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Digital soil mapping from conventional field soil observations
field soil description fuzzy k-means pedometrics regression-kriging terrain
2015/3/9
We tested the performance of a formalized digital soil mapping (DSM) approach comprising fuzzy k-means (FKM) classification and regression-kriging to produce soil type maps from a fine-scale soil obse...
Paddy field soil conservation: Indian historical practices
Stubble Cow Dung Paddy Multi-Crops Heavy Monsoon Rains Soil Conservation
2013/3/4
India is an ancient land having high seasonal rain fall (4 months rain & 8 months dry), has paddy cultivation. Becauses silt-sand separation; buoyant sand gets carried; silt agglutinates. Rill fluid d...
Distribution of Arbuscular Mycorrhizal Fungi in Upland Field Soil of Japan 1.Relationship between Spore Density and the Soil Environmental Factor
Arbuscular mycorrhizal fungi Available P Spore density Upland field
2009/7/23
To quantify the effects of arbuscular mycorrhizal fungi (AM fungi) on the growth of upland field crops cultivated in Japan, we analyzed soil samples from 124 sites in 18 Japanese prefectures for avail...
Distribution of Arbuscular Mycorrhizal Fungi in Upland Field Soil of Japan 2.Spore Density of Arbuscular Mycorrhizal Fungi and Infection Ratio in Soybean and Maize Fields
Arbuscular mycorrhizal fungi Available phosphate Infection ratio Phosphate adsorption coefficient Spore density
2009/7/23
In this study, soil samples were collected from upland fields where maize and soybeans had been cultivated and the density of AM (arbuscular mycorrhizal) fungal spores and the percentage of soybean ro...
Residue Analysis of the Fungicide Benthiavalicarb-isopropyl and Its Degradation Products in Upland Field Soil
benthiavalicarb-isopropyl degradation products analytical method in soil HPLC
2009/3/6
A method for residue analysis of benthiavalicarb-isopropyl, its diastereomer, and its four degradation products in soil by HPLC was established. The method of extraction under reflux with a mixture ...
Active Moisture Management in Rhizosphere Can Increase Plant Growth, Yield and Fertilizer Availability in Open Field Soil Culture
Chinese cabbage eggplant fertigation growth irrigation control
2010/11/23
A new fertigation management was tested to verify the availability of frequent moisture and nutrition management in rhizosphere of Chinese cabbage and eggplant in open field soil culture. Under fertig...
Radioactive tracer techniques used in solute transport studies in a field soil
tracer techniques solute velocity longitudinal dispersion coefficient bypassing ratio
2008/11/12
Radioactive tracer techniques were used for in-situ measurements of the solute velocity, longitudinal dispersion coefficient, and bypassing ratio, as well as for estimation of the impact of land-use c...
ATRAZINE ADSORPTION-DESORPTION BEHAVIOR IN DAREHASALUIE KAVAR CORN FIELD SOIL
adsorption desorption isotherm
2010/2/4
Adsorption desorption behaviors of widely applied atrazine soil were studied, employing a batch technique as a case study in Darehasaluie Kavar corn field in Fars Province in 2005. Samples were collec...