Soil physical attributes under grazing intensities and methods with lambs on integrated crop-livestock systems

被引：4

作者：

Carassai, Igor Justin ^{[1
]}

de Faccio Carvalho, Paulo Cesar ^{[1
]}

Cardoso, Raquel Rolim ^{[1
]}

Cassol Flores, Joao Paulo ^{[1
]}

Anghinoni, Ibanor ^{[1
]}

Nabinger, Carlos ^{[1
]}

de Freitas, Fabiana Kellermann ^{[1
]}

Macari, Stefani ^{[1
]}

Trein, Carlos Ricardo ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Fac Agron, BR-91501970 Porto Alegre, RS, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2011年 / 46卷 / 10期

关键词：

Glycine max; Lolium multiflorum; soil compaction; soil compressibility; continuous stocking; rotational stocking; PASTURE GROWTH; SHEEP; IMPACT; DENSITY; MATTER;

D O I：

10.1590/S0100-204X2011001000024

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to evaluate possible alterations in the soil bulk density and total porosity due to lamb trampling, under different grazing management after no-tillage summer crop. The experiment was carried out in the layers 0-2.5, 2.5-5 e 5-10 cm of an arenic Ultisol, in an annual ryegrass pasture with forage allowance of 2.5 and 5.0 of animal potential consumption, under continuous and rotational stocking. An ungrazed area was used as check. Grazing intensities and methods did not affect soil bulk density and total porosity. It is possible to use areas with this kind of soil texture, with cover crops for lamb grazing in the winter, without alterations on soil physical attributes, caused by animal trampling, reach harmful levels for subsequent crops.

引用

页码：1284 / 1290

页数：7

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