Research Methods in Agricultural Science
$135.00
ISBN 13: 979-8-89143-041-9
YEAR: 2024
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Pests And Diseases
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Together pests and diseases cause up to 40% yield losses every year. The animal groups of the most significant importance as agricultural pests are (in order of economic importance) insects, mites, nematodes, and gastropod mollusks. Insects are responsible for two major forms of damage to crops. First, there is the direct injury they cause to the plants as they feed on the tissues; a reduction in leaf surface available for photosynthesis, distortion of growing shoots, a diminution of the plant's growth and vigor, and the wilting of shoots and branches caused by the insects' tunneling activities.
Pests And Diseases
$135.00
Together pests and diseases cause up to 40% yield losses every year. The animal groups of the most significant importance as agricultural pests are (in order of economic importance) insects, mites, nematodes, and gastropod mollusks. Insects are responsible for two major forms of damage to crops. First, there is the direct injury they cause to the plants as they feed on the tissues; a reduction in leaf surface available for photosynthesis, distortion of growing shoots, a diminution of the plant's growth and vigor, and the wilting of shoots and branches caused by the insects' tunneling activities.
Green Revolution
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Green Revolution, the great increase in the production of food grains that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The new varieties require large amounts of chemical fertilizers and pesticides to produce their high yields, raising concerns about cost and potentially harmful environmental effects. Poor farmers, unable to afford the fertilizers and pesticides, have often reaped even lower yields with these grains than with the older strains, which were better adapted to local conditions and had some resistance to pests and diseases.
Green Revolution
$135.00
Green Revolution, the great increase in the production of food grains that resulted in large part from the introduction into developing countries of new, high-yielding varieties, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The new varieties require large amounts of chemical fertilizers and pesticides to produce their high yields, raising concerns about cost and potentially harmful environmental effects. Poor farmers, unable to afford the fertilizers and pesticides, have often reaped even lower yields with these grains than with the older strains, which were better adapted to local conditions and had some resistance to pests and diseases.
Agriculture In Society
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Agrarian societies are dependent upon agriculture and have been around for more than 5,000 years. Imagine a society of farmers and you'll have a pretty good idea of what an agrarian society is all about. An agrarian society is a society whose economy and wealth are primarily based upon agriculture. Agrarian societies have been around for at least five thousand years. In fact, they still exist today. Nearly every civilization has spent some time as an agrarian society. The ancient Egyptian, Indian, Chinese, and Mayan societies were agrarian. Today, the poorest of the lesser-developed countries are pretty much agrarian societies.
Agriculture In Society
$135.00
Agrarian societies are dependent upon agriculture and have been around for more than 5,000 years. Imagine a society of farmers and you'll have a pretty good idea of what an agrarian society is all about. An agrarian society is a society whose economy and wealth are primarily based upon agriculture. Agrarian societies have been around for at least five thousand years. In fact, they still exist today. Nearly every civilization has spent some time as an agrarian society. The ancient Egyptian, Indian, Chinese, and Mayan societies were agrarian. Today, the poorest of the lesser-developed countries are pretty much agrarian societies.
Agricultural Production
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Agricultural production has always involved the exploitation of resources such as soil, water, and energy. Increasing production to feed a growing world population while at the same time conserving resources for future generations has led to a search for ‘sustainable’ agricultural methods. Farm managers must take a long-term view when making decisions about which technologies to follow and what commodities to produce while still generating sufficient profits in the short run to earn a living. Farm managers must also be aware of possible trends in climatic conditions, and learn how to adapt their production methods accordingly.
Agricultural Production
$135.00
Agricultural production has always involved the exploitation of resources such as soil, water, and energy. Increasing production to feed a growing world population while at the same time conserving resources for future generations has led to a search for ‘sustainable’ agricultural methods. Farm managers must take a long-term view when making decisions about which technologies to follow and what commodities to produce while still generating sufficient profits in the short run to earn a living. Farm managers must also be aware of possible trends in climatic conditions, and learn how to adapt their production methods accordingly.
Agricultural Resources
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Agricultural resources means the land and on-farm buildings, equipment, manure processing and handling facilities, and processing and handling facilities that contribute to the production, preparation, and marketing of crops, livestock, and livestock products as a commercial enterprise, including a commercial horse boarding operation, a timber operation, compost, mulch or other biomass crops, and commercial equine operation.
Agricultural Resources
$135.00
Agricultural resources means the land and on-farm buildings, equipment, manure processing and handling facilities, and processing and handling facilities that contribute to the production, preparation, and marketing of crops, livestock, and livestock products as a commercial enterprise, including a commercial horse boarding operation, a timber operation, compost, mulch or other biomass crops, and commercial equine operation.
Organic Farming and Gardening: Systems and Approaches
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Organic farming – an alternative agricultural system that relies on fertilizers of organic origin such as compost, manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. Biological pest control, mixed cropping, and the fostering of insect predators are encouraged. In general, organic standards are designed to allow the use of naturally occurring substances while prohibiting or strictly limiting synthetic substances.
Organic Farming and Gardening: Systems and Approaches
$135.00
Organic farming – an alternative agricultural system that relies on fertilizers of organic origin such as compost, manure, green manure, and bone meal and places emphasis on techniques such as crop rotation and companion planting. Biological pest control, mixed cropping, and the fostering of insect predators are encouraged. In general, organic standards are designed to allow the use of naturally occurring substances while prohibiting or strictly limiting synthetic substances.
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