Efficient Nutrient Management in California Vegetable Production


Book Description

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.




Nutrient Control


Book Description




Nutrient Control Actions for Improving Water Quality in the Mississippi River Basin and Northern Gulf of Mexico


Book Description

A large area of coastal waters in the northern Gulf of Mexico experiences seasonal conditions of low levels of dissolved oxygen, a condition known as hypoxia. Excess discharge of nutrients into the Gulf of Mexico from the Mississippi and Atchafalaya rivers causes nutrient overenrichment in the gulf's coastal waters and stimulates the growth of large algae blooms. When these algae die, the process of decomposition depletes dissolved oxygen from the water column and creates hypoxic conditions. In considering how to implement provisions of the Clean Water Act to strengthen nutrient reduction objectives across the Mississippi River basin, the U.S. Environmental Protection Agency (EPA) requested advice from the National Research Council. This book represents the results of the committee's investigations and deliberations, and recommends that the EPA and U.S. Department of Agriculture should jointly establish a Nutrient Control Implementation Initiative to learn more about the effectiveness of actions meant to improve water quality throughout the Mississippi River basin and into the northern Gulf of Mexico. Other recommendations include how to move forward on the larger process of allocating nutrient loading caps-which entails delegating responsibilities for reducing nutrient pollutants such as nitrogen and phosphorus-across the basin.







Lake Erie Nutrient Control


Book Description




Water, Root Media, and Nutrient Management for Greenhouse Crops


Book Description

This user-friendly, practical guide was written for large and small greenhouse producers of containerized crops throughout the United States and all climates of North America. Inside you’ll find a thorough overview of plant nutrition and water quality. Originally associated with floriculture crops and “out-of-season” vegetable production, greenhouse production has experienced a recent sea change: new marketing trends, organic production, improved and more efficient production technologies, and the introduction of new laws and regulations related to environmental sustainability and food safety. To be successful, professional growers need to be equipped with a comprehensive understanding of greenhouse management today. Written by industry-based professionals and academics, its seventeen chapters demonstrate how water, root media, and fertilizer are integrated to optimize plant health, production efficiency, and the sustainability of resources and the environment.




Nutrient Management in Agricultural Watersheds


Book Description

Nutrient enrichment of water resources by inputs of nitrogen and phosphorus, which can lead to eutrophication is still a water quality problem in agriculturally dominated watersheds around the world. Internationally, wetlands both constructed and natural are increasingly being used to help reduce both point and non-point source nutrient and contaminant loss from agricultural practices. This publication contains papers presented at the international symposium on "Nutrient Management in Agricultural Watersheds: A Wetlands Solution," which was held during May, 2004 in Wexford, Ireland. The symposium was the result of an international collaboration between the Teagasc Research Centre, Johnstown Castle, Ireland, National Parks and Wildlife, Department of Environment, Heritage and Local Government, Ireland and the Soil and Water Science Department at the University of Florida, Gainesville, USA. These proceedings cover aspects of water quality within agricultural watersheds; management practices to mitigate contaminant and nutrient loss from agriculture; wetland biogeochemistry; wetland functions and values within agricultural dominated landscapes; case studies of wetlands used to retain nutrient and contaminant loss from agriculture; and finally some management and policy issues concerning wetlands are presented. This book provides a good interdisciplinary synthesis of international experiences both in Europe and the USA on the use of wetlands within agricultural watersheds.




Integrated Nutrient Management Practices for Soil Health - Need of Hour


Book Description

Intensive agriculture system, while increasing food grain production, has caused second-generation problems concerning nutrient imbalance. Some, other problems like greater mining of nutrients from the soil, soil fertility depletion, emerging multiple nutrient deficiencies, secondary and micronutrients, fall of the water table and deteriorate water quality, decline organic carbon and an overall deterioration in soil health. In INM, crop yields can be increased while minimizing nutrient losses to the environment by managing nutrient supply in the root zone within a reasonable range, Soil physico-chemical and biological properties are closely related with SOC and OM, thus, any soil management practices that enhance soil organic matter, microbial biomass and soil health, for this, combined use of organic and inorganic nutrient sources might be the right proposition for these soils, primarily for the improvement of soil health.. The research main motive was to find out the best-integrated practice which can be used to find out the best INM practice that can help to overcome this problem.




Improvement of Quality in Fruits and Vegetables Through Hydroponic Nutrient Management


Book Description

The book Potassium - Improvement of Quality in Fruits and Vegetables Through Hydroponic Nutrient Management provides useful information regarding potassium nutrition management in hydroponic cultivation, which will help in producing quality horticultural crops. The first few chapters describe the role of potassium nutrition in plants, its interaction with other nutrients, its source fertilizers, the role in postharvest produce qualities, and human nutrition. Potassium fertilizer management, its metabolism in plants, and cultivation techniques of fruits and leafy vegetables are also included in the middle section. The final chapter illustrates the software development for the calculation of hydroponic nutrients including potassium for easy management of cultural solution. As a whole, this book covers several major aspects on the topic for making it a complete and useful resource.




Integrated Nutrient Management (INM) in a Sustainable Rice-Wheat Cropping System


Book Description

Agriculture is the main occupation in India and about 75% of its population depends directly or indirectly on agriculture for their livelihood. It is the dominant sector that contributes 18% of the gross domestic product. Thus, agriculture is the foundation of the Indian economy. The maximum share of Indian exports is also from the agriculture sector. As the population of the country is increasing trem- dously, approximately at the rate of 19 million every year over the existing popu- tion of more than 1 billion (approximately 1. 18 billion), the food grain production must necessarily be increased. This can be done by increasing crop production to match the population growth rate of 2. 2% per annum, which is expected to stabilize at 1. 53 billion around 2050. There is no doubt that the Green Revolution in India during the late 1960s brought self-sufficiency in food grain production, mainly through the increase in rice and wheat crop yields – the two main crops of the country which play an important role from food security point of view. However, the excessive use of fertilizers and pesticides, and the neglect of organic manures for these crops, has resulted in the deterioration of physical, chemical and biological health of the ri- and wheat-growing soils. Owing to the deterioration of the health of these soils, the productivity of the rice–wheat cropping system has now either got reduced or in some places has become constant for the last decade.