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Author : Anonim
Publisher : ICARDA
Page : 72 pages
File Size : 51,7 Mb
Release : 2024-06-15
Category : Electronic
ISBN : 9789291272402
Author : Jan Moudrý,Jaroslav Bernas,Kassio Ferreira Mendes,Rodrigo Nogueira de Sousa,Rafael Da Silva Teixeira
Publisher : BoD – Books on Demand
Page : 208 pages
File Size : 55,8 Mb
Release : 2020-07-22
Category : Technology & Engineering
ISBN : 9781789859317
Organic farming aims to produce a number of crops, without the use of synthetic chemicals (pesticides) or fertilizers, while enhancing soil composition and promoting biodiversity. This is a traditional, more permanent type of farming that relies on ecosystem services to maintain the integrity of the landscape while still producing sufficient yields. In addition, conventional farming uses pesticides and fertilizers to maximize the yield of a particular crop or set of crops, which are typically genetically modified. This book covers several issues related to the multi-functionality and impacts of organic and conventional farming systems. Chapters cover topics related to organic farming and the economy, farm management, and innovative methods and approaches.
Author : I. P. Abrol,Jai Singh Pal Yadav,F. I. Massoud
Publisher : Food & Agriculture Org.
Page : 148 pages
File Size : 53,6 Mb
Release : 1988
Category : Science
ISBN : 9251026866
Origin,classification and distribution of salt-affected soils;saline soils and their management;sodic soils and their management;salinity problems of the dryland regions;water quality and crop production;socio-economic considerations in reclamation and management of salt-affectedsoils;
Author : Mohammad Hassan Roozitalab,Hamid Siadat,Abbas Farshad
Publisher : Springer
Page : 255 pages
File Size : 45,6 Mb
Release : 2018-03-30
Category : Nature
ISBN : 9783319690483
This unique book addresses Iran’s extremely rich soil diversity and resources, which have developed under various climatic conditions ranging from dry to humid conditions. Featuring contributions by a group of respected experts on Iranian soils and agriculture, it provides comprehensive information on the management approaches needed for sustainable soil utilization and conservation under such conditions, and the attendant challenges. As such, it offers a valuable resource for anyone interested in soils and agriculture in Iran, but also in other Middle East and North African countries with similar climatic conditions. The book contains 14 chapters which illustrate the long history of indigenous knowledge and soil research, climate, geology and geomorphology, vegetation cover, soil forming factors and processes, major soils, properties and their classification. Furthermore, it presents past climate change and paleosols, agroecological zones, soil fertility, soil biology and biotechnology, human induced land degradation and “soil management in space and time”. In the end, major challenges facing the soil resources of the country are defined and recommendations are made to face the future challenges.
Author : Fereidoun Ghassemi,A. J. Jakeman,H. A. Nix
Publisher : UNSW Press
Page : 552 pages
File Size : 50,5 Mb
Release : 1995
Category : Nature
ISBN : 0851989063
Human-induced salinisation is a major threat to the world's land and water resources. Inadequate development of irrigation projects, inefficient irrigation, lack of proper drainage, and environmental mismanagement such as the clearing of native vegetation, are responsible for the loss of millions of hectares of agricultural and grazing land, as well as the misuse of scarce water resources. The first part of this book analyses the problem in the context of the world's population, its climate and its land and water resources. It reviews irrigation methods and crop water requirements, the processes of salinisation, and its management. The second part describes irrigated land, dryland and water-resource salinity problems in 11 countries, which contain approximately 70 per cent of the world's irrigated land. In each case study, background data, environmental conditions and past management practices are given to provide an understanding of why salinity occurs in particular places, and of the management methods employed against it.
Author : Shabbir A. Shahid,Mahmoud A. Abdelfattah,Faisal K. Taha
Publisher : Springer Science & Business Media
Page : 808 pages
File Size : 45,7 Mb
Release : 2013-01-15
Category : Nature
ISBN : 9789400756847
The papers assembled here cover topics such as technological advances in soil salinity mapping and monitoring, management and reclamation of salt-affected soils, use of marginal quality water for crop production, salt-tolerance mechanisms in plants, biosaline agriculture and agroforestry, microbiological interventions for marginal soils, opportunities and challenges in using marginal waters, and soil and water management in irrigated agriculture.
