Manejo de Suelos - Fertilización, Compostado, Nutrición vegetal

Asfixia radicular en huertos de paltos: Manejo del riego y suelo

En el palto, los productos de la fotosíntesis y las reservas nutricionales del árbol se distribuyen preferencialmente hacia los frutos y el desarrollo vegetativo del árbol, en desmedro del crecimiento del sistema radicular, lo que hace que las raíces sean altamente...
Raúl Ferreyra E.
Gabriel Sellés V.
Pilar Gil M.
Rafael Ruiz Sch.
INIA Chile

Calculating the Fertilizer Value of Broiler Litter

Given below is a procedure to calculate the value of broiler litter based on prevailing retail selling prices of commercial fertilizers containing nitrogen (N), phosphorus (P) labeled as %P2O5 (the oxide expression used in the fertilizer industry) and potassium (K) labeled as %K2O. The calculation...
David E. Kissel
Mark Risse
Leticia Sonon
Glen Harris
University of Georgia

Lowering the Soil pH with Sulfur

Blueberries prefer acid soils with a pH of 4.5 to 5.5. With the popularity of blueberries many people are interested in quickly adjusting their soil pH. Acidifying soil is not an exact science; this handout is just a guide. The cheapest way to lower the soil pH is to add elemental sulfur to the...
Mark Longstroth
Michigan State University

Soil Application of Zinc Improves Growth and Yield of Tomato

In a glasshouse pot experiment, effect of soil applied Zinc (@ 0, 5, 10 & 15 mg kg-1) on the growth, yield and biochemical attributes was studied of two tomato cultivars; VCT-1 and Riogrande. Zinc application increased the plant growth and fruit yield in both cultivars. Maximum plant growth...
Ali Raza Gurmani
Jalal-Ud-Din
Sami U. Khan
Rani Andaleep
Kashif Waseem
Ahmed Khan
Hadyatullah
International Journal of Agriculture and Biology

Effects of NPK (15:15:15) Fertilizer on Some Growth Indices of Pumpkin

  Effects of NPK (15:15:15) fertilizer on some growth indices of pumpkin, Cucurbita moschata (Duch. ex Lam.) Duch. ex Poir. were studied. Eight treatments viz; 0, 200, 250, 300, 350, 400, 450 and 500 kg of NPK fertilizer per hectare (kg ha-1) were used in a Randomized Complete Block Design (...
K. Okonwu
S.I. Mensah
Asian Journal of Agricultural Research

Uso de compostas y vermicompostas para la producción de tomate orgánico en invernadero

Una alternativa en la agricultura orgánica es la utilización de sustratos orgánicos. El objetivo del presente trabajo fue evaluar el efecto de tres compostas y tres vermicompostas mezcladas en diferentes proporciones (100, 75 y 50%) con arena, sobre el rendimiento y calidad de...
Efraín de la Cruz-Lázaro
Rodolfo Osorio-Osorio
Eusebio Martínez-Moreno
Alejandro J. Lozano del Río
Armando Gómez-Vázquez
Rufo Sánchez-Hernández
Interciencia

Composting on Organic Farms

One of the main goals of every organic farmer is to build longterm soil fertility and tilth by feeding the soil with a variety of natural amendments. The regular addition of compost is one of the best ways to enhance soil organic and humic content, which helps to build a fertile soil structure....
Keith R. Baldwin
Jackie T. Greenfield
North Carolina Cooperative Extension Service

Best Management Practices for Wood Ash as Agricultural Soil Amendment

Wood was burned in the United States in the 1700s through the early 1900s to produce ash for chemical extraction. The ash was used mainly to produce potash for fertilizer and alkali for industry. As other potash production technologies became more economical, the value of wood ash as a raw...
Mark Risse
University of Georgia

Obras de conservación de suelos y agua en laderas

En esta publicación El Proyecto Red SICTA, del IICA/Cooperación Suiza, hace un esfuerzo por rescatar diversas alternativas de Conservación de Suelos y Agua (CSA), tomando en cuenta que las laderas son ambientes heterogéneos. Desde el punto de vista técnico-cient...
Proyecto Red SICTA del IICA/Cooperación Suiza en América Central
Proyecto Red SICTA del IICA/Cooperación Suiza en América Central

Safer Tomato Production Techniques

A field guide for soil fertility and pest management This guide provides comprehensive information for tomato growers and extension staff on healthy seedling production, application of balanced and optimum quantities of organic fertilizers, and management of major insect and mite pests and...
R. Srinivasan
AVRDC – The World Vegetable Center