Search Result For: Book Key Resources - Soil Fertility & Plant Nutrition

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1194 đề mục được tìm thấy (Hiển thị 1 - 10)

  1. An Introduction To Soil Fertility

    Tài Nguyên Chính
    20-01-2009 All plants need certain mineral elements for proper growth, development, and maintenance. The basic structure of all organisms is built of carbon (C), oxygen (O) and hydrogen (H). Plants obtain these elements from water (H2O) in the soil and carbon dioxide (CO2) in the air, so no input is...
    Acidic Soil Soil Fertility Soil Nutrients Plant Nutrition Soil Health Plant Health
     

  2. ECHO Asia Intro to Soil Science

    Tài Nguyên Chính
    This 4 part training gives a broad overview and introduction to some basic soil characteristics: phases (solid, liquid, gas), texture, density, structure, reaction (pH), plant-water relationships, organic matter, biology and nutrients. After some classroom discussion we went head out to into the...
    Soil science Soil Profiles Soil Testing Plant Health Asia
     

  3. Best Practices in Conservation Agriculture

    Tài Nguyên Chính
    28-09-2016 Farmers in many parts of the world, because of human population growth, have little choice but to crop their land continuously, with scarce resources to replace nutrients withdrawn by each successive crop. Crop residues are often lost as a source of organic matter and mulch, usually through...
    Conservation Agric... Mulch Soil Conservation Plant Diversity Crop Diversity Soil Disturbance Soil Fertility Soil Remediation Soil Erosion
     

  4. Nutrient Quantity vs Access

    Tài Nguyên Chính
    01-01-2014 In order to achieve high levels of agricultural productivity in the tropics at the lowest possible economic and ecological costs, we need to properly understand the relationship between nutrients in the soil and crop productivity. For this to happen, the current understanding needs to change. The...
    Soil Nutrients Ecological Restora... Soil Fertility Agricultural Produ...
     

  5. Best Practices in Improving Degraded Land

    Tài Nguyên Chính
    14-11-2012 The UNCCD estimates that over 250 million people are affected by land degradation, and about 1 billion people in over 100 countries are at risk. According to the WMO, 33% of the world’s land surface is vulnerable to land degradation.Degraded lands lead to overall reduced productivity and reduced...
    Soil Management Soil improvemnt Saline Soils Land Degradation
     

  6. Biochar: An Organic House for Soil Microbes

    Tài Nguyên Chính
    01-06-2013 Rick Burnette wrote an article for Issue 7(July 2010) of ECHO Asia Notes, titled “Charcoal Production in 200-Liter Horizontal Drum Kilns.” My article takes the charring process a step further by exploring the rapidly re-emerging world of biochar. Biochar is a form of charcoal, produced through...
    Soil Microorganisms Biochar
     

  7. Restoring the Soil: A Guide for Using Green Manure/Cover Crops to Improve the Food Security of Smallholder Farmers

    01-01-2012 Strong gradients of decreasing soil fertility are found in many regions of the world. Millions of smallholders are now facing this serious crisis which causes them lower crop yields, and many of these families also suffer from food insecurity. With the aim of promoting recovering soil fertility...
    Soil Fertility Plant Nutrition
     

  8. Nutrient Quantity or Nutrient Access? A New Understanding of How to Maintain Soil Fertility in the Tropics

    20-01-2002 The conventional view of the relationship between soil nutrients and crop productivity in the tropics is leading to both damaging agricultural policies and inefficient and damaging farm-level practices. There is no need to use the huge quantities of chemical fertilizers that are so often...
    Organic Cover Crops Green Manures Acidic Soil Soil Health Plant Nutrition
     

  9. Hướng dẫn dành cho Người Mới Bắt đầu về Nông nghiệp Nhiệt đới Quy mô Nhỏ

    Tài Nguyên Chính
    So you want to help people in the tropics. Beautiful! The tropics are waiting for you. No matter what your abilities, you can make life better for others in the tropics. Your concern for the physical and spiritual well-being of people can be translated into fruitful service. Your first asset is...
    Smallholder Farm Integrated Pest Ma... Integrated System Tropical Agriculture
     

  10. Concentrating Manure near Crop Plants Boosts Soil Fertility

    20-04-2013 An important principle of conservationagriculture is that of targeted, precision applications of organic or inorganic fertilizer near crop plants, as opposed to evenly dispersing inputs over an entire field. In a row-crop setting, this can be done by banding fertilizer next to the crop plants. In...
    Zai Manure Soil Nutrients Zai Pit FFF Soil Fertility