Author : A.K. Kolay
Publisher : Atlantic Publishers & Dist
Page : 252 pages
File Size : 53,7 Mb
Release : 2008
Category : Crops
ISBN : 8126908416
No crop can be grown without being adequately supplied with the requisite amount of water at the proper time. A thorough knowledge of the hydrological cycle, amount and distribution of rainfall, water resources and irrigation projects in India facilitates efficient utilization of water for crop production. Inadequate supply of water to crops in semi-arid and arid regions adversely affects agricultural production. Properties of water, the mode of its entry into the soil and its absorption by roots of crops are important for irrigation. This necessitates accurate determination of the soil moisture content, the plants and available water which is essential for growth and yield of crops. Its deficiency adversely affects their growth and yield. Irrigation must be extended to unirrigated areas in order to increase the production of food, fibre and fodder for which we must know the source of irrigation water, units and methods of measurement of water, methods of irrigating crop fields, factors affecting the choice of irrigation methods, the degree of the suitability of the available water for irrigating crops and the factors affecting the suitability of water for irrigation. As water is a relatively scarce commodity, we must know whether water of a little inferior quality can be utilized to irrigate crops. In addition, we must be familiar with the precautions which need to be taken in this regard. The accumulation of excess water in the soils of the crop fields affects the growth of crops adversely enough to reduce their yields. Choice of the method of land drainage varies with the variation in the topography of the land. It is also necessary to rectify the causes of waterlogging to bring the waterlogged land back under the plough to increase agricultural production. This necessitates drainage investigation and laying out of the proper drainage system. Water requirement of crops depends on the climate and the crop. More water is required to produce crops in the arid region than in the humid region. Crops like paddy and sugar cane require much larger amount of water than finger millet and pearl millet. The book extensively deals with all these aspects related to soil and crop production and suggests measures to enhance productivity through water conservation and proper management of water resources. It will be highly useful for the students, teachers and researchers working in this field. Besides, agriculturists and general readers will also find it useful and informative.
Author : J. W. Kijne
Publisher : IWMI
Page : 44 pages
File Size : 47,8 Mb
Release : 1998
Category : Technology & Engineering
ISBN : 9789290903536
Acronyms; Glossary; Abstract; Introduction; Problems; Chemical processes involved in salinization; Physical processes involved in salinization; Impact of irrigation-induced salinity on plant growth; Remedial management actions; Farmers response to salinity; Discussion; Conclusions.
Author : R. Chhabra
Publisher : Routledge
Page : 318 pages
File Size : 53,6 Mb
Release : 2017-11-13
Category : Technology & Engineering
ISBN : 9781351415699
This volume covers such areas in the field of soil salinity and water quality as: origin and distribution of salt-affected soils; management of alkali soils; quality criteria of irrigation water; wastewaters as a source of irrigation; and grasses and trees in the management of salt-affected soils.
Author : Anonim
Publisher : Unknown
Page : 12 pages
File Size : 49,7 Mb
Release : 1958
Category : Salinity
ISBN : UIUC:30112019260311
Author : Dan Yaron
Publisher : CRC Press
Page : 448 pages
File Size : 45,6 Mb
Release : 1981-02-01
Category : Science
ISBN : 0824767411
The salinity problem in irrigation:an introductory review; evaluation and classification of water quality for irrigation;effescts of salinity and soil water regime on crop yelds; irrigation and soil salinity; fertilization and salinity;impact of irrigation on the quality of groundwater and river flows; economic evaluation of irrigation with saline water withim the framework of farm,Economic impacts of regional economic effects of changes in irrigation water salinity within a river basin framework; the case of the colorado river.
Author : Manzoor Qadir
Publisher : ICARDA
Page : 115 pages
File Size : 53,6 Mb
Release : 2009
Category : Saline irrigation
ISBN : 9789291272426
Contributed articles.
Author : International Atomic Energy Agency
Publisher : Unknown
Page : 182 pages
File Size : 40,6 Mb
Release : 2020
Category : Crops and water
ISBN : 9201106203
Author : I.C. Gupta, S.K. Gupta
Publisher : Scientific Publishers
Page : 239 pages
File Size : 52,9 Mb
Release : 2018-01-17
Category : Technology & Engineering
ISBN : 9789388449489
The book has been logically divided into 8 chapters, successively dealing with the technological components in each chapter. Most of the issues that have been discussed for waterlogged inland saline soils have been briefly discussed in the last 8th Chapter, for the coastal regions. Finally the socio-economic aspects which are important to decide the economic viability of rehabilitation projects have been included in the last chapter. Computer programmes have been included, which is the modern approach in dealing with issues of design and development.
Author : Qadir, M. ,Noble, Andrew D. ,Karajeh, F. ,George, B.
Publisher : International Water Management Institute (IWMI). CGIAR Research Program on Water, Land and Ecosystems (WLE).
Page : 34 pages
File Size : 40,5 Mb
Release : 2015-06-11
Category : Technology & Engineering
ISBN : 9789290908166