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Agricultural and Biological Sciences >
An Asian Journal of Soil Science
Publisher:Rakesh Kumar Singh
Editor in chief:Dr. K. S. Dwivedi
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Polymer Coated Fertilizers As Advance Technique In Nutrient Management
Author:M. Rajeswar Naik, B. Kranthi Kumar And K. Manasa
Volume: 12 | Issue no: 1-2017 | Pagination: 228-232
Acid Sulfate Soils ? Its Characteristics And Nutrient Dynamics
Author:K. R. Dhanya And R. Gladis
Volume: 12 | Issue no: 1-2017 | Pagination: 221-227
Soil is a hetereogenous, dynamic, living system that supports life on earth. Soil health and soil quality are of great relevance in the present day agriculture due to the continuous degradation of soil. Soil acidity is an important parameter that affects the crop yield and quality. Among the acid soils, acid sulfate soils are of great importance because they occupy a considerable area and are potentially productive soils. The objective of this paper is to present a review about the constraints of acid sulfate soils like acidity parameters and nutrient dynamics that hampers crop production.
Importance Of Soil Health Card To Sustain The Living Dynamic System
Author:M. Rajeswar Naik, B. Kranthi Kumar And K. Manasa
Volume: 12 | Issue no: 1-2017 | Pagination: 217-220
Effect Of Magnesium Sources On Dry Matter Yield And Plant Nutrients Content Of Wheat (Triticum Aestivum L.), Barley (Hordeum Vulgare L.) And Maize (Zea Mays L.) Crops Varieties
Author:R. S. Garhwal And J. R. Jat
Volume: 12 | Issue no: 1-2017 | Pagination: 210-216
A pot experiments were conducted during 2005-06 in Rabi seasons at MPUAT, Udaipur (Rajasthan) on the response of wheat, barley and maize varieties of magnesium sources on nutrients status of soils, dry matter yield and nutrient content under grown in clay loam and loamy sand soils. The highest content of Ca was observed under varieties GW-322 of wheat, RD-2035 of barley and Pratap M-5 of maize grown soils. More Mg was observed in varieties Lok-1 of wheat, RD-2624 of barley and Aravali M-3 of maize crops grown soils. The maximum Fe, Mn, Cu and Zn were observed in Lok-1 and Navjot varieties of wheat and maize grown soil. The highest Mg, P, S, Fe, Mn, Cu and Zn content estimated with magnesium sulphate application soils while more Ca content was estimated in soil under application of dolomite. Lok-1(3.18 g/pot) varieties of wheat, RD-2645 (2.67 g/pot) of barley and Pratap M-5 (8.24 g/ pot) of maize were produced highest dry matter yield. Magnesium sulphate application in wheat, barley and maize crops significantly increased dry matter yield (7.28, 4.35 and 2.94%, respectively) over dolomite application. Dry matter yield significantly increased (5.22%, 9.60% and 19.11% of wheat, barley and maize crops, respectively) with grown in clay loam soil than loamy sand soil. The concentration Mg, Fe, Mn, Cu and Zn significantly higher were observed in variety Lok-1 of wheat and varieties RD-2592 of barley shoot tissue. While, highest Ca concentration was found in variety HI-8498 of wheat and variety RD-2552 of barley plant. However, maximum sulphur in variety Raj.3756 and RD-2624 of wheat and barley, respectively. Highest value of Ca, Mg and sulphur content was found in maize varieties PHEM-2, Aravali Makka-1 and Pratap Makka-3 respectively, while, highest phosphorus, Fe, Mn, Cu and Zn content was found in variety Navjot. Ca content was observed significantly higher with application of dolomite grown crops dry matter.
Effect Of Different Growth Regulator Combinations On In Vitro Callusing Of Walnut (J. Regia L.)
