胶树行之间的空间的管理中，土壤中最大的物理改变仅在土壤的浅层（0-20厘米）中明显。旋转割草机管理显着降低了土壤孔隙率（0.08-0.04m3 / m3），土壤密度增加（1.4-1.5 kg / dm3），而具有沉重条的管理与旋转割草机和裁剪覆盖相比，使用重杆的管理没有降低土壤的物理性质热带kudzu。

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