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关键资源2009-01-20 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...
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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...
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Does unsafe food threaten public health in your country? Is the food you eat at risk of contamination? Or, perhaps, has your shipment of agricultural goods been held at the port of entry because of a potential cargo pest infestation? The sanitary and phytosanitary (SPS) plant health distance...
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Plantwise is a global programme led byCABI, which works to help farmers lose less of what they grow to plant health problems. Working closely with national agricultural advisory services we establish and support sustainable networks ofplant clinics, run bytrained plant doctors, where farmers can...
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1998-01-01 In EDN 64-5 we reviewed a report from Lowell Fuglie of the Church World Service in Senegal on his successful project with Moringa oleifera. He has published another book with CTA (Technical Centre for Agricultural and Rural Cooperation ACP-EU) on natural crop protection in West Africa. Part one...
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关键资源 2012-01-20 Plant Pathology, Third Edition, provides an introduction to the fundamental concepts of plant pathology, incorporating important new developments in the field. The present volume also follows closely the organization and format of the Second Edition. It includes two new chapters, ""Plant Disease...
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Access Agriculture Training Video Onions grow well under many different conditions, but when grown in the rainy season onions have a greater chance of getting sick. Onion diseases can make the leaves fold and reduce your yield. Diseases can spread with soil, seed or infested crop residues. ...
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Access Agriculture Training Video Onions need rich, fertile soil. Only grow onions once in 3 years in the same field. Plant the onions on raised beds, especially in the rainy season. Transplant when the onions are about 6 weeks old. Plant the onions 10 centimetres apart. By taking good care of...
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- Abstract, There are various ways in which plant nutrient supply or concentration affects plant diseases and pests. The supply of nutrients changes the resistance of plants to pathogens and pests by altering growth and tissue composition (e.g., concentration of soluble compounds or defence...
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俗话说“你不知道你有一个问题你就不可能解决问题”，这是诊断植物营养缺乏基础科学的支撑。多年来，很多农民和科学家一起工作，通过多种线索来判断农作物的营养缺乏。这些线索和症状十分有用，特别是在土壤和植物组织试验做不了或行不通时。