Download Free Rice Irrigation Systems For Tailwater Management Book in PDF and EPUB Free Download. You can read online Rice Irrigation Systems For Tailwater Management and write the review.

Section I: Technical considerations for rice-based farming systems: irrigation system management; Section II: Technical considerations for rice-based farming systems: farm-level management; Section III: Technical considerations for rice-based farming systems: farming systems; Section IV: Synthesis papers.
Over the past decade, we have witnessed a growing scarcity of and competition for water around the world. As the demand for water for domestic, municipal, industrial, and environmental purposes rises in the future, less water will be available for agriculture. But the potentials for new water resource development projects and expanding irrigated area are limited. We must therefore find ways to increase the productivity of water used for irrigation. This paper reviews the literature on irrigation efficiency and on the potential for increasing the productivity of water in rice-based systems. It stresses the continuing confusion over the concepts of irrigation efficiency and water productivity. It identifies the reasons for the wide gap between water requirement and actual water input (both irrigation diversions and rainfall) in irrigated rice production systems and discusses potential opportunities for increasing water productivity both on-farm and at the system level. Based on the reported low farm and system level irrigation efficiencies, the potentials for water savings in rice production appear to be very large. But we do not know the degree to which various farm and system interventions will lead to sustainable water savings in the water basin until we can quantify the downstream impact of the interventions. Studies on the economic benefits and costs, and environmental aspects of alternative interventions are also lacking. This paper emphasizes the need to measure the productivity of water at farm, system, and basin levels, and to understand how the productivity at one level relates to the productivity at another. Without water balance studies to measure productivity at these different scales, it is not possible to identify the potential economic benefits of alternative interventions and the most appropriate strategies for increasing irrigation water p productivity in rice-based systems.
ntegrated pest management (IPM) provides a long-term strategy for minimizing losses caused by pests, with as little cost to the grower and disruption of the environment as possible. Written by a collaboration of experts in the field, this detailed manual is designed to help growers apply IPM principles in managing their rice crops. What's Inside? Special sections on crop growth and development and general management practices offer vital background information on using IPM strategies. The chapter on “Managing Pests in Rice” provides a detailed chart of management considerations that will help you plan your IPM program and predict or prevent potential problems before they occur. Vibrant and colorful photographs and descriptions fill the pest sections (weeds, invertebrates, diseases, and vertebrates) to help identify pests and pest damage. An informative glossary is available for looking up definitions of unfamiliar terms. What's new in the 3rd Edition? New exotic pest discussionNew detecting, confirming, and managing herbicide resistance sections21 new photos added for diseases, weeds, and vertebratesColor illustrationsNew life cycle illustrations for each disease3 new diseases and 4 new weeds, including Bakanae, Rice Blast, and Red Rice
ntegrated pest management (IPM) provides a long-term strategy for minimizing losses caused by pests, with as little cost to the grower and disruption of the environment as possible. Written by a collaboration of experts in the field, this detailed manual is designed to help growers apply IPM principles in managing their rice crops. What's Inside? Special sections on crop growth and development and general management practices offer vital background information on using IPM strategies. The chapter on “Managing Pests in Rice” provides a detailed chart of management considerations that will help you plan your IPM program and predict or prevent potential problems before they occur. Vibrant and colorful photographs and descriptions fill the pest sections (weeds, invertebrates, diseases, and vertebrates) to help identify pests and pest damage. An informative glossary is available for looking up definitions of unfamiliar terms. What's new in the 3rd Edition? New exotic pest discussionNew detecting, confirming, and managing herbicide resistance sections21 new photos added for diseases, weeds, and vertebratesColor illustrationsNew life cycle illustrations for each disease3 new diseases and 4 new weeds, including Bakanae, Rice Blast, and Red Rice