Download or read book Improving the Efficiency of Soil Nitrogen and Fertilizer Nitrogen for Different Tillage straw Systems written by M. Nyborg and published by . This book was released on 1989 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Increasing Efficiency of Soil and Fall applied Fertilizer Nitrogen Under Various Tillage Systems written by Sukhdev Singh Malhi and published by . This book was released on 1986 with total page 70 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 Efficient Nitrogen Fertilizer Management to Improve Crop Production written by Li Wang and published by Frontiers Media SA. This book was released on 2024-05-22 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: The improvement in global crop production over the past several decades has been associated with increased use of nitrogen (N) fertilizer. However, on average, less than 50% of the nitrogen added to croplands globally is harvested as crop product. Inefficient use of N fertilizer by crops will result in substantial agricultural nitrogen losses, posing threats to human and ecosystem health. Crop production must increase dramatically to meet the growing demand for food and biofuels projected for 2050. To boost crop yield with lowered environmental cost, the use of high-potential crop cultivars and efficient nitrogen fertilizer management are required. Recent advances in N management practices, such as enhanced-efficiency fertilizer use, improved manure management and machine deep placement of fertilizer have opened up new strategies to achieve improved crop production with N use reduction. A better understanding of the key crop traits and regulatory processes in response to N fertilizer managements will facilitate the increase in crop yield, N use efficiency while minimizing impacts on the environment.
Download or read book Advances in Plant Soil Nitrogen Management Strategies written by Sumera Anwar and published by Frontiers Media SA. This book was released on 2024-02-19 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of Available Phosphorus in Soils by Extraction with Sodium Bicarbonate written by Sterling Robertson Olsen and published by . This book was released on 1954 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Fertilizer and Chemical Efficiency Through high Precision Farming written by Robert D. Munson and published by . This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecological efficient and low carbon cereal legume intercropping systems written by Lingyang Feng and published by Frontiers Media SA. This book was released on 2023-09-28 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Enhancing the Efficiency of Nitrogen Utilization in Plants written by Sham S. Goyal and published by CRC Press. This book was released on 2006-08-22 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest advancements and innovations in regulating the nitrogen levels in your crops Enhancing the Efficiency of Nitrogen Utilization in Plants examines current research to present an overview of inorganic nitrogen uptake and metabolism in plant life and crop production. This comprehensive resource is divided into sections for quick and easy reference, focusing on physiology and adaptive mechanisms, molecular genetics, and applied aspects. The world’s leading experts in agronomy, crop science, and plant physiology analyze the most effective methods and management practices to ensure maximum plant growth and production. Enhancing the Efficiency of Nitrogen Utilization in Plants develops links between basic and applied research and practical crop production. This unique book addresses a wide range of topics that relate to nitrogen use efficiency, and to plant and crop responses to applications of nitrogen via fertilizers, including nitrogen acquisition and reduction; crop rotation; molecular approaches, genetics, and markers; balanced fertilization and controlled-release fertilizers; nitrogen decline, supply, and demand; crop breeding; radiation use; nutrient deficiency and toxicity; nitrate induction and signaling; nitrogen transport; and nitrogen use at the leaf and canopy level . Enhancing the Efficiency of Nitrogen Utilization in Plants examines: plant responses to changes in the supply of the two inorganic nitrogen sources of nitrate and ammonium root system control mechanisms of nitrogen uptake nitrate uptake and reduction in higher and lower plants how nitrogen affects biomass production in a canopy nitrogen’s effects on radiation interception and radiation use efficiency senescence and photosynthesis the regulation of nitrogen and carbon metabolisms by sugars and nitrogen metabolites integrated nitrogen fertilization the use of legumes for soil improvement root system control mechanisms fertility and crop nutrient demand chemical and biological processes that influence nitrogen transformation or loss the use of simulation models to measure water and nutrient transport in soils and much more Enhancing the Efficiency of Nitrogen Utilization in Plants is an invaluable classroom aid for academics working in plant physiology and agronomy, and an essential professional resource for researchers working in plant and crop production.
Download or read book Improving crop nutritional security for sustainable agriculture in the era of climate change written by M. Iqbal R. Khan and published by Frontiers Media SA. This book was released on 2023-10-25 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Nitrogen fixing Systems in Soil Improvement and Management written by Y. A. Hamdi and published by Food & Agriculture Org.. This book was released on 1982 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biological nitrogen-fixation. Rhizoia-legume symbiosis. Ble-green alge. Free-livin nitrogen-fixing bacteria. Azolla. Nodulated non-leguminous plants. Some costs of biofertilizers.
