A Field Evaluation Of The Utility Of Several Methods Of Estimating Plant Available Soil Nitrogen For Maize
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A Field Evaluation Of The Utility Of Several Methods Of Estimating Plant Available Soil Nitrogen For Maize
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Author : Sipho Velaphi Nkambule
language : en
Publisher:
Release Date : 1993
A Field Evaluation Of The Utility Of Several Methods Of Estimating Plant Available Soil Nitrogen For Maize written by Sipho Velaphi Nkambule and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Agronomy News
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Author :
language : en
Publisher:
Release Date : 1993
Agronomy News written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Agriculture categories.
Sept.-Oct. issue includes list of theses and dissertations for U.S. and Canadian graduate degrees granted in crop science, soil science, and agronomic science during the previous academic year.
Seasonal Dynamics Of Nitrate Leaching And Active Soil Organic Nitrogen Under Maize And Wheat
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Author : Thomas William Bruulsema
language : en
Publisher: Ann Arbor, Mich. : University Microfilms International
Release Date : 1994
Seasonal Dynamics Of Nitrate Leaching And Active Soil Organic Nitrogen Under Maize And Wheat written by Thomas William Bruulsema and has been published by Ann Arbor, Mich. : University Microfilms International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Evaluation Of Tests For Available Soil Nitrogen And Effect Of Related Factors
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Author : Thomas Arthur Richard
language : en
Publisher:
Release Date : 1957
Evaluation Of Tests For Available Soil Nitrogen And Effect Of Related Factors written by Thomas Arthur Richard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with categories.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2008
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Dissertations, Academic categories.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1971
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Agriculture categories.
American Doctoral Dissertations
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Author :
language : en
Publisher:
Release Date : 1993
American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Dissertation abstracts categories.
Practical Applications Of Agricultural System Models To Optimize The Use Of Limited Water
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Author : Lajpat R. Ahuja
language : en
Publisher: John Wiley & Sons
Release Date : 2020-01-22
Practical Applications Of Agricultural System Models To Optimize The Use Of Limited Water written by Lajpat R. Ahuja and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-22 with Technology & Engineering categories.
Completely devoted to applicati on of models to opti mize the use of limited water and nutrients in various climates, this collecti on will inspire confi dence in the capacity of modeling to tackle the biggest threats to secure agriculture. To obtain the most producti on from available water while maintaining natural resources, we need whole system–based quanti tati ve knowledge and tools to help select appropriate crops and manage water and associated inputs on a site-specifi c basis under changing climate. Site-specifi c experimental results are available for limited locati ons, limited periods of ti me, and limited management opti ons. Well-tested process models of cropping systems can extend fi eld research results to long-term weather conditi ons, as well as other climates and soils, allowing us to explore new management opti ons. The case studies in this volume are promising examples of these kinds of soluti ons.
Soil And Fertilizers
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Author : Rattan Lal
language : en
Publisher: CRC Press
Release Date : 2020-05-06
Soil And Fertilizers written by Rattan Lal and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-06 with Nature categories.
Soil and Fertilizers: Managing the Environmental Footprint presents strategies to improve soil health by reducing the rate of fertilizer input while maintaining high agronomic yields. It is estimated that fertilizer use supported nearly half of global births in 2008. In a context of potential food insecurity exacerbated by population growth and climate change, the importance of fertilizers in sustaining the agronomic production is clear. However, excessive use of chemical fertilizers poses serious risks both to the environment and to human health. Highlighting a tenfold increase in global fertilizer consumption between 2002 and 2016, the book explains the effects on the quality of soil, water, air and biota from overuse of chemical fertilizers. Written by an interdisciplinary author team, this book presents methods for enhancing the efficiency of fertilizer use and outlines agricultural practices that can reduce the environmental footprint. Features: Includes a thorough literature review on the agronomic and environmental impact of fertilizer, from degradation of ecosystems to the eutrophication of drinking water Devotes specific chapters to enhancing the use efficiency and effectiveness of the fertilizers through improved formulations, time and mode of application, and the use of precision farming technology Reveals geographic variation in fertilizer consumption volume by presenting case studies for specific countries and regions, including India and Africa Discusses the pros and cons of organic vs. chemical fertilizers, innovative technologies including nuclear energy, and the U.N.’s Sustainable Development Goals Part of the Advances in Soil Sciences series, this solutions-focused volume will appeal to soil scientists, environmental scientists and agricultural engineers.
Biostimulants In Agriculture Ii Towards A Sustainable Future
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Author : Maurizio Ruzzi
language : en
Publisher: Frontiers Media SA
Release Date : 2024-06-11
Biostimulants In Agriculture Ii Towards A Sustainable Future written by Maurizio Ruzzi and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-06-11 with Science categories.
Modern agriculture needs to review and broaden its practices and business models, by integrating opportunities coming from different adjacent sectors and value chains, including the bio-based industry, in a fully circular economy strategy. Searching for new tools and technologies to increase crop productivity under optimal and sub-optimal conditions and to improve resources use efficiency is crucial to ensure food security while preserving soil quality, microbial biodiversity, and providing business opportunities for farmers. Biostimulants based on microorganisms or organic substances obtained from renewable materials represent a sustainable, efficient technology or complement to synthetic counterparts, to improve nutrient use efficiency and secure crop yield stability. Under the new European Union Regulation 2019/1009, plant biostimulants were defined based on four agricultural functional claims as follows: Plant biostimulants are products that stimulate plant nutrition processes independently of the product's nutrient content with the sole aim of improving one or more of the following characteristics of the plant and/or the plant rhizosphere: 1) nutrient use efficiency, 2) tolerance resistance to (a)biotic stress, 3) quality characteristics or 4) availability of confined nutrients in the soil or rhizosphere’. Many diverse natural substances and chemical derivatives of natural or synthetic compounds, as well as beneficial microorganisms, are cataloged as plant biostimulants including i) humic substances, ii) plant or animal-based protein hydrolysates, iii) macro and micro-algal extracts, iv) silicon, v) arbuscular mycorrhizal fungi (AMF) and vi) plant growth-promoting rhizobacteria (PGPR) belonging to the Azotobacter, Azospirillum and Rhizobium genera.