喀拉拉邦帕拉卡德地区的收缩膨胀土:特征和分类

Q4 Agricultural and Biological Sciences
J. Prasad, K. A. Kumar, K. M. Nair, B. Dhanorkar, K. Niranjan, D. Mohekar, A. Koyal
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引用次数: 1

摘要

对喀拉拉邦Palakkad区Karuvapara系列(P1)和Vannamada系列(P2)的代表性恋童癖进行了表征和分类。土壤为极深灰棕色至深棕色(P1)和极深灰褐色至黑色(P2)。P1的质地从亚土壤中的粘壤土(Ap层)到粘土和砾石粘土不等,而在P2的最后两个层中,P1的质地为砂质粘土(Ap)到粘土但为砂质粘壤土。不同土层的土壤pH值在7.1~8.2之间。Vannamada土壤比Karuvapara土壤保留了更高的有机碳(在Ap层中为1.38%)。除P2的Ap层外,这些土壤的有效N含量中等,但有效P(表层)和K含量较高。土壤中的有效S、DTPA-Cu、DTPA-Fe、DTPA-Mn和热水溶性B均高于临界值,但除P2的Ap层外,DTPA-Zn缺乏。这些土壤在亚群水平上被分类为典型半群(P1)和垂直表群(P2)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Shrink-swell soils of Palakkad district, Kerala: Their characteristics and classification
Representative pedons of Karuvapara series (P1) and Vannamada series (P2) from Palakkad district of Kerala were characterized and classified. The soils were very dark grayish brown to dark brown (P1) and very dark grayish brown to black (P2). The texture of the P1 varied from clay loam (Ap horizon) to clay and gravelly clay in sub-soils, while it was sandy clay (Ap horizon) to clay but sandy clay loam in last two horizons of P2. The pH of the soils in different horizon ranged from 7.1 to 8.2. Vannamada soils retained higher organic carbon (1.38% in Ap horizon) than Karuvapara soils. These soils had medium content of available N barring Ap horizon of P2 but high in available P (surface layer) and K. Available S, DTPA-Cu, DTPA-Fe, DTPA-Mn and hot water-soluble B in the soils were above the critical limit but DTPA-Zn was deficient except in Ap horizon of P2. These soils were classified as Typic Haplusterts (P1) and Vertic Epiaquepts (P2) at subgroup level.
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来源期刊
Journal of the Indian Society of Soil Science
Journal of the Indian Society of Soil Science Agricultural and Biological Sciences-Soil Science
CiteScore
0.80
自引率
0.00%
发文量
0
期刊介绍: To cultivate and promote soil science and kindred branches of science. To disseminate the knowledge of soil science and its applications, through meetings, discussions, and publications. To promote judicious interactive use of soil, water and other natural resources, fertilizer and other inputs to maintain quality and resilience of soil for sustainable agriculture. To foster high standards in the teaching and education of soil science. To work in close association with learned societies and organizations having similar objectives. To create public awareness about the importance of soil as a finite natural resource. To carry out research and to perform all other acts, matters, and things that may assist in, or be conduce to, or be necessary for the fulfillment of objectives and purposes of the Society.
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