Soil Management - Fertilization, Compost, Nutrients

Effect of Californian Red Worm (Eisenia foetida) on the Nutrient Dynamics of a Mixture of Semicomposted Materials

The efficiency of composting processes with and without the addition of Californian red worms (Eisenia foetida) was evaluated, using manure of dairy cows to generate organic fertilizer. Several parameters were assessed as physio-chemical indicators of maturity, such as temperature, pH, C/N ratio...
Hugo Castillo
Adriana Hernández
David Dominguez
Damaris Ojeda
Chilean Journal of Agricultural Research

Efecto de la clorosis férrica en el tamaño y la concentración de aceite en el fruto del palto (Persea americana Mill.)

Con el objetivo de determinar en qué medida la clorosis férrica influye en el tamaño y el contenido de aceite en el fruto de palto (Persea americana Mill.) se realizó un estudio en un huerto de 22 años cv. Hass, ubicado en Quillota, Chile (32º51’ lat...
Bruno Razeto
Johanna Palacios
Chilean Journal of Agricultural Research

Vermicomposta como alternativa orgánica en la producción de tomate en invernadero

La utilización de vermicomposta de residuos orgánicos se ha incrementado en diferentes partes del mundo como abono de alta calidad. El objetivo de esta investigación fue determinar si la vermicomposta puede suplir parcial o totalmente los requerimientos de N, P, K en el...
N. Rodríguez-Dimas
P. Cano-Ríos
E. Favela-Chávez
U. Figueroa-Viramontes
V. de Paul-Álvarez
A. Palomo-Gil
C. Márquez-Hernández
A. Moreno-Reséndez
Revista Chapingo Serie Horticultura

El control orgánico de plagas y enfermedades de los cultivos y la fertilización natural del suelo

Este sencillo manual busca incentivar la práctica de mejores técnicas agrícolas (agroecología), recopiladas del conocimiento ancestral, pero también de la investigación moderna, las que pretenden acercar al productor campesino con la naturaleza, ya que de...
Vanessa Alexandra Ramón
Fabián Rodas
DarwinNet

Green index to estimate crop nitrogen status in potato processing varieties

Nitrogen is the most important nutrient in growing potatoes (Solanum tuberosum L.) because either a deficit or excess in its supply can affect yield and quality, resulting in economic losses. To make a rational use of this nutrient, it is necessary to monitor N status during crop development. The...
Claudia Marcela Giletto
Cecilia Díaz
Jorge Edgardo Rattín
Hernán Eduardo Echeverría
Daniel Osmar Caldiz
Chilean Journal of Agricultural Research

Recomendaciones para olivar con problemas por inundación

Este trabajo es un breve recopilatorio sobre los daños que pueden causar las lluvias persistentes o de fuerte intensidad en el olivar, así como las actuaciones recomendadas para evitar o paliar dichos daños. El olivar es un cultivo de clima mediterráneo,...
O. Arquero
N. Serrano
Instituto de Investigación y Formación Agraria y Pesquera, España

Fertilizer Pellets Made from Composted Livestock Manure

Compost made from livestock manure is an effective material for improving the physical and chemical condition of soil. However, there are two factors that limit the application of ordinary composted livestock manure. The first problem is that composted livestock manure usually has a high moisture...
Masayuki Hara
Food & Fertilizer Technology Center, Taiwan

Effects of Source and Rate of Nitrogen Fertilizer on Yield, Yield Components and Quality of Winter Rapeseed (Brassica napus L.)

Winter rapeseed (Brassica napus L.) has potential to become an alternate oilseed crop both for edible oil production and energy agriculture (biofuel production) for Turkey. This study was conducted to determine the effect of year, N sources and doses on the yield and quality traits of winter...
Özden Öztürk
Chilean Journal of Agricultural Research

Nitrogen Mineralization and Released Nutrients in a Volcanic Soil Amended with Poultry Litter

Optimum application rates of poultry litter (PL) spread out on the farmer´s field is a valuable source of available plant nutrients. The aim of this study was to compare the effect of two rates of PL and conventional fertilization (CF) on N mineralization and P, K, Zn, and Cu availability...
Juan Hirzel
Pablo Undurraga
Ingrid Walter
Chilean Journal of Agricultural Research

Fertility Management of the Soil-Rhizosphere System for Efficient Fertilizer Use in Vegetable Production

Extensive researches on soil-rhizosphere processes have shown that a very small proportion of rhizosphere soil is of critical importance for plant growth and health. The soil-rhizosphere zones occupied less than 5-7% volume of the upper 15 cm surface soil in a vegetable field. Designing...
Chin-hua Ma
Manuel C. Palada
Food & Fertilizer Technology Center, Taiwan