Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 7.
  1. Library Resource
    Articles et Livres
    décembre, 2003

    Increasingly, landowners are establishing hardwood plantations to satisfy their land management goals. Unfortunately, little is known about how competition control affects initial seedling survival and subsequent investment returns for hardwood plantations. This study examines five alternative competition control regimes for southern oak establishment. The regimes include no site preparation, disking only, sub-soiling with rotary mowing, herbicides only, and herbicides with rotary mowing and sub-soiling.

  2. Library Resource
    Articles et Livres
    décembre, 2003

    Loggers play a critical role in managing forest resources. This study focused on understanding loggers' attitudes-information that we believe would be useful for improving communications and ultimately improving forest practices. Through interviews and a mail survey, four themes emerged, providing insight into loggers' attitudes: (1) Pennsylvania loggers are proud of their industry, (2) Public pressure is affecting the logging industry, (3) Loggers are concerned about the future, and (4) Loggers, foresters, and landowners need to improve their communications.

  3. Library Resource
    Articles et Livres
    décembre, 2003

    Traditional varieties or land races from diverse rice growing ecosystems serving as repository of desirable gene pools for rice improvement including rice hybrids have been marginalized or are at the verge of perhaps total genetic erosion. Biotechnology patent systems and intellectual property rights intrinsic with genetically engineered rices weigh in at odds, competing with these good grain qualified traditional rices.

  4. Library Resource
    Articles et Livres
    décembre, 2003

    Extensive livestock farming systems in the Less Favored Areas (LFA) of the European Union (EU) are under social stress and requirement to adapt their production practices to new economic and social realities. This research argues that a restructuring plan for the cereal-sheep system of Castile-La Mancha may represent economic and ecological synergies. The potential implementation of a technical strategy (integrating cereal and sheep farming and increasing acreage of annual forage legumes) has been tested within a community-based research project carried out over three phases.

  5. Library Resource
    Articles et Livres
    décembre, 2003
    Nigéria

    The Nigerian savanna soils are low in fertility, organic matter and cation exchange capacity. The traditional method of improving the fertility and productivity of soils of the savanna is through natural fallowing which typically takes three to five years. The method is no longer suitable for most farmers because of the rapid growth of population in developing countries and the resulting intensive cultivation of agricultural land. In this study, a short fallow technique was adopted using forage legumes. Selected soil chemical properties were also evaluated.

  6. Library Resource
    Articles et Livres
    décembre, 2003
    Nigéria

    A major reason given for the decline in per capita food production in Nigeria over the last two to three decades is the gradual decline in land productivity. Available information shows that in southern Nigeria, for example, there was recorded a consistent decline in yield per hectare of major food crops between 1995 and 2000. Evidence from the literature suggests that the main reason for this persistent decline in soil productivity is the perpetuation of unsustainable soil management practices by small food crop farmers that dominate the food production landscape in the country.

  7. Library Resource
    Articles et Livres
    décembre, 2003
    Sri Lanka

    Many attempts, which were aimed at promoting Sustainable Agricultural Systems (SAS) in Sri Lanka failed due to poor acceptance by farmers. This situation still exists in spite of the formidable scientific evidence that supports the physical effectiveness of these systems to solve the respective problems. Factors that lead to poor acceptance of SAS by farmers can be broadly categorized as system specific factors and general factors that affect all systems commonly.

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