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Article Open Access http://dx.doi.org/10.26855/ea.2021.06.003

Effects of Coconut Chaff on the Physicochemical and Enzyme Activity in Coastal Soil

Xiao Deng1,2,3, Chunyuan Wu1,2,3, Qinfen Li1,2,*

1Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China. 

2National Agricultural Experimental Station for Agricultural Environment, Danzhou, 571737, China.

3Hainan Key Laboratory of Tropical Eco-Circular Agriculture, Haikou, 571101, China.

*Corresponding author: Qinfen Li

Published: March 25,2021

Abstract

The coconut chaff and coastal soil were used as soil improvement material and the improved object, respectively. Using pot experiment of planting water spinach to study the improvement effect of the coconut chaff on coastal soil under the conditions without chemical fertilizer utilization. Five treatments were designed by mixing the coconut chaff and coastal soil in different volume ratios of 0:20, 1:20, 2:20, 3:20 and 4:20. The results showed that adding the coconut chaff could obviously promote the growth of water spinach, and the average number of leaves, weight per plant and root weight per plant were increased by 11.3%-22.5%, 40.0%-47.5%, and 106%-175%, respectively. And the soil pH value was changed from acidity to neutral. The contents of organic matter, total nitrogen, available phosphate and available potassium of coastal soil were increased by 11.1%-28.1%, 31.3%-35.6%, 13.0%-23.5% and 9.9%-44.8%, respec-tively. The activities of urease, catalase and acid invertase of coastal soil were increased by 0.3%-15.1%, 18.7%-35.1% and 47.9%-158%, respectively. Especially, the treatments with the addition ratios of 2:20-4:20 could significantly improve the soil pH value and increase the soil nutrient contents and enzyme activities (p < 0.05). It was proved that adding the coconut chaff in the right proportion can improve the physicochemical properties of coastal soil and achieve the purpose of soil improvement.

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How to cite this paper

Effects of Coconut Chaff on the Physicochemical and Enzyme Activity in Coastal Soil

How to cite this paper: Xiao Deng, Chunyuan Wu, Qinfen Li. (2021). Effects of Coconut Chaff on the Physicochemical and Enzyme Activity in Coastal Soil. Engineering Advances, 1(1), 16-20.

DOI: http://dx.doi.org/10.26855/ea.2021.06.003

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