Author: James A. Silva
Publisher: College of Tropical Agricultural
Published: 2014-05-30
Total Pages: 158
ISBN-13: 9781929325085
DOWNLOAD EBOOK →Today's approach to crop production considers not only the effects of fertilizer applications on crop yield and quality but also includes awareness of the potential of fertilizer nutrients to adversely affect the environment. Managing crop nutrients deliberately and carefully takes on special significance in Hawaii, where imported nutrient inputs are costly and the environment--particularly the underground aquifer and coastal waters--is vulnerable to pollution. This book contains a distillation of decades of CTAHR research on soils, fertilizers, and crop nutrient needs, written for the lay reader and intended to provide a solid base of knowledge for the serious agriculturist. While the text makes reference to Hawaii's crops and soil conditions, its basic information is transferrable to similar tropical and subtropical locations throughout the world.
Author: Peter Gruhn, Francesco Goletti, and Montague Yudelman
Publisher: Intl Food Policy Res Inst
Published: 2000
Total Pages: 38
ISBN-13: 0896296377
DOWNLOAD EBOOK →Author: Chalmer Kirk McClelland
Publisher:
Published: 1912
Total Pages: 506
ISBN-13:
DOWNLOAD EBOOK →Author: Timothy K. Hartz
Publisher: UCANR Publications
Published: 2020-07-14
Total Pages: 112
ISBN-13: 1627110704
DOWNLOAD EBOOK →With growers now facing increasingly stringent regulations designed to minimize nutrient losses to the environment, this guide outlines a fresh take on fertilization best practices for the industry. Nutrient management is critical to successful vegetable production. Given the high value and exacting market standards for size, appearance, and postharvest quality for vegetable crops, fertilizer management practices have focused on optimizing production across a wide range of field conditions. While effective in producing good crops, these practices are not necessarily reflective of input costs or environmental protection. Drawing on 25 years of industry experience, the author outlines the principles of nutrient management that are broadly applicable across crops and production regions. Growers, PCAs, and fertilizer industry professionals will find a practical understanding of crop nutrient requirements, soil nutrient availability, the value and limitations of soil and plant nutrient monitoring, and environmental protection in these pages.
Author: Pedro A. Sanchez
Publisher: Cambridge University Press
Published: 2019-01-10
Total Pages: 685
ISBN-13: 1107176050
DOWNLOAD EBOOK →Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Author: John Havlin
Publisher:
Published: 2013
Total Pages: 0
ISBN-13: 9780135033739
DOWNLOAD EBOOK →For courses in Soil Fertility, Nutrient Management, and Plant Nutrition in Agriculture. Soil Fertility and Fertilizers: An Introduction to Nutrient Management, Eighth Edition, provides a thorough understanding of the biological, chemical, and physical properties affecting soil fertility and plant nutrition. Covering all aspects of nutrient management for profitable crop production, the text pays particular attention to minimizing the environmental impact of soil and fertilizer management. The eighth edition of this proven text has been substantially revised to reflect rapidly advancing knowledge and technologies in both plant nutrition and nutrient management.
Author: Khan Towhid Osman
Publisher: Springer Science & Business Media
Published: 2012-12-04
Total Pages: 286
ISBN-13: 9400756631
DOWNLOAD EBOOK →Aimed at taking the mystery out of soil science, Soils: Principles, Properties and Management is a text for undergraduate/graduate students who study soil as a natural resource. Written in a reader-friendly style, with a host of examples, figures and tables, the book leads the reader from the basics of soil science through to complex situations, covering such topics as: the origin, development and classification of soil physical, chemical and biological properties of soil water and nutrient management management of problem soils, wetland soils and forest soils soil degradation Further, the ecological and agrological functions of soil are emphasized in the context of food security, biodiversity and climate change. The interactions between the environment and soil management are highlighted. Soil is viewed as an ecosystem itself and as a part of larger terrestrial ecosystems.
Author: Roma Doshi
Publisher:
Published: 2016
Total Pages: 0
ISBN-13: 9781681170954
DOWNLOAD EBOOK →Soil fertility refers to the ability of a soil to supply plant nutrients. Bioavailable phosphorus is the element in soil that is most often lacking. Nitrogen and potassium are also needed in substantial amounts. For this reason these three elements are always identified on a commercial fertilizer analysis. For example a 10-10-15 fertilizer has 10 percent nitrogen. Inorganic fertilizers are generally less expensive and have higher concentrations of nutrients than organic fertilizers. Also, since nitrogen, phosphorus and potassium generally must be in the inorganic forms to be taken up by plants, inorganic fertilizers are generally immediately bioavailable to plants without modification. However, some have criticized the use of inorganic fertilizers, claiming that the water-soluble nitrogen doesn't provide for the long-term needs of the plant and creates water pollution.
Author: Sharanappa
Publisher: CRC Press
Published: 2023-01-13
Total Pages: 166
ISBN-13: 1000833372
DOWNLOAD EBOOK →Understanding of the dynamics of plant nutrients in the soil provides scientific basis for efficient nutrient management. Soil organic matter not only provides the nutrients required by the crop but also improve the biological and physical properties of the soil. This book collects and discusses information on production and management of organic manures, biofertilizers, integrated nutrient management in cropping systems and nutrient management in problematic soils. Print and electronic editions not for sale in South Asia (India, Sri Lanka, Nepal, Bangladesh, Pakistan, Afghanistan and Bhutan).