All Title Author
Keywords Abstract

Publish in OALib Journal
ISSN: 2333-9721
APC: Only $99

ViewsDownloads

Relative Articles

EVALUACIóN DE UNA FUENTE DE ENMIENDA LíQUIDA EN EL RENDIMIENTO DEL ARROZ EN UN ULTISOL DE LA ZONA NORTE DE COSTA RICA

Cambios en la productividad de un Ultisol degradado mediante la aplicación de estiércol bovino Productivity changes in a degraded Ultisol of the Machiques Colón, by the application of cattle dung

Effects of Source and Rate of Nitrogen Fertilizer on Yield, Yield Components and Quality of Winter Rapeseed (Brassica napus L.) Efecto de la Fuente y Dosis de Fertilizantes Nitrogenados en el Rendimiento, Componentes de Rendimiento y Calidad de Semilla de Canola (Brassica napus L.)

Efectos del estiércol bovino sobre algunas propiedades químicas de un Ultisol degradado en el área de la Machiques Colón, estado Zulia Cattle dung effects on chemical properties of degraded ultisol in the Machiques-Colón.

Las estelas argáricas de Fuente álamo

Recordando a Nicolás de la Fuente

Efecto de la fuente energética y el nivel de energía sobre la longitud de vellosidades intestinales, la respuesta inmune y el rendimiento productivo en pollos de engorda

Venezuelan Constitutional Amendment 2009 on Four National Front Pages/ La enmienda constitucional de Venezuela 2009, en cuatro portadas nacionales

Innovar en operaciones, fuente de ventaja competitiva

Influencia del material de enmienda en el compostaje de lodos de Plantas de Tratamiento de Aguas Residuales - PTAR The influence of amendment material on biosolid composting of sludge from a waste-water treatment plant

More...

Evaluación de una fuente de enmienda líquida en el rendimiento del arroz en un ultisol de la zona norte de Costa Rica

Keywords: acid soils, liming, liquid lime, ultisols, rice oryza sativa.

Full-Text   Cite this paper   Add to My Lib

Abstract:

a field experiment was conducted, to evaluate the effect of applying a liquid lime amendment on rice yield and soil fertility, in an ultisol at los chiles, alajuela. the liquid amendment contains 40% of ca in form of caco3 and 6.9% of n as urea (cal 56?). the treatments were: control without lime; cal 56 8 l.ha-1; cal 56 10 l.ha-1; and cal 56 6 l.ha-1 + nitro ll 4 l.ha-1. nitro ll is a controlled-release liquid fertilizer that contains 33% of n. the products were applied in water with a back pump, using a volume of mixture of 200 l.ha-1, spraying on the ground 8 days after rice germination. plots 10x10 m were used, with an experimental design of randomized complete block with 4 treatments and 4 replicates. there were no significant differences in panicle size (cm), number of spikelets per panicle, total number of grains per panicle, number of grains filled, empty grains, and 1000-grain weight, although most of these variables showed higher values than the control with the application of the liquid amendment. there were significant differences (p<0.01) in rice grain yield. the dose of 8 l.ha-1 of cal 56 showed the best agronomic yield. the dose of 10 l.ha-1 of cal 56 increased slightly the content of ca and ecec in the soil.

Full-Text

comments powered by Disqus