Distribution of cationic micronutrients in relation to different soil properties and fractions of phosphorus in coastal soils of West Bengal

Q4 Agricultural and Biological Sciences

Journal of the Indian Society of Soil Science Pub Date : 2021-07-30 DOI:10.5958/0974-0228.2021.00038.4

P. Naskar, D. Das, D. Ghosh

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引用次数: 1

Abstract

This study aims to establish the relationships between cationic micronutrients and soil properties in 52 surface soils (0-15 cm) collected from coastal areas of West Bengal, India. The initial status of cationic micronutrients and their relationship with soil properties were also studied. The DTPA-extractable micronutrients namely, zinc (Zn), iron (Fe), manganese (Mn) and copper (Cu) ranged from 0.03-2.65, 5.59-68.4, 10.8-49.9 and 0.69-3.71 mg kg-1 with mean values of 0.65, 27.3, 33.7 and 1.71 mg kg-1, respectively. Different soil properties namely, pH, organic carbon (OC), electric conductivity (EC), cation exchange capacity (CEC), Olsen-P and different inorganic phosphorus (P) fractions were determined. Results showed a significant negative correlations between pH and Zn, Fe, Mn and Cu, whereas OC showed positive and significant correlations with Zn, Fe and Cu and non-significant positive correlations with Mn. The EC showed the non-significant negative correlations with Fe and Cu and non-significant positive correlation with Zn and Mn. Olsen-P showed the non-significant positive correlations with Zn, Fe and Cu and non-significant negative correlations with Mn. Results also revealed that CEC and EC enhanced the loosely bound-P explaining 47% of total variability. Loosely bound-P and reductant soluble-P showed the significant negative correlations with all the micronutrients. However, Al-P showed the significant positive correlations with Zn, Fe and Cu.

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西孟加拉邦沿海土壤阳离子微量元素分布与不同土壤性质和磷组分的关系

本研究旨在建立从印度西孟加拉邦沿海地区采集的52种表层土壤(0 ~ 15 cm)中阳离子微量元素与土壤性质之间的关系。研究了阳离子微量元素的初始状态及其与土壤性质的关系。dtpa可提取微量元素锌(Zn)、铁(Fe)、锰(Mn)和铜(Cu)分别为0.03 ~ 2.65、5.59 ~ 68.4、10.8 ~ 49.9和0.69 ~ 3.71 mg kg-1，平均值分别为0.65、27.3、33.7和1.71 mg kg-1。测定了土壤pH、有机碳(OC)、电导率(EC)、阳离子交换容量(CEC)、Olsen-P和不同无机磷(P)组分。结果表明，pH与Zn、Fe、Mn、Cu呈显著负相关，OC与Zn、Fe、Cu呈显著正相关，与Mn呈不显著正相关。EC与Fe、Cu呈不显著负相关，与Zn、Mn呈不显著正相关。Olsen-P与Zn、Fe、Cu呈不显著正相关，与Mn呈不显著负相关。结果还显示，CEC和EC增强了松散结合p，解释了47%的总变异。松散结合磷和还原剂可溶性磷与各微量元素呈显著负相关。Al-P与Zn、Fe、Cu呈显著正相关。

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来源期刊

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

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.