Volume: 12 | Issue no: 1-2017 | Pagination: 203-209
The present investigation on effect of different growth regulator combinations on in vitro callusing of walnut (J. regia L.) studies using MS medium was carried out in order to document the available genetic variability in walnut germplasm and to select elite walnut genotypes possessing superior attributes and quality traits. During the survey, data was recorded on one hundred fifty two (152) walnut trees growing in different areas of Kashmir valley. The study also involved establishment of response of elite walnut selections to different plant growth regulators in shoot morphogenesis. Woody species have been found to be far more difficult to clone in vitro than herbaceous plants. Poor response of the explants from mature woody species to in vitro manipulation is usually associated with the problem of browning and explant necrosis. The present studies were conducted on forced explants from three walnut selections (SKUAST 002, SKUAST 008, SKUAST 010). Murashiage and Skoog?s basal medium supplemented with 0.3 mg/l-1 Benzylamino purine and 0.1 mg/l-1 indole-3-butyric acid the success varied between zero to 63.88 per cent. Data recorded in per cent was transformed to arc sin-1 values. Accessions revealed a non-significant difference in influencing the callusing of explant tissues after application of the growth regulators. The values for SKUA-002, SKUA-008 and SKUA-010 were 28.08, 25.25 and 28.52 corresponding 27.91, 24.68 and 28.55 per cent callusing, respectively.
Detection Of Some Soil Properties Using Hyperspectral Remote Sensing Of Semi Arid Region Of Tamil Nadu
Author:Rajeshwar Malavath And S. Mani
Volume: 12 | Issue no: 1-2017 | Pagination: 191-202
Remote sensing with hyper spectral sensors can provide the fine resolution required for sitespecific farming. The within-field spatial distribution of some soil properties was found by using multiple linear regressions to select the best combinations of wave bands, taken from among a full set of 512 narrow bands in the wavelength range of 350 to 1050 nm. The resulting regression equations made it possible to calculate the value of the soil property with a spatial resolution of 3.0 nm FWHM (Full Width Half Maximum). Both surface and subsurface samples of soil profile were taken from the three research stations. The soil samples were tested in a laboratory for 20 different properties. The per cent sand was found to be detectable with a reasonable degree of accuracy with R2 = 0.851 for a three parameter model; the best combination of wavelengths was 426.81, 730.47 and 1037.7 nm. For silt, clay, field capacity, wilting point, Available water content, pH, electrical conductivity and CaCO3 the results were ranges of degree of accuracy with R2 from 0.609 to 826. The soil exchangeable properties such as Ca, Mg, Na and CEC, chemical composition such as SiO2 and Fe2O3 R2 values varied from 759 to 906. The poorest fit was for organic carbon with R2 = 0.220 followed by Al2O3 (R2 = 0.313). Available micronutrients (Fe and Mn) had R2 0.491 and 0490. For all the properties except organic carbon and Al2O3, the correlation was statistically significant. The main findings were that some soil properties can be accurately detected using hyper spectral remote sensing.
Assessment Of Water Quality Of River Navua, Fiji For Irrigation Purpose
Author:Indra Raj Singh And Saurindra Nr Goswami
Volume: 12 | Issue no: 1-2017 | Pagination: 187-190
Quality of water has been a major concern due to ever increase in human development activities that over exploit and pollute the water resources. Water resources like rivers, lakes, canals etc. are generally used for agricultural production in most of the countries.The sustainable agricultural development depends on the efficient utilization of existing water resources; therefore, quality of irrigation water is an important criteria of consideration for sustainable agricultural production. Various scientific methods are generally used for determination of water quality. This paper is an attempt to analyze the water quality of river Navua in Fiji for irrigation purpose. Water samples for laboratory testing were collected from 6 different sampling sites. Water quality variables were measured and the samples were analyzed for pH, electrical conductivity (EC), total soluble salts (TSS), chloride content (CC), residual sodium carbonate (RSC) and sodium adsorption ratio (SAR). The evaluation of the irrigation water quality parameters as an indicator in the Navua River are summarized in this article.
