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Enhancing the fruit yield of ‘Robusta’ banana (Musa × paradisiaca) by de-navelling and feeding nitrogen, potassium and sulphur through the distal stalk-end of the bunch

Indian Agricultural Research Journals

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Title Enhancing the fruit yield of ‘Robusta’ banana (Musa × paradisiaca) by de-navelling and feeding nitrogen, potassium and sulphur through the distal stalk-end of the bunch
 
Creator KOTUR, S C
KESHAVA MURTHY, S V
 
Subject —
 
Description A field experiment was conducted during 2000–2002 to improve the bunch yield of banana (Musa ×paradisiaca L. AAA). The de-navelled distal stalk-end of the bunch of ‘Robusta’ banana was fed with ammonium sulphate (5–25 g/ plant) with or without potassium sulphate (2.5–12.5 g/plant) blended in 500 g of fresh cowdung soon after fruit set to enhance bunch weight. The results showed that the nutrients moved from the blend into the bunch and significantly enhanced the weight of the fruits as well as of the bunch progressively, compared to retention of flower, de-navelling (excision of flowerbud only) and application of 500 g cowdung only to the excised distal stalk end of the bunch. Denavelling caused 13.8% (20 143 g) higher bunch yield which increased to 18.6% (20 994 g) when cowdung alone was applied. When cowdung was blended with 15 g of ammonium sulphate and 7.5 g of sulphate of potash, the response was 41.5% (29 710 g) over the de-navelling and application of cowdung alone and 68.9 % over the retention of male bud throughout (17 697 g). A significantly higher N content, N uptake, Ndff (nitrogen derived from fertilizer), fertilizer N uptake, utilization of N fertilizer, K and S contents were observed when the cowdung enriched with ammonium sulphate and sulphate of potash was applied. Inclusion of sulphate of potash in the blend significantly increased the weight of the bunch and fruits, Ndff, uptake of fertilizer N, utilization of ammonium sulphate, K and S content in fruit and rachis. The Ndff and fertilizer nitrogen utilization values were substantially higher for fruit (3.99–5.22 and 19.33–92.32% respectively) than for rachis (1.48–2.10 and 0.27–1.44%). The results showed that an application of 15 g of ammonium sulphate and 7.5 g of sulphate of potash in 500 g of fresh cowdung to distal stalk-end of the bunch of ‘Robusta’ banana was the most promising to boost its yield without affecting the fruit quality
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2011-01-05
 
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/2628
 
Source The Indian Journal of Agricultural Sciences; Vol 78, No 2 (2008)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/2628/745
 
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