Download or read book Nutrient Use Efficiency from Basics to Advances written by Amitava Rakshit and published by Springer. This book was released on 2014-12-26 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses in detail multifaceted approaches to boosting nutrient use efficiency (NUE) that are modified by plant interactions with environmental variables and combine physiological, microbial, biotechnological and agronomic aspects. Conveying an in-depth understanding of the topic will spark the development of new cultivars and strains to induce NUE, coupled with best management practices that will immensely benefit agricultural systems, safeguarding their soil, water, and air quality. Written by recognized experts in the field, the book is intended to provide students, scientists and policymakers with essential insights into holistic approaches to NUE, as well as an overview of some successful case studies. In the present understanding of agriculture, NUE represents a question of process optimization in response to the increasing fragility of our natural resources base and threats to food grain security across the globe. Further improving nutrient use efficiency is a prerequisite to reducing production costs, expanding crop acreage into non-competitive marginal lands with low nutrient resources, and preventing environmental contamination. The nutrients most commonly limiting plant growth are N, P, K, S and micronutrients like Fe, Zn, B and Mo. NUE depends on the ability to efficiently take up the nutrient from the soil, but also on transport, storage, mobilization, usage within the plant and the environment. A number of approaches can help us to understand NUE as a whole. One involves adopting best crop management practices that take into account root-induced rhizosphere processes, which play a pivotal role in controlling nutrient dynamics in the soil-plant-atmosphere continuum. New technologies, from basic tools like leaf color charts to sophisticated sensor-based systems and laser land leveling, can reduce the dependency on laboratory assistance and manual labor. Another approach concerns the development of crop plants through genetic manipulations that allow them to take up and assimilate nutrients more efficiently, as well as identifying processes of plant responses to nutrient deficiency stress and exploring natural genetic variation. Though only recently introduced, the ability of microbial inoculants to induce NUE is gaining in importance, as the loss, immobilization, release and availability of nutrients are mediated by soil microbial processes.
Download or read book Rice is Life Scientific Perspectives for the 21st Century written by and published by Int. Rice Res. Inst.. This book was released on 2005 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crop Residue Management Systems written by W. R. Oschwald and published by ACSESS. This book was released on 2020-01-22 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: The management of croplands has a large impact on the quantity and quality of food and fiber production and on air and water quality, all of which influence the quality of our environment. Management of the nonharvested plant tissues, such as leaves, stems, branches, and roots that constitute the residues from the production of food and fiber, is one of the farm practices that affects crop production via nutrient availability and cycling. Management of these residues also provides opportunities for control of dust in the air and sediments and nutrients in waters through control of soil erosion caused by wind and water. Thus, the task ahead for the management of croplands for improvements in the overall well-being of people involves the application of known effective crop residue management systems to maintain crop production and to reduce wind and water erosion. There is need, as well, for development of more effective management systems through laboratory and field research.
Download or read book Modification of Nitrogen Fertilisers Using Inhibitors written by Catherine J. Watson and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: When fertilizer nitrogen (N) is applied to soil it is not used efficiently and plant N uptake is seldom greater than 50% of the N applied. One of the reasons for poor N use efficiency is high losses from the plant-soil system by ammonia (NH3) volatilization, during nitrification and by leaching, erosion, surface runoff and denitrification. The loss of N represents an economic loss to farmers and has environmental implications for water quality and greenhouse gas emissions. Stabilised N fertilizers (urease and nitrification inhibitors) have received considerable attention recently due to their potential to lower N losses to the environment and increase crop yields. However, the efficacy of urease and nitrification inhibitors can be quite variable depending on the crop, soil properties, climatic and management factors. Many compounds have been evaluated as urease or nitrification inhibitors however, few meet the requirements of being effective at low concentrations, non toxic, stable, inexpensive and compatible with standard N fertilizers. Urease inhibitors delay the rate of urea hydrolysis to ammonium-N (NH4+-N) and hence prevent localised zones of high pH and NH4+-N concentrations in soil, which are conducive to NH3 volatilization. They are expected to be most beneficial on soils where NH3 volatilization from urea fertilizer is high. The urease inhibitor N-(n-butyl) thiophosphoric triamide (trade name Agrotain(r)) is the most successful commercially, where it has been shown to lower NH3 volatilization from surface-applied urea and increase yields on a wide range of crops. Agrotain is now licensed or sold in over 70 countries worldwide, in both agricultural and amenity markets.
Download or read book Soil Nitrogen Uses and Environmental Impacts written by Rattan Lal and published by CRC Press. This book was released on 2018-03-15 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen (N) is potentially one of the most complex elements on the Earth. It is necessary for all biological activity, but creates negative impacts on water and air quality. There is a balancing act between deficiency and surplus and the forms of N available further complicate our understanding of the dynamics. Biological fixation provides some plants with N supply while others are totally dependent upon N being available in the soil profile for the roots to extract. Nevertheless, the demand for N will increase because the human population with its increasing growth requires more protein and thus more N. Understanding the global N cycle is imperative to meeting current and future nitrogen demands while decreasing environmental impacts. This book discusses availability, production, and recycling of N in air, water, plants, and soils. It features information on N impacts to soil and water quality, management of N in agroecosystems, and techniques to maximize the use efficiency while minimizing the risks of leakage of reactive N into the environment. This volume in the Advances in Soil Science series is specifically devoted to availability, production, and recycling of N with impact on climate change and water quality, and management of N in agroecosystems in the context of maximizing the use efficiency and minimizing the risks of leakage of reactive N (NO-3, N¬2O) into the environment.
Download or read book Advances In Nutrient Dynamics In Soil Plant System For Improving Nutrient Use Efficiency written by R. Elanchezhian and published by New India Publishing Agency. This book was released on 2017-05-18 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises 31 chapters on advances in soil-plant systems for improving nutrient use efficiency with four major themes viz. 1. Introduction and Fundamentals of Soil Plant Atmosphere Continuum and nutrient use efficiency 2. Soil physical, chemical, biological and agronomic management for improving NUE 3. Plant physiological, genetic & molecular biological basis for improving nutrient uptake & use efficiency 4. Climate change aspects related to soil and plant systems for improving NUE. Besides the book also include few chapters on analytical techniques and instrumentation for the study of nutrient use efficiency with respect to physico-chemical and biological parameters.
