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Zinc Nutrition of Tuber Crops in Ultisols of Kerala

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Title Zinc Nutrition of Tuber Crops in Ultisols of Kerala
Not Available
 
Creator K. Susan John1, P.S. Anju1, G. Suja1, S.U. Shanida Beegum1, S. Chithra1, James George1, C.S. Ravindran1, M. Manikantan Nair1 and Jeena Mathew2
 
Subject Zinc dynamics, long-term fertilizer experiment, cyanogenic glucosides, soil test based zinc recommendation, customized fertilizers, Thippi compost
 
Description Not Available
Cassava, sweet potato, elephant foot yam, yams, taro, tannia, arrow root and coleus are the important tropical
tuberous vegetables grown for their edible tubers and leaves which can meet the energy, nutritional and medicinal
requirements of the consumers. Among the tropical tuber crops, cassava is most important with respect to higher
biological efficiency, area under cultivation, acceptability as a secondary staple, ability to thrive under marginal soil
and environmental conditions, tolerance to pests and diseases, quantity and quality of starch, and its excellent
physico-chemical and biochemical properties for the preparation of value-added products. Inherently high yield
potential of these crops catalyses the nutrient removal from the soil, necessitating their replenishment through external
sources. Micronutrient requirements of these crops are very high; deficiency disorders, however, manifest only in
extreme cases. Zinc depletion noticed under continuous cultivation of cassava over 14 years under a permanent
manurial experiment made us initiate intensive studies on Zn nutrition in tropical tuber crops and we made significant
accomplishments in this field. These include Zn dynamics under a long-term fertilizer management, especially with
respect to reduction in cyanogen and increase in starch content of tubers; determination of the Zn status of the soils of
Kerala; arriving at the Zn content in customized fertilizers developed for elephant foot yam; preparation of a Zn-enriched
compost from cassava starch factory solid waste; development of low input management strategy for cassava involving
soil test based application of Zn; and their respective on-farm validation trials.
Not Available
 
Date 2021-08-06T04:02:36Z
2021-08-06T04:02:36Z
2018-03-01
 
Type Article
 
Identifier Not Available
0973-1822
http://krishi.icar.gov.in/jspui/handle/123456789/53322
 
Language English
 
Relation Not Available;
 
Publisher Fertilizer Association oF India