Results 1 to 10 of about 21 (18)

Cuantificación de bacterias nitrificantes en un suelo Typic melanudands en tres condiciones de uso de suelo en Pasto, Nariño, Colombia

open access: yesCiencia y Tecnología Agropecuaria, 2021
El presente estudio se realizó en el municipio de Pasto (Nariño, Colombia), con el fin de estimar la cantidad de bacterias oxidadoras de amonio (BOA) y bacterias oxidadoras de nitrito (BON), en tres usos del suelo (bosque secundario, pastura tradicional
Lubi Yomaira Culchac Cuaran   +2 more
doaj   +4 more sources

Organic acids production by rhizosphere microorganisms isolated from a Typic Melanudands and its effects on the inorganic phosphates solubilization

open access: yesActa Agronómica, 2017
It has been established that organic acid secretion by rhizosphere microorganisms is one of the mechanisms to solubilize the phosphorus (P) attached to insoluble mineral compounds in soil.
Eduardo José Serna Posso   +2 more
doaj   +4 more sources

Retención y disponibilidad de fósforo asociado a la materia orgánica en un Typic Melanudands del departamento del Cauca, Colombia

open access: yesActa Agronómica, 2013
En el departamento del Cauca, Colombia, en un Typic Melanudands cultivado con café (Coffea arabica) y guamo (Inga spuria) como sombrío, se evaluó el efecto de la materia orgánica (M.O.) sobre la retención y disponibilidad de fósforo (P), mediante ...
Isabel Bravo   +2 more
doaj   +1 more source

Karakteristik sifat fisik andisols typic melanudands pada beberapa kemiringan lereng di perkebunan teh gambung, Jawa barat

open access: yesJurnal Pengelolaan Perkebunan (JPP), 2022
Andisols merupakan tanah yang dominan di tanami di perkebunan teh dengan ciri terdapat di dataran tinggi, areal berbukit dengan curah hujan tinggi dan mempunyai kandungan bahan organik tinggi. Pemahaman yang baik tentang karakteristik tanah di perkebunan teh menjadi kunci untuk menjaga produktivitas teh.
Restu Wulansari   +2 more
openaire   +1 more source

Effect of soil acidification on regrowth of orchardgrass (Dactylis glomerata) under application of grazing cattle dung, cattle manure compost, and chemical fertilizer

open access: yesGrassland Science, Volume 68, Issue 3, Page 255-262, July 2022., 2022
Abstract Orchardgrass (Dactylis glomerata) persists poorly in acidic soils. Not many studies have looked into the effects of fertilizers in improving orchardgrass persistence within acidic soils. We conducted experiments on 64 individual potted orchardgrass plants, which were defoliated to 5 cm and assigned to one of the following four treatment groups:
Hidetoshi Kakihara, Shin‐ichiro Ogura
wiley   +1 more source

Silicon and Aluminum Mobility in Soils of Jeju Island, Korea

open access: yesApplied and Environmental Soil Science, Volume 2020, Issue 1, 2020., 2020
The objective of the study is to investigate the effect of released silicon (Si) and aluminum (Al) during the formation of volcanic ash soil on the content of Si in groundwater on Jeju Island. Volcanic ash soils in Jeju Island were formed from pyroclastic materials that originated from basalt.
Won-Pyo Park   +2 more
wiley   +1 more source

Capacidad solubilizadora de fosfato de aluminio por hongos rizosféricos aislados de un Andisol colombiano

open access: yesEntramado, 2018
A partir de un Typic Melanudands cultivado con café (Coffea arabica variedad Caturra), proveniente del Departamento del Cauca (Colombia), se aislaron hongos con capacidad solubilizadora de fosfato de aluminio (Al-P), de los cuales se seleccionaron dos ...
Gina Vanessa Callejas Cañarte   +2 more
doaj   +1 more source

Bound Water, Phase Configuration, and Dielectric Damping Effects on TDR‐Measured Apparent Permittivity

open access: yesVadose Zone Journal, Volume 18, Issue 1, Page 1-14, 2019., 2019
Core Ideas Frequency‐dependent bound water permittivity influences TDR‐measured Ka. Predictive power of frequency‐independent dielectric mixing models is limited. TDR measurements of Ka should be paired with effective frequency measurements. The time domain reflectometry (TDR) method measures the soil apparent permittivity (Ka), which is the basis for ...
Miles Dyck   +3 more
wiley   +1 more source

Plant Growth Response of Pinus patula and P. maximinoi Seedlings at Nursery to Three Types of Ectomycorrhizal Inocula

open access: yesApplied and Environmental Soil Science, Volume 2018, Issue 1, 2018., 2018
The objective of this study was to assess the response in seedling growth, root colonization, and P content of seedlings of Pinus maximinoi and P. patula to the inoculation with three types of ectomycorrhizal inocula with three doses (17.5, 35, and 70 kg·m−3) in nursery.
Manuel F. Restrepo-Llano   +3 more
wiley   +1 more source

Evaluation of Phytoavailability of Heavy Metals to Chinese Cabbage (Brassica chinensis L.) in Rural Soils

open access: yesThe Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
This study compared the extractability of Cd, Cu, Ni, Pb, and Zn by 8 extraction protocols for 22 representative rural soils in Taiwan and correlated the extractable amounts of the metals with their uptake by Chinese cabbage for developing an empirical model to predict metal phytoavailability based on soil properties. Chemical agents in these protocols
Yao-Tsung Chang   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy