Density and soil resistance to root penetration in agroecosystems in the Brazilian semiarid

Density and soil resistance to root penetration in agroecosystems in the Brazilian semiarid

Gabriela Carvalho Maia de Queiroz, Francisco Wellington Andrade da Silva, Jeane Cruz Portela, Valéria Nayara Silva de Oliveira, Mikhael Varão dos Santos

Inadequate soil management modifies its attributes, culminating in the loss of its product quality. Given the above, the objective of this study was to evaluate the attributes of a cambisol in Agroecosystems, in the Land of Hope Settlement project, in the municipality of Governador Dix-Sept Rosado, in Rio Grande do Norte, through the statistical technique Multivariate. Soil samples were collected with the deformed and undisturbed structure to perform physical and chemical analyses, and the collections were made in the layers of 0-5 and 5-10 cm, in three replications. The physical attributes evaluated were: granulometry, particle density and soil density, soil resistance to penetration carried out in a field with a penetrometer, and total soil porosity. The chemical attributes were: electrical conductivity, hydrogenionic potential in water, total organic carbon and macronutrients: calcium, magnesium, phosphorus, potassium and sodium, and subsequently the ability to exchange cations, a sum of bases and Base saturation, and the percentage of exchangeable sodium. The areas of native forest and agroecological area showed similarity among themselves, and the structural attributes soil resistance to penetration and bulk density and the chemical total organic carbon, sodium, potassium, percentage of exchangeable sodium and Electricalconductivity were the most sensitive in the distinction of the environments, in relation to the conventional planting area of intercropped crops, indicating that the soil use systems alter their attributes and that agroecological practices provide improvements and/or maintenance of these.

2019

caatinga, estrutura do solo, manejo agroecológico

10.18378/rvads.v14i4.6355

Revista Verde de Agroecologia e Desenvolvimento Sustentável

Grupo Verde de Agroecologia e Abelhas (GVAA)

Agriculture (General), Geography. Anthropology. Recreation, Environmental sciences