Journal of Food, Agriculture and Environment
Vol 12,
Issue 2,2014
Online ISSN: 1459-0263
Print ISSN: 1459-0255
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Effects of combined application of organic and chemical fertilizers on root physioecological characteristics of maize after silking
Author(s):
Ri Song,
Li Liu, Rengui Zhao, Xiwen Shao, Chunsheng Wu *Recieved Date: 2014-01-07, Accepted Date: 2014-03-27
Abstract:The post reproductive stage is the key period for the formation of maize (Zea mays L.) grain; at the same time, it is the withering period for maize root. Our main objective was to determine whether organic fertilizers affect root physioecological characteristics of maize differently than mineral fertilizers. Effects of a combined application of chemical and organic fertilizers on the root system of maize in the post reproductive stage were investigated through the experiment with soil column culture. The results indicate that compared with sole application of chemical fertilizers, the combined application increased root dry weight in each soil layer, especially in the middle and lower layers, increased root bleeding sap, delayed the decline of root activities, reduced root MDA content, and elevated root SOD activity. It is concluded that a combined application of chemical and organic fertilizers can delay maize root senescence during the post reproductive stage and finally increase the grain yield of maize.
Keywords:Maize,
MDA, organic fertilizer, root activity, root weight, SODJournal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 2
Category: Agriculture
Pages: 387-390
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