Monitoring of soil biochemical quality parameters under greenhouse spinach cultivation through animal waste recycling

Sarkar, Binoy and Choi, Hong Lim and Zhu, Kun and Mandal, Asit and Biswas, Bhabananda and Suresh, Arumuganainar (2016) Monitoring of soil biochemical quality parameters under greenhouse spinach cultivation through animal waste recycling. Chemistry and Ecology, 32 (5). pp. 407-418. ISSN 0275-7540

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Abstract

Under the intensive agricultural system, direct application of animal slurries to soils can provide a sustainable disposal of these wastes by inducing positive changes in soil quality and fertility. However, how animal wastes quantitatively affect the key nutrients (C, N, P and S) transforming soil enzymes is not clearly known. A greenhouse spinach cultivation study demonstrated that pig slurry, either in raw (RS) or processed (aerobically aged) (PS) form, significantly (p <.05) improved the enzymatic activities (phosphatase (10–36%), β-glucosidase (23–39%), urease (59–103%), nitrate reductase (73–103%) and dehydrogenase (27–72%)) and microbial growth in soil as compared to the unamended control. However, it did not significantly (p >.05) alter the aryl sulphatase enzyme activity. Slurry applications also significantly improved the macro (N, P and K) and micronutrients (Cu, Mn, Zn and Fe) uptake by spinach plant and hence the yield (2.9–3.38 times higher than control). Similarly, compared to chemical fertilisers the application of pig slurries improved soil biological and biochemical parameters as well as plant nutrients uptake. This study demonstrated the closing of global energy and nutrient cycles through land application of animal wastes without compromising the crop yield.

Item Type:
Journal Article
Journal or Publication Title:
Chemistry and Ecology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900
Subjects:
ID Code:
140624
Deposited By:
Deposited On:
27 Jan 2020 13:50
Refereed?:
Yes
Published?:
Published
Last Modified:
03 Mar 2020 05:45