dungan robert (24 resultados)

Paperback. Condición: Very Good. Shipped within 24 hours from our UK warehouse. Clean, undamaged book with no damage to pages and minimal wear to the cover. Spine still tight, in very good condition. Remember if you are not happy, you are covered by our 100% money back guarantee.

Condición: New.

Condición: New.

Paperback. Condición: New. Print on Demand. This book delves into the multifaceted nature of corn performance tests conducted in Illinois from 1936 to 1939. It provides a comprehensive examination of the standards and methodologies used in these tests, highlighting the key parameters evaluated, such as lodging resistance and sound corn yield. The data gathered from these tests sheds light on the genetic advancements made in hybrid corn during this period and contributes to our understanding of the factors influencing corn performance in various environmental conditions. The findings presented in this book serve as a valuable resource for researchers, farmers, and anyone interested in the history and science of corn improvement. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condición: New. Print on Demand. This book offers a comprehensive overview of the ways in which hybrids have been and continue to be developed and tested. The author explains the methodologies and research techniques that are employed in hybrid corn production and performance assessment. The book discusses important aspects of hybrid corn performance, and presents the results of performance tests conducted over a five-year period in Illinois. The book also delves into the history of hybrid corn and its rise to prominence. After reading this book, you will gain a deep understanding of the science behind hybrid corn, and appreciate the crucial role it has played in agricultural advancements. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condición: New. This book features four peer-reviewed reviews on regenerative techniques to improve soil health.The first chapter discusses some common issues regarding the use of bio-based fertilisers, such as the concentration of nutrients leading to losses of reactive nitrogen (N) and phosphorus into the environment.The second chapter provides a critical evaluation of the potential of compost to improve soil health, as well as its effect on soil nutrient cycling, soil hydraulic properties, crop productivity, soil biodiversity and environmental quality. Two case studies on the benefits and risks of using compost in perennial and annual crops are also included.The third chapter reviews the benefits of service crops, including cover and catch crops, in both intensive cropping systems and low input systems. The chapter discusses an array of studies from temperate Europe to illustrate these benefits, including the use of service crops for reducing N leaching losses.The final chapter addresses how crop rotations affect nitrogen flows in organic farming systems and how these rotations can be utilised to optimise the nitrogen cycle and improve nitrogen use efficiency. The chapter utilises 30 years' worth of data collected from over 90 different temperate field studies published between 1990 and 2020.

Paperback. Condición: New. This book features five peer-reviewed reviews on biofertiliser use in agriculture.The first chapter examines the role of biofertilisers and consortia of microorganisms to improve the effectiveness of organic fertilisation, before moving on to consider the use of animal excrement, including manures, slurry and guano.The second chapter presents the key issues in the optimum use of treated wastes in crop nutrition. The chapter also discusses technical processes such as precipitation of salts, incineration and post-treatment of ashes, as well as production of carbonaceous materials.The third chapter discusses some common issues regarding the use of bio-based fertilisers, such as the concentration of nutrients leading to losses of reactive nitrogen and phosphorus into the environment.The fourth chapter addresses the key issues of arbuscular mycorrhizal fungi (AMF) and soil health, specifically focussing on improved soil structure and stability, soil contamination, carbon sequestration and nutrient retention.The final chapter provides an overview on the use of plant growth-promoting bacteria/rhizobacteria (PGPB/PGPR) and its consequent effects on plant and soil health. The chapter also explores interactions between PGPB/PGPR and other components of the rhizosphere, such as AMF.

Condición: New. In.

Condición: New. In.

hardcover. Condición: Good. HARDCOVER Good - Bumped and creased book with tears to the extremities, but not affecting the text block, may have remainder mark or previous owner's name - GOOD Standard-sized.

Condición: New.

Paperback. Condición: Brand New. 144 pages. 0.90x6.00x9.00 inches. In Stock.

Condición: New.

Condición: New.

Hardback. Condición: New. New copy - Usually dispatched within 4 working days.

Condición: New. 2023. hardcover. . . . . .

Condición: New. 2023. hardcover. . . . . . Books ship from the US and Ireland.

Paperback. Condición: New. This book features four peer-reviewed reviews on regenerative techniques to improve soil health.The first chapter discusses some common issues regarding the use of bio-based fertilisers, such as the concentration of nutrients leading to losses of reactive nitrogen (N) and phosphorus into the environment.The second chapter provides a critical evaluation of the potential of compost to improve soil health, as well as its effect on soil nutrient cycling, soil hydraulic properties, crop productivity, soil biodiversity and environmental quality. Two case studies on the benefits and risks of using compost in perennial and annual crops are also included.The third chapter reviews the benefits of service crops, including cover and catch crops, in both intensive cropping systems and low input systems. The chapter discusses an array of studies from temperate Europe to illustrate these benefits, including the use of service crops for reducing N leaching losses.The final chapter addresses how crop rotations affect nitrogen flows in organic farming systems and how these rotations can be utilised to optimise the nitrogen cycle and improve nitrogen use efficiency. The chapter utilises 30 years' worth of data collected from over 90 different temperate field studies published between 1990 and 2020.

Paperback. Condición: New. This book features five peer-reviewed reviews on biofertiliser use in agriculture.The first chapter examines the role of biofertilisers and consortia of microorganisms to improve the effectiveness of organic fertilisation, before moving on to consider the use of animal excrement, including manures, slurry and guano.The second chapter presents the key issues in the optimum use of treated wastes in crop nutrition. The chapter also discusses technical processes such as precipitation of salts, incineration and post-treatment of ashes, as well as production of carbonaceous materials.The third chapter discusses some common issues regarding the use of bio-based fertilisers, such as the concentration of nutrients leading to losses of reactive nitrogen and phosphorus into the environment.The fourth chapter addresses the key issues of arbuscular mycorrhizal fungi (AMF) and soil health, specifically focussing on improved soil structure and stability, soil contamination, carbon sequestration and nutrient retention.The final chapter provides an overview on the use of plant growth-promoting bacteria/rhizobacteria (PGPB/PGPR) and its consequent effects on plant and soil health. The chapter also explores interactions between PGPB/PGPR and other components of the rhizosphere, such as AMF.

Condición: Near Fine. January Cover Art by Catherine Steihm, May Cover Photo by Dungan, June Cover Art by Catherine Steihm, July Cover Art by Merlin Enabnit, August Cover Art by Merlin Enabnit, September Cover Art by Donald Mills, October Cover Art by Catherine Steihm, No Ilustrador. Vol. 8 - No. 1 Issue No. 8 Norman Vincent Peale on Survival, Vol 8 - No. 3 Issue No. 60 Saucer Over Italy, Vol 8 - No. 4 Issue No. 61 Have you Lived Before?, Vol 8 - No. 5 Issue No. 62, Vol. 8 - No. 6 Issue No. 63 How To Read The Crystal Ball, Vol. 8 - No. 5 Issue No. 64 How Your Mind Can Move Matter, Vol. 8 - No. 8 Issue No. 65, Vol. 8 - No. 9 Issue No. 66, Vol. 8 - No. 10 Issue No. 67 Mexico's Island of Death, Vol. 8 No. 11 Issue No. 68 True Psychic Adventure: Journey Into The Past, Vol. 8 No. 12 Issue No. 69. magazine, 130 pages, most fine, January fine condition, March fine, August fair tear on spine 1" inch, December very good creased top corner, binding very good, pages clean, All in plastic cover but August.

Condición: New. Print on Demand.

Condición: New. Print on Demand.

Condición: New. PRINT ON DEMAND.

Condición: New. PRINT ON DEMAND.