Soil Management - Fertilization, Compost, Nutrients

Soil Moisture Monitoring: Low-Cost Tools and Methods

Irrigators who monitor soil moisture levels in the field greatly increase their ability to conserve water and energy, optimize crop yields, and avoid soil erosion and water pollution. This publication explains how soils hold water and surveys some low-cost soil moisture monitoring tools and...
Mike Morris
ATTRA Publication

Fertilización Nitrogenada en Quinoa

El objetivo del estudio fue determinar la eficiencia de uso y requerimiento interno de nitrógeno en quinoa (Chenopodium quinoa Willd). El experimento se realizó en la Estación Experimental de la Universidad de Concepción, Campus Chillán 144 m.s.n.m. La siembra...
Marisol Berti
Rosemarie Wilckens
Felicitas Hevia
Humberto Serri
Iván Vidal
Carlos Méndez
Ciencia e Investigación Agraria

Soil Management: National Organic Program Regulations

The National Organic Program Rule, §205.203, Soil Fertility and Crop Nutrient Management Practice Standard, does not define specific land practices that producers must use. But it does identify general soil management and environmental protection objectives. From these objectives, producers...
Barbara Bellows
ATTRA

Soil fertility management

This Agrodok will provide information about appropriate crop husbandry practices and the use of organic and chemical fertilisers, and it will give some background information and definitions of terms that are often used in soil science. Finally, it will outline a procedure to assess the condition...
Laura van Schöll
Rienke Nieuwenhuis
Agromisa Foundation

Overview of Cover Crops and Green Manures

Cover crops could be considered the backbone of any annual cropping system that seeks to be sustainable. In this publication we summarize the principal uses and benefits of cover crops and green manures. Brief descriptions and examples are provided for: winter cover crops; summer green manures;...
Preston Sullivan
ATTRA

Fertilizer Management for Greenhouse Vegetables

Plants require 16 elements for normal growth and reproduction. The objective of a sound fertilizer management program is to supply these required nutrients in ample, but not excessive amounts for optimum crop production. This chapter will present general information on plant nutrition that will...
G. J. Hochmuth
University of Florida, IFAS Extension

Estándares nutrimentales para aguacatero ‘Hass’

La Sierra Purépecha en Michoacán, México, es considerada la región productora de aguacate más importante del mundo, donde existen factores restrictivos de la producción que no han sido apropiadamente identificados y que requieren ser investigados para...
R. Maldonado-Torres
M. E. Álvarez-Sánchez
G. Almaguer-Vargas
A. F. Barrientos-Priego
R. García-Mateos
Revista Chapingo Serie Horticultura

Arsenic in Poultry Litter: Organic Regulations

Most of the arsenic used as an antibiotic in commercial broiler production ends up in the litter. Using this litter as a soil amendment is not prohibited by the National Organic Program, but 7CFR §205.203(c) of the Rule requires that “the producer must manage plant and animal materials to maintain...
Barbara C. Bellows
ATTRA Publication

Manzano: distribución de micronutrientes en suelo

Para medir la disponibilidad de los micronutrientes en la zona de mayor densidad radical de los frutales de pepita y carozo y sugerir pautas de manejo que permitan un uso sustentable del recurso suelo, se tomaron muestras representativas de 25 montes cultivados con manzanos a lo largo del Alto...
María C. Aruani
Enrique Sánchez
Universidad Nacional de Cuyo. Argentina

Fertilización del Olivo en el Valle del Huasco

El olivo ha sido considerado tradicionalmente como un árbol de gran rusticidad, capaz de desarrollarse en suelos marginales y con escaso aporte de agua de riego y fertilizantes. En el país, este manejo productivo ha tenido como consecuencia general una disminución gradual de...
Antonio Ibacache Gongález
Carlos Sierra Bernal
Francisco Tapia Contreras
INIA Chile