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Nutritional status of healthy and declining citrus (Citrus reticulata) orchards

Indian Agricultural Research Journals

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Title Nutritional status of healthy and declining citrus (Citrus reticulata) orchards
 
Creator DEY, J K
SINGHA, D D
 
Subject nutritional status, citrus decline, Assam hills, Citrus
 
Description Healthy and declining citrus (Citrus reticulata Blanco) orchards of hill s region of Assam were surveyed for ascertainingnutritional factor causing citrus decline. Both healthy and declining orchards of Karbi Anglong were high in 1,but low in both Ca and P in respect of foliar content. In Karbi Anglong, fruit yield positively correlated with foliar Kcontent. Effect of foliar concentration of K on the fruit yield was however, indirect. In North Cachar Hills, orchards weremostly low in Ca but commonly high in K in respect of foliar content. Declining orchards of North Cachar Hills were lowin foliar P content.In North Cachar Hills, low/fruit yield was associated with lower concentration of available Ca in soils,lower foliar Ca content, and narrow Ca : Mg ratio in leaf. Foliar concentration of K was regulated by soil concentrationratio of K : Ca + Mg or K : Mg in North Cachar Hills, and N : Ca in Karbi Anglong, whereas foliar Ca concentration wasregulated by soil concentration ratio of K : Mg in both the locations. Soil-available Ca content, more than 288 kg/ha, andfoliar Ca : Mg ratio, more than 8.70 were associated with healthy crop in North Cachar Hills. Soil parameters to the depthof 45 cm rather than surface layer (0-15 cm) were significanttly correlated with fruit yield and foliar nutrient content.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2013-02-13
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27340
 
Source The Indian Journal of Agricultural Sciences; Vol 68, No 3 (1998)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/27340/12444
 
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