Publication: Residual Effects of Nickel and Its Interaction with Applied Zinc and NPK Improve the Growth, Yield, and Nutritional Quality of Cowpea and Urease Activity of Soil Grown in Vertisols
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Date
2022
Journal Title
Journal of Soil Science and Plant Nutrition
Journal ISSN
Volume Title
Publisher
Springer Science and Business Media Deutschland GmbH
Abstract
Soil application of nickel (Ni) has low efficiency and expected to produce enough residual effect to cater the need of the next crop in the sequence. A pot experiment was conducted on the soil of previous season pot study, wherein Ni and zinc (Zn) were applied with recommended dose of fertilizers (RDF). This study with cowpea as test crop was conducted on residual level of Ni in soil along with the application of RDF and Zn. The result showed significant increase in plant height, greenness index, number of branches, number of pods plant?1, number of seed pod?1, stover yield, seed yield, and weight of 100 seed of cowpea. All these attributes were highest at 10�mg Ni kg?1 applied in the previous crop along with Zn at the rate of 10�mg�kg?1 in the current experiment (T10). The concentration of iron (Fe), manganese (Mn), and Zn in grain and stover significantly increased up to 10�mg�kg?1 residual Ni (T10), and beyond this, a reduction in concentration was observed. The behavior of these elements with respect to uptake in both grain and stover was similar as that of their concentration. The urease activity and available N content in post-harvest soil increased as the residual Ni content in the soil increased. � 2022, The Author(s) under exclusive licence to Sociedad Chilena de la Ciencia del Suelo.
Description
Keywords
Growth attributes, Nickel, Urease activity, Yield attributes, Zinc