Reducing External Production Inputs in Corn/forage Legume Cropping Systems PDF Download
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Author: Margaret Anne Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 348
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Author: Margaret Anne Smith
Publisher:
ISBN:
Category :
Languages : en
Pages : 348
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Author: James Keats Stute
Publisher:
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Category :
Languages : en
Pages : 200
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Category : Dissertations, Academic
Languages : en
Pages : 742
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Author: Matt Liebman
Publisher: Cambridge University Press
ISBN: 1139427245
Category : Science
Languages : en
Pages : 546
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This book presents principles and practices for ecologically based weed management in a wide range of temperate and tropical farming systems. Special attention is given to the evolutionary challenges that weeds pose and the roles that farmers can play in the development of new weed-management strategies.
Author: Jeffrey A. Coulter
Publisher: MDPI
ISBN: 3039289071
Category : Science
Languages : en
Pages : 326
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Global crop production must substantially increase to meet the needs of a rapidly growing population. This is constrained by the availability of nutrients, water, and land. There is also an urgent need to reduce the negative environmental impacts of crop production. Collectively, these issues represent one of the greatest challenges of the twenty-first century. Sustainable cropping systems based on ecological principles are the core of integrated approaches to solve this critical challenge. This special issue provides an international basis for revealing the underlying mechanisms of sustainable cropping systems to drive agronomic innovations. It includes review and original research articles that report novel scientific findings on improvement in cropping systems related to crop yields and their resistance to biotic and abiotic stressors, resource use efficiency, environmental impact, sustainability, and ecosystem services.
Author: Kenneth J. Moore
Publisher: John Wiley & Sons
ISBN: 1119436621
Category : Technology & Engineering
Languages : en
Pages : 963
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Book Description
Forages: The Science of Grassland Agriculture, 7th Edition, Volume II will extensively evaluate the current knowledge and information on forage agriculture. Chapters written by leading researchers and authorities in grassland agriculture are aggregated under section themes, each one representing a major topic within grassland science and agriculture. This 7th edition will include two new additional chapters covering all aspects of forage physiology in three separate chapters, instead of one in previous editions. Chapters will be updated throughout to include new information that has developed since the last edition. This new edition of the classic reference serves as a comprehensive supplement to An Introduction to Grassland Agriculture, Volume I.
Author: Jules N. Pretty
Publisher: Routledge
ISBN: 1136529276
Category : Nature
Languages : en
Pages : 292
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Book Description
Continued population growth, rapidly changing consumption patterns and the impacts of climate change and environmental degradation are driving limited resources of food, energy, water and materials towards critical thresholds worldwide. These pressures are likely to be substantial across Africa, where countries will have to find innovative ways to boost crop and livestock production to avoid becoming more reliant on imports and food aid. Sustainable agricultural intensification - producing more output from the same area of land while reducing the negative environmental impacts - represents a solution for millions of African farmers. This volume presents the lessons learned from 40 sustainable agricultural intensification programmes in 20 countries across Africa, commissioned as part of the UK Government's Foresight project. Through detailed case studies, the authors of each chapter examine how to develop productive and sustainable agricultural systems and how to scale up these systems to reach many more millions of people in the future. Themes covered include crop improvements, agroforestry and soil conservation, conservation agriculture, integrated pest management, horticulture, livestock and fodder crops, aquaculture, and novel policies and partnerships.
Author:
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Category : Cropping systems
Languages : en
Pages : 36
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Category :
Languages : en
Pages :
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Languages : en
Pages :
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Inputs such as machinery, fuel, pesticides and fertilizers contribute to energy expended in cropping systems. Reducing non-renewable energy use (EU) and increasing energy use efficiency (EUE) can make cropping systems more sustainable. Nitrogen benefits of legumes to succeeding non-leguminous crops are well documented. This study examined the effect of green manure and perennial forage legumes on energy efficiency of crop production for four western Canadian crop rotation studies: Lethbridge, AB; Swift Current, SK; Indian Head, SK; Glenlea, MB. Relative to continuous grain rotations, rotations containing 50% perennial forage legumes decreased EU by up to 85% and increased EUE by up to 438%. Relative to cereal, pulse and oilseed rotations, they reduced EU by up to 28% and increased EUE by up to 294%. Rotations containing green manure legumes decreased EU by up to 65%, and increased EUE by up to 196%. The primary contribution of legumes to lower energy use was nitrogen addition to the soil. Depending on site and rotation, economic performance of legume rotations varied compared to annual grain rotations. The rotational benefits of relay intercropped and double cropped legumes in cont nuous grain systems in Manitoba were also investigated. When examining relay intercropped alfalfa and red clover and double cropped chickling fetch and lentil, it was found that considerable nitrogen benefits were provided to a succeeding oat crop by all legumes at Winnipeg, and by some legumes at Carmen. Reduced legume growth at Carmen, due to drought conditions, resulted in few yield benefits from the relay intercropped and double cropped legumes. Including relay intercropped and double cropped legumes in continuous grain rotations reduced energy use by up to 39%, and increased energy use efficiency by up to 28%. Increasing the frequency of legumes in cropping systems shows promise to enhance agricultural sustainability.
