Results 21 to 30 of about 583 (178)

Comparación del carbono orgánico proveniente de los ácidos húmicos, ácidos fúlvicos y el grado de humificación en cinco órdenes de suelos

open access: yesPeruvian Journal of Agronomy, 2021
En este estudio se realizaron las comparaciones del contenido de carbono orgánico (CO) en las fracciones de los ácidos húmicos (AH) y los ácidos fúlvicos (AF) en cinco órdenes de suelos (Aridisol, Entisol, Histosol, Inceptisol y Mollisol) y conocer su ...
Sandro Sardón Nina   +2 more
doaj   +1 more source

PERBANDINGAN JENIS MEDIA TANAM TANAH ENTISOL YANG TERPAPAR SATU KALI DAN DUA KALI OLEH LIMBAH CAIR NANAS TERHADAP PERTUMBUHAN SELEDRI (Apium graveolens L.) SEBAGAI SUMBER BELAJAR BIOLOGI

open access: yesBioedukasi: Jurnal Pendidikan Biologi FKIP UM Metro, 2015
. This research to know effect of Pineapple Liquid Compost (PLC) in long term the growth of celery. This research conducted at the village in Yosodadi 21 Polos, East Metro, Metro City since 7 December until 28 February 2015. This research is experimental
Irma Yunita Sari Kartika Sari
doaj   +1 more source

Kinetics of potassium adsorption by Entisols of Greece

open access: yesCommunications in Soil Science and Plant Analysis, 1994
Abstract The kinetics of potassium adsorption from solution to exchangeable phases was investigated on Entisols Herothern from central Greece. Potassium adsorption with time was evaluated on Ca‐saturated samples using 3.5, 16.8, 67.5 and 86.0 ppm initial concentrations and pH levels of 5.0, 6.0, 7.0, 8.0 and 9.0.
Dimirkou, A.   +4 more
openaire   +3 more sources

Phosphorus Fractions and Their Transformations in Entisol

open access: yesJournal of Agricultural Science, 2018
The availability of phosphorus in the soil is a factor that directly interferes with its absorption by plants. This availability can be influenced by the texture, dose of the phosphate fertilizer and the time of contact with the soil. This study aimed to quantify the organic and inorganic fractions of P accumulated in a sandy soil receiving doses of ...
Alessandra Mayumi Tokura Alovisi   +9 more
openaire   +2 more sources

Molecular-Level Insights into Phosphorus Transformation Mechanisms in Entisol Soils under Multiple Long-Term Fertilization Regimes

open access: yesAgronomy, 2022
Improving phosphorus (P) fertilization strategies benefits mitigating future global P shortage and reducing legacy P loss risk in agricultural lands. In this study, the molecular transformation mechanisms of P in Entisol soils under multiple long-term ...
Jin Liu   +11 more
doaj   +1 more source

Efficiency of fluid organomineral fertilizer with pig slurry in nitrogen and phosphorus availability

open access: yesRevista de Ciências Agroveterinárias, 2020
The use of pig slurry (PS) in fluid fertilizer formulation, for nitrogen (N) and phosphorus (P) supply, consists of an innovative technology due to this waste reuse in the environment. The objective of this study was to assess the agronomic efficiency of
Marco André Grohskopf   +5 more
doaj   +1 more source

Kinetic study of phosphorus desorption by Alfisols and Entisols

open access: yesCommunications in Soil Science and Plant Analysis, 1993
Abstract The kinetics of phosphorus (P) desorption by six Greek soils, four Alfisols and two Entisols, have been studied. By the addition of several amounts of P fertilizers at different water/soil rations and different contact times, that amount of P fertilizer required for the two major categories for Greek soils in order to avoid enviromental ...
Dimirkou, A.   +4 more
openaire   +3 more sources

Entisol Chemical Properties In The Organic Agriculture System

open access: yesInternational Journal of Science and Society, 2022
Farming systems based on high input energy materials (fossil materials), such as chemical fertilizers and pesticides, can damage soil properties and will ultimately reduce soil productivity in the future. Alternative agricultural systems using low input energy (LEE) are believed to be able to maintain soil fertility and environmental sustainability ...
openaire   +1 more source

PENGARUH PEMBERIAN PUPUK ORGANIK CAIR LIMBAH UDANG DAN BIOCHAR TEMPURUNG KELAPA TERHADAP KETERSEDIAAN N, P, DAN K TANAH PADA PERTUMBUHAN PAKCOY (Brassica rapa L.)

open access: yesJTSL (Jurnal Tanah dan Sumberdaya Lahan)
Soil types such as Entisol have low nutrient availability and water-holding capacity. Shrimp waste organic fertilizer and coconut shell biochar can be used to improve the physical and chemical properties of Entisol soil.
Jovanka Fitriani Adinda Putri   +1 more
doaj   +1 more source

Variabilidad de δ13C y δ15N en suelo y hojarasca de cacao en El Oro, Ecuador

open access: yesTerra Latinoamericana, 2019
El cacao aporta niveles significativos de carbono (C) y nitrógeno(N) por las hojarascas; el cambio de manejo agronómico ocasiona variación en los contenidos de estos elementos en el suelo. El objetivo fue evaluar las variaciones de los isotopos de δ13C y
Salomón Barrezueta Unda   +3 more
doaj   +1 more source

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