Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 5.
  1. Library Resource
    Articles et Livres
    décembre, 2007
    Brésil

    The productivity of different lettuce groups and roquette was evaluated when sown in two different periods and cultivated either singly or intercropped. Theses experiments were carried out in Jaboticabal, São Paulo State, Brazil. The first growing period was from May to August (Autumn-Winter) and the second from September to November (Spring) of 2001. The experimental design was a randomized complete block with four replications. The treatments consisted of the combination of the following factors levels: lettuce groups (crisp, cv. Vera; looseleaf, cv. Elisa; and crisphead lettuce, cv.

  2. Library Resource
    Articles et Livres
    décembre, 2007

    The advance of the agricultural frontier, characterized by the conversion of natural ecosystems into cultivated areas, was intensified in the last decades. Most of the practices used to manage soils cause changes in the soil quality and soil organic matter (SOM) dynamics. Studying the impact of different management systems is essential to choose the most adequate soil management practices.

  3. Library Resource
    Articles et Livres
    décembre, 2007

    The objective of this study was to analyze the growth of tree species planted in a topographic gradient in an area degraded for the construction of the dam of Camargos Hydroeletric plant, MG. At 155 months after planting, three transects following the slope, 15 m wide and variable length were allocated, subdivided in parcels of 12 x 15 m along the topographic gradient. Plants with diameter at breast height (DBH) 5 cm were identified and measured (DBH and height).

  4. Library Resource
    Articles et Livres
    décembre, 2007

    The work has as objective to investigate, using data published by the Institute for Colonization and Land Reform (INCRA), the changes in land distribution in the North and Northwest regions of the Rio de Janeiro state, in the period from 1972 to 1998. The Gini index, the average area, the percentage of the area corresponding to the 5% largest landholders, and the percentage of the area corresponding to the 50% smallest landholders, were used to describe the profile of the land distribution. The results show significant differences between the studied regions.

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