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Accueil du site → Doctorat → Inde → 2015 → Evaluation of soil and ground water quality of the Krishna valley in Marathwada region of Maharashtra for land use planning

Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (2015)

Evaluation of soil and ground water quality of the Krishna valley in Marathwada region of Maharashtra for land use planning

Adkine, Sadashiv Ashraoba

Titre : Evaluation of soil and ground water quality of the Krishna valley in Marathwada region of Maharashtra for land use planning

Auteur : Adkine, Sadashiv Ashraoba

Université de soutenance : Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani

Grade : Doctor of Philosophy (PhD) in Soil Science and Agricultural Chemistry 2015

Résumé partiel
The present investigation was carried out on the topic “Evaluation of soil and ground water quality of the Krishna valley in Marathwada region of Maharashtra for land use planning”. The study was aimed at to characterize the soils of the study area for their morphological, physical, chemical and mineralogical properties ; soil classification ; and soil-site suitability for sorghum, cotton, pigeonpea and soybean crops. In addition, it was also aimed to evaluate the quality of ground water for irrigation. Geographically, the Krishna valley in Marathwada region of Maharashtra is located between 18° 07’ 83” to 18° 37’ 96” N latitudes and 75° 17’ 14” to 75° 49’ 14” E longitudes. The climate of the area is hot, dry, sub humid with mean annual rainfall of 870 mm of which nearly 85 per cent is received during months of June to September. Fifteen representative pedons representing different topographic units of Krishna valley in Marathwada region were characterized and classified. The soils were very shallow to very deep in depth, black (10YR 2.5/1) to very pale brown (10YR 7/4) in colour, silty clay loam to clayey in texture, granular to angular blocky in structure. The PAWC of the soils varied from 59.98 to 392.15 mm. The soils were slightly to moderately alkaline (pH 7.10 to 8.27) in reaction, low to medium in organic carbon content (0.09 to 0.93 per cent) and calcareous in nature (0.92 to 23.11% 1 CaCOs). The cation exchange capacity of soils varied from 24.56 to78.18 cmol (p+) kg’1. The calcium was the dominant cation followed by magnesium, sodium and potassium. The base saturation varied from 63.03 to 114.80 per cent and exchangeable sodium varied from 1.42 to 16.95 per cent. The silt and total clay fractions contain smectite, vermiculite, mica, chlorite and small amount of zeolite, palygorskite minerals. The soils were very low to moderate in available nitrogen and phosphorus, low to very high in available potassium and deficient to sufficient in available sulphur content

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