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Quantification of Dry-Matter Accumulation and Nutrient Uptake Pattern of Short Day Onion (Allium cepa L.)

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Title Quantification of Dry-Matter Accumulation and Nutrient Uptake Pattern of Short Day Onion (Allium cepa L.)
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Creator A. Thangasamy
 
Subject Bulb yield, fertilizer management, growth curve, growth stages, nutrient-use efficiency
 
Description Not Available
Understanding the physiology of dry-matter accumulation and nutrient uptake pattern of an onion crop is an essential criteria for optimizing fertilizer practices. An experiment was conducted to estimate the dry-matter accumulation and nutrient uptake pattern of short day onion. The dry-matter accumulation and nutrient uptake followed the sigmoid growth curve pattern. Uptake of nitrogen and potassium was slow for the first 15 days followed by rapid uptake from 15 to 60 days after transplanting and accounted for 76.2–78.2% of total uptake. Takeup of phosphorus, sulfur, manganese, zinc, and copper uptake was greater during 30 to 75 days after transplanting and accounted for 64.9–70.6% of total uptake. The deficiency of nutrients during these period reduces the crop yield significantly. The dry-matter accumulation and nutrient-uptake pattern reported in this study provide an opportunity for optimizing quantity and timing of nutrient application through fertilizers for short day onions.
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Date 2017-08-19T04:58:24Z
2017-08-19T04:58:24Z
2015-09-09
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/5201
 
Language English
 
Relation Not Available;
 
Publisher Taylor and Francis Online