Download or read book The Effect of Three Cropping Practices on Organic Matter Content Texture and Aggregation and Cation Exchange Capacity of a Maury Silt Loam Soil written by Richard E. Kinnard and published by . This book was released on 1963 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agrindex written by and published by . This book was released on 1995 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Various Cropping Systems Upon Organic Matter Total Nitrogen Cation Exchange Capacity Exchangeable Cations Conductivity and Reaction written by Mohammad Abdul Mannan and published by . This book was released on 1958 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Long term Cropping Systems on Organic Matter and Nitrogen Contents Aggregation Bulk Density and Water holding Capacity of Soil written by Pir Muhammad Azizi and published by . This book was released on 1972 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Accounting for Water Use and Productivity written by David Molden and published by IWMI. This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper presents a conceptual framework for water accounting and provides generic terminologies and procedures to describe the status of water resource use and consequences of water resources related actions. The framework applies to water resource use at three levels of analysis: a use level such as an irrigated field or household, a service level such as an irrigation or water supply system, and a water basin level that may include several uses. Water accounting terminology and performance indicators are developed and presented with examples at all the three levels. Concepts and terminologies presented are developed to be supportive in a number of activities including: identification of opportunities for water savings and increasing water productivity; developing a better understanding of present patterns of water use and impacts of interventions; improving communication among professionals and communication to non-water professionals; and improving the rationale for allocation of water among uses. It is expected that with further application, these water accounting concepts will evolve into a robust, supporting methodology for water basin analysis.
Download or read book Intensive Cropping written by Sohan S Prihar and published by CRC Press. This book was released on 2000-01-25 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore new concepts for maximizing crop yields! Intensive Cropping: Efficient Use of Water, Nutrients, and Tillage is a compilation of current information on the interdependence of and synergies among water, nutrients, and energy in regard to increasing crop performance. This book explains the need for intensive cropping and explores the technologies and practices necessary for proper management of water, nutrients, and energy. With Intensive Cropping you will learn how to improve the quantity of the world's most important crops using methods that will minimize harm to the environment. This essential guide is a state-of-the-art account of the concepts and practices concerning the integrated use of water, nutrients, and energy in intensive cropping. Intensive Cropping combines basic and applied aspects of soil-water, nutrients, and energy management to help you optimize your crop yields and maximize the efficiency of intensively farmed regions. In Intensive Cropping, you will explore the need for extreme farming and related concerns and concepts, including: reducing runoff, deep seepage, and evaporation losses supplementing irrigation with surface and ground water understanding the process of water uptake and its effects on root dynamics and water use reducing leaching, erosion, and gasseus losses in your fields using combinations of organic manures, crop residues, chemical fertilizers, and biofertilizers for soil maintenance implementing conventional and emerging tillage systems, such as conservation tillage for improving soil quality examining case studies of contrasting edaphic requirements of rice-wheat systems Intensive Cropping brings you up-to-date on recent advances in the field, supported by relevant experimental observations on environmentally safe and effective ways to increase crop performance. By examining this new research on increasing crop production, you will be able to successfully increase crop yields in various climates and support the growing global demand for such resources.
Download or read book Impact of Management and Texture on Soil Organic Matter Fractions written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing concerns about elevated levels of atmospheric CO2 and associated climate change have increased interest in soil C. While general increases in the adoption of conservation management practices may result in C sequestration, efficient utilization of soil as a C sink will require identification of soils with high potential for sequestration and improved methods of monitoring soil C. The objectives of this research were to: 1) evaluate the historical roots, experimental validation and subsequent impact of the C saturation relationships proposed by Jan Hassink, 2) evaluate the effects of management and texture on aggregation and C fractions using soil from two long term experiments, 3) develop new methods of structural disruption and physical fractionation that address shortcomings in existing methods, 4) evaluate the impact of antecedent C on C and aggregate dynamics and 5) evaluate the simplified MnoxC method proposed by Weil et al. (2003). Collectively, the literature we reviewed did not support broad application of simple C saturation relationships such as those proposed by Hassink but did support selective use of fine mineral content as an indicator of C storage capacity. Results from two incubation experiments demonstrated the modulating effect of antecedent C on soil C and aggregate dynamics following structural disruption and residue addition. Positive effects of residue and structural disruption on aggregation were greatest in soil with low antecedent C. Residue decomposed more rapidly in soil with high antecedent C but had a greater priming effect in soil with low antecedent C. Addition of a 15N labeled nitrate source revealed that immobilization of nitrate-N within microaggregates is a minor process irrespective of structural disruption and antecedent C. Carbon contained in microaggregates within stable macroaggregates from an organic transition experiment was sensitive to C input regime but unrelated to fine mineral content. Strong tillage system effe.
Download or read book The Effects of Different Intensities of Cropping on Some Physical Properties of Maury Silt Loam written by A. L. Zachary and published by . This book was released on 1954 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Cropping Systems on Aggregate Stability Organic Matter Content and Moisture Retention in Soils written by Joe Henton Jones and published by . This book was released on 1960 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cropping Practices on Yield Soil Organic Matter and Erosion in the Pacific Northwest Wheat Region written by Glenn Maurice Horner and published by . This book was released on 1960 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Cover Crops Profitably 3rd Ed written by Andy Clark and published by DIANE Publishing. This book was released on 2008-07 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cover crops slow erosion, improve soil, smother weeds, enhance nutrient and moisture availability, help control many pests and bring a host of other benefits to your farm. At the same time, they can reduce costs, increase profits and even create new sources of income. You¿ll reap dividends on your cover crop investments for years, since their benefits accumulate over the long term. This book will help you find which ones are right for you. Captures farmer and other research results from the past ten years. The authors verified the info. from the 2nd ed., added new results and updated farmer profiles and research data, and added 2 chap. Includes maps and charts, detailed narratives about individual cover crop species, and chap. about aspects of cover cropping.
Download or read book Crop Rotation Effects on Soil Aggregation and Organic Matter of Wheeling Loam Soils written by Indra Deva Sahay and published by . This book was released on 1961 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Various Cropping Systems Upon the Stability of Aggregates written by Angel H. Quintero and published by . This book was released on 1951 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Soil Aggregate Stability written by Edgar Allan C. Po and published by . This book was released on 2007 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Cropping Systems on the Organic Matter Content and on Certain Physical Properties of Miller Clay written by Jim Frank Mills and published by . This book was released on 1953 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Tillage Systems on Soil Organic Matter Stocks and C and N Fluxes in Cereal Cropping Systems on a Silt Loam Soil in Northern France written by Katrien Oorts and published by . This book was released on 2006 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cropping Practices on Yield Soil Organic Matter and Erosion in the Pacific Northwest Wheat Region written by Washington Agricultural Experiment Station and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
