Foliar spray of Earthworm urine to improve Amaranthus growth performance and yield

Owa, Stephen Olugbemiga and Ojediran, J. O. and Fadeyi, Oluwatosin (2011) Foliar spray of Earthworm urine to improve Amaranthus growth performance and yield. Journal of Research in Biology, 5. pp. 393-398.

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Abstract

The effects of foliar spray of earthworm urine on plant growth parameters and greengrocery values were studied on the leaf vegetable Amaranthus. The application caused 28% increase in plant height, 166% increase in plant girth taken at the ground level, 20% increase in the number of leaves per plant, 17% increase in length of leaves, 15% in leaf breadth and about 49% in leaf area. It was also observed that the stomatal diameters increased by about 19%. These results of foliar application indicate that earthworm urine contains some plant growth hormone that can be gainfully used to increase not only the yield of the vegetable crop, but also increase its market visual appeal with respect to the length of an Amaranthus stick, the leaf-density per stick and the length and area of a leaf. On a commercial scale earthworm urine application can be mechanized using a sprinkler.

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