Yield, Nutrient And Water Use Efficiency And Economics Of Maize As Influenced By Levels Of Irrigation And Fertigation
Author:J. S. Venkata Shiva Reddyand R. Krishna Murthy
Volume: 12 | Issue no: 1-2017 | Pagination: 181-186
A field experiment was conducted during Kharif 2015 at Zonal Agricultural Research Station, V.C. Farm, Mandya, Southern Dry Zone of Karnataka to study the growth and yield of maize as influenced by drip fertigation. The experiment was laid out in Randomized Complete Block Design with three replications and eleven treatments comprising two levels of irrigation and four levels of fertilizers, absolute control, package of practice and paired row of spacing 45 x 75 cm. Irrigation @ 100% cumulative pan evaporation + drip fertigation 125% recommended dose fertilizer was found higher kernel yield (7763 kg ha-1) and stover yield (8159 kg ha-1). Higher nitrogen, phosphorus and potassium use efficiency was recorded in irrigation @ 100% cumulative pan evaporation + drip fertigation 75% recommended dose fertilizer (65, 131 and 245 kg kg-1, respectively). Significantly higher water use efficiency was found in irrigation @75% cumulative pan evaporation+ drip fertigation 125% recommended dose of fertilizer (132.17 kg ha cm-1) over University of Agricultural Sciences- package (74.18 kg ha cm-1). Higher cost of cultivation was recorded in irrigation @100% cumulative pan evaporation + drip fertigation 125% recommended doses fertilizer (Rs.37089 ha-1) followed by irrigation @100% cumulative pan evaporation + drip fertigation 100% recommended dose fertilizer (Rs. 35379 ha-1).
Characterization Of Selected Cotton Growing Soils Of Wardha District, Maharashtra
Author:Nilima S. Sadanshiv, N.S. Waghand Sonal I. Thelkar
Volume: 12 | Issue no: 1-2017 | Pagination: 174-180
Nine cotton growing soils located on Deoli, Wardha, Karanja, Ashti tehsils of Wardha district, Maharashtra was characterized. Horizon-wise soil samples were collected and studied for morphological, physical and chemical properties. The soils were brown to very dark gray in colour, shallow (31 cm) to very deep (150 cm), silty clay loam to clay in texture, imperfectly to well drained and most of the soils had sub-angular blocky structure in the B horizon with a few of them having pressure faces and slickensides. The soil had mildly alkaline to strongly alkaline, all these soils were non-saline, organic carbon was low and decreased with depth, high CEC with calcium as dominant cation on exchange complex. These soils were classified as Typic Haplusterts, Typic Calciusterts, Typic Haplustepts, Typic Calciustepts and Lithic Ustorthents at subgroup level.
Clay Mineralogy And Geochemistry Of Some Black, Red And Red Laterite Soils In Semi Arid Tropical Region Of Tamil Nadu
Author:Rajeshwar Malavath And S.Mani
Volume: 12 | Issue no: 1-2017 | Pagination: 162-173
The X-ray diffraction pattern of soil clay fraction of one red soil pedon from Maize Research Station, Vagarai of Dindigul district, one black soil pedon from Cotton Research Station, Veppanthatai (Perambalur district) and one red laterite soil from Dryland Agricultural Research Station, Chettinad of Sivaganga district of Tamil Nadu was carried out to distinguish the distribution of clay minerals by using X-ray diffraction method and the mineral composition was assessed semiquantitatively. The black soil pedon revealed the dominance of smectite in association with small quantities of illite and kaolinite. The red soil pedon clay faction was ?mixed? with smectite, illite and kaolinite type of clay minerals. The dominant clay mineral was kaolinite with small quantities of illite in red laterite soils pedon. The chemical composition of soils exhibited the siliceous nature with broad and large silica/sesquioxides and silica/ alumina ratios. The wider ratios of SiO2/R2O3 and SiO2/Al2O3 (4.64 to 5.61 and 5.75 to 6.94) were found in the black soils pedon followed by red soils pedon (4.55 to 5.01 and 7.78 to 9.64), respectively where smectite and illite were the dominant clay minerals. The narrow silica/ sesquioxides and silica/alumina ratios (2.23 to 2.56 and 4.13 to 5.37) were found in red laterite soils where Kaolinite was dominant clay mineral in semi arid tropical region of Tamil Nadu.
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