Sustainable Dryland Cropping in Relation to Soil Productivity PDF Download
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Author: C. J. Pearson
Publisher: Food & Agriculture Org.
ISBN: 9789251037928
Category : Technology & Engineering
Languages : en
Pages : 164
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Book Description
Author: C. J. Pearson
Publisher: Food & Agriculture Org.
ISBN: 9789251037928
Category : Technology & Engineering
Languages : en
Pages : 164
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Book Description
Author: S.C. Rao
Publisher: Scientific Publishers
ISBN: 9387991091
Category : Technology & Engineering
Languages : en
Pages : 434
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Book Description
The world has made remarkable progress in maintaining adequate food supplies during the past quarter century by introducing yield-increasing technologies such as better genetics, crop protection products, and more efficient use of fertilizers and irrigations. Far more people depend on irrigation in the modern world than during the times of ancient Sumeria. The spread of irrigation has been the key factor in increasing global crop yields. But future scarcity present the single biggest threat to future food production. The shift of water from agriculture to the growing cities and industry almost certainly will impact global food production. This means that dryland agriculture will be increasingly important in meeting food requirement for the growing population. Advaces in plant genetics and agronomic conservation technologies, when considered in concert, continue to provide the greatest opportunities to achieve sustainability and profitability in dryland agriculture and will continue to be the focus of the ARS research program. The ARS is please to join the crop Science Society of America and international center for Agriculture Research in Dry Areas (ICARDA) in sponsoring a symposium “Challenges and strategies for Dryland Agriculture” at the Trisocieties Annual Meeting in November 2002 at Indianapolis, IN. This special publication contains an impressive series of paper by international group of experts on dryland agricultural production, conservation, and policy. The principles, philosophies, and technologies presented in this publication have the potential to contribute to improve food security and livelihoods for the people in dryland regions of the world.
Author: Robert Paul Zentner
Publisher:
ISBN:
Category : Arid regions agriculture
Languages : en
Pages : 24
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Book Description
Since the early 1900s, more than 68 long-term crop rotation studies have been conducted, with 20 of these studies still continuing. This publication, which focuses on the period since the 1950s, summarizes the effects of rotation length, crop sequence, substitute crops for summer fallow, and fertilization using nitrogen and phosphorus on crop production and quality, pests, soil moisture, nitrogen and phosphorus uptake, soil quality, profitability, and energy efficiency. Highlights from these studies are discussed under each topic. Recommendations are given on how to run an efficient, economical, and environmentally responsible farming operating on the Canadian prairies.
Author:
Publisher: Springer Science & Business Media
ISBN: 1461389828
Category : Science
Languages : en
Pages : 378
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Book Description
From the beginning of agriculture until about 1950, increased food production came almost entirely from expanding the cropland base. Since 1950, however, the yield per unit of land area for major crops has increased dramatically. Much of the increase in yields was because of increased inputs of energy. Between 1950 and 1985, the farm tractor fleet quadrupled, world irrigated area tripled, and use of fertilizer increased ninefold. Between 1950 and 1985, the total energy used in world agriculture increased 6. 9 times. Irrigation played a particularly important role in the rapid increase in food production between 1950 and 1985. The world's irrigated land in 1950 totaled 94 million hectares but increased to 140 million by 1960, to 198 million by 1970, and to 271 million hectares in 1985. However, the current rate of expansion has slowed to less than 1 % per year. The world population continues to increase and agricultural production by the year 2000 will have to be 50 to 60% greater than in 1980 to meet demands. This continued demand for food and fiber, coupled with the sharp decline in the growth rate of irrigation development, means that much of the additional agricultural production in future years must come from cultivated land that is not irrigated. Agricultural production will be expanded in the arid and semiarid regions because these regions make up vast areas in developing countries where populations are rapidly rising.
