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471 đề mục được tìm thấy (Hiển thị 1 - 10)

  1. American Society of Agronomy

    Agronomy looks at agriculture from an integrated, holistic perspective. Agronomists are specialists in crop and soil science, as well as ecology. Some things they look at are: Theproperties of the soil; How thesoil interactswith the growing crop; Whatnutrients (fertilizers) the crop needs; When...
    Agronomy
     

  2. Pigeon Pea

    Tài Nguyên Chính 01-01-1990 I often tell folks that ECHO specializes in growing food under difficult conditions. The pigeon pea, Cajanus cajan, is a prime example of a tough but nutritious plant for just such cases. This article is directed toward two audiences. For some of you, pigeon pea is already an important crop. You...
    Pigeon Pea Cajanus cajan
     

  3. Preventing Insect Damage of Stored Seed Using Low-Cost Control Options

    Tài Nguyên Chính
    This article is from ECHO Asia Note # 37. Seed saving in sub-tropical and tropical climates is challenging. Without equipment designed to maintain dry and cool environments, the quality of seeds may quickly deteriorate. High temperature and humidity during storage increase seed metabolism and...
    Seed Storage Bruchids Pest Control
     

  4. Agronomie Africaine

    International journal published by The Ivorian Association for Agricultural Sciences (A.I.S.A) The creation of a scientific journal called "AGRONOMIE AFRICAINE" (Agron. Afr.) by the Ivorian Association for Agricultural scientists (AISA) is meant to bring the modest contribution of its members to...
    Journal Agronomy West Africa
     

  5. Two Contrasting Laboratory Methods Improve Silphium integrifolium Michx. Germination Rate to Agronomically Acceptable Levels

    Abstract, 2018, Euphytica Organic dormancy, the inability to germinate under favorable conditions, is a common problem in many crop species and their wild relatives, leading to more variable emergence, plant density, and growth rates, thus increasing costs, and lowering yield. To overcome these...
    Germination Agronomy
     

  6. Acid Soils of the Tropics

    Tài Nguyên Chính
    01-01-2002 Acidification of soil is a natural process with major ramifications on plant growth. As soils become more acid, particularly when the pH drops below 4.5, it becomes increasingly difficult to produce food crops. As soil pH declines, the supply of most plant nutrients decreases while aluminum and a...
    Soil Micronutrients Acidity Alkaline Nitrate Ammonium Fertilizer Lime Calcium Soil pH
     

  7. Carbon Farming: Building Soils and Stabilizing the Climate

    Tài Nguyên Chính
    23-07-2015 Climate change will have a huge impact on the world’s poorest people. Crop yields have already gone down in the tropics and are projected to drop by 15-30% by 2080 in Africa, South Asia, and Central America (Hoffman 2013). Some countries could reach a 50% loss of agricultural productivity; in...
    Carbon Sequestration
     

  8. Creating a Low-Cost Seed Dryer for Use in Local Seed Banks

    Tài Nguyên Chính
    This article is from ECHO Asia Note # 31. Saving your own seeds can be a cost-effective way to access crop seed for future planting and to help maintain the planet’s plant biodiversity. Whether you plant your own saved seeds, give them away to friends and neighbors, or distribute them through...
    Seed Bank Seed Drying Seeds Asia
     

  9. Preparing for Agricultural Missions

    Tài Nguyên Chính 01-04-2006 There are two parts to this document; part 1 provides a brief description of the things a college student should consider as he/she chooses opportunities for learning and part 2 lists organizations that provide some practical training. The second section will be most useful for individuals...
    Agricultural Devel... Agricultural Missions
     

  10. Vacuum-Sealing Options for Storing Seeds

    Tài Nguyên Chính
    07-01-2019 Two broad categories of seeds exist, referred to as recalcitrant and orthodox. The former must be kept moist and planted soon after they are collected; large-seeded fruits such as mango and avocado are typical examples. The second type of seeds are discussed in this document. Orthodox seeds are...
    Seed Storage Vacuum Sealing Seed Saving Seed Bank Stored seed pests