نتایج جستجو برای: vertisols
تعداد نتایج: 281 فیلتر نتایج به سال:
One of the main objectives of soil classification systems is to identify the differences of soil properties for management purposes. In this study, the efficiency of American and WRB soil classification systems were compared in order to describe some of soil physical, chemical and mineralogical properties in arid and semiarid regions of central Iran. Khatoon-Abad and Mobarekeh plains as arid re...
Soil characteristics are affected by climate. Available potassium is one of the most important soil fertility indices. This study was conducted to determine the availability of potassium using Quantity- Intensity (Q/I) relationships in Vertisols of Isfahan and Chaharmahal-Va-Bakhtiari provinces with aridic and xeric moisture regimes, respectively. Soil mineralogy showed that smectite was the do...
Nigeria, the study area lies between latitude 40 and 140 north of equator longitudes 30 150 east Greenwich meridian with two major landforms- lowlands highlands. The vegetation is made up forests in southern part savanna northern part. soil types are ferruginous tropical soils, lithosols, vertisols, regosols, ferrasols alluvial soils. Cytological morphological studies were carried out on Nigeri...
A field experiment was conducted to study the “Effect of nutrient omission on yield, uptake and economics rabi sorghum in vertisols under rainfed irrigated conditions” at AICRP sorghum, MARS, University Agricultural Sciences, Dharwad, during 2020. The consisted two main plots (M1: Rainfed M2: Irrigated) nine treatments. laid out a split plot design with three replications. results indicated tha...
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