Author: Suleiman Usman
Publisher: GRIN Verlag
ISBN: 3640921046
Category : Technology & Engineering
Languages : en
Pages : 114
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Book Description
Master's Thesis from the year 2007 in the subject Agrarian Studies, grade: Merit class, Natural Resources Institute - University of Greenwich at Medway (-), course: Plant Health and Protection, language: English, abstract: Although it is widely recognised that environmental problems such as soil degradation erosion and desertification threaten sustained agricultural production in many States of northern Nigeria including Adamawa, Bauchi, Borno, Gombe, Jigawa, Kaduna Kano, Katsina, Kebbi, Sokoto and Zamfara. Very little information is available about the current status of the potential impact of soil degradation and whether the situation is worsening in all the States of northern Nigeria. However, it is now clear that the major factor explaining the severity and spatial distribution of soil degradation such as erosion and desertification in northern Nigeria is associated with human impact such as deforestation and mismanagement of land resources. Other factors includes overgrazing, use of mechanized equipment, deforestation and lack of government concern to protect the environment in the region, but few studies have been made on applied issues related to the physical and chemical processes including erosion, runoff and leaching. These problems are widely considered as a serious problem to agricultural production and its environmental consequences will remain an important issue during the 21st century. Possible solutions such as soil management practices will help to minimise/control soil degradations which caused serious hazards to farmer’s land in northern Nigeria. Sustainable soil management practices are vital for enhancing and sustaining the productivity of soil, food, livestock, water quality and other related land resources such as forestry in northern Nigeria. It is more efficient in terms of reduced environmental impact, high risk of soil degradation and soil erosion. These management practices are: (a) applying organic manure regularly, (b) growing cover crops in rotation with millet/sorghum, (c) Intercropping and multiple cropping systems, (d) crop rotation system, (e) planting shelter belt around the farm (f) minimum tillage system, (g) good drainage system and (h) good government policies. However two steps will help to achieve the successful implementaion of those management practices in northern Nigeria. These are: (a) good government policies with quality initiative and (b) general cooperation from individual, community and people in concerned.
Author: Muhammad Farooq
Publisher: Springer
ISBN: 3319479288
Category : Technology & Engineering
Languages : en
Pages : 571
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Book Description
This book is a ready reference on recent innovations in dryland agriculture and reinforces the understanding for its utilization to develop environmentally sustainable and profitable food production systems. It covers the basic concepts and history, components and elements, breeding and modelling efforts, and potential benefits, experiences, challenges and innovations relevant to agriculture in dryland areas around world.
Author: DIANE Publishing Company
Publisher: DIANE Publishing
ISBN: 9781568067131
Category :
Languages : en
Pages : 38
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Book Description
Discusses and describes the process of dryland farming, specifically in the Pacific Northwest.
Author: S. Lakshmikanthamma
Publisher: M.D. Publications Pvt. Ltd.
ISBN: 9788175330337
Category : Business & Economics
Languages : en
Pages : 356
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Book Description
Study restricted to the Mittemari micro watershed in Kolar District, Karnataka.
Author: A.M. Dhopte
Publisher: Scientific Publishers
ISBN: 9388449924
Category : Nature
Languages : en
Pages : 460
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Book Description
Sustainability is extremely important in dryland farming under global climatic change. Technology devised by various agricultural institutions is provided in this book.Variation in environmental factors may influence entire ecological system which may not be ideal for agriculture. Under such global scenario , plant growth is under geopardy. New varieties have to be developed to suit the varied climate or crop strategy in view of crop domain suiting ideal available temperature has to be framed to make dryland farming sustainable .Various agrotechnology needs to be adapted to avoid depletion in productivity. Global climatic change in future may limit the productivity of available varieties. Corporate farming may come to rescue the problem under present scenario. Various agrotechnologies described in this book may help the farmers and planners to overcome the situation in future. Critical problems have been dealt with probable solutions to suit the requirements .Multicropping system , organic farming, , watersheds promotion, reclamation of degraded soils, soil health cards, use of portrals of weather forecast, early harvest on physiological maturity and use of instant remedies timely under unfavourable season shall ease the failure of crop . Long outstanding demand has thus fulfilled with this book.
Author: David Granatstein
Publisher:
ISBN:
Category : Arid regions agriculture
Languages : en
Pages : 100
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Book Description
Provides detailed information for dryland farmers in the Northwestern U.S.
