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Analysis of rainfall of the high rainfall tract of northern agro-climatic zone of Kerala

DSpice at Indian Institute of Spices Research

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Field Value
 
Creator KANDIANNAN, K
THANKAMANI, C K
MATHEW, P A
 
Date 2010-08-09T06:28:28Z
2010-08-09T06:28:28Z
2008
 
Identifier Journal of Spices and Aromatic Crops ,Vol. 17 (1) : 16-20 (2008)
http://hdl.handle.net/123456789/531
 
Description Analysis of rainfall of the high rainfall tract of northern agroclimatic zone of Kerala was carried out for 26 years (1980-2005) to schedule spice crop management practices precisely. The analysis indicated that the tract received 4461 mm of annual rainfall in 145 rainy days. South west monsoon (June to September) alone contributed 75% of annual rainfall and July was the rainiest month (1117 mm) with 27 rainy days. The length of growing period was
identified between 18th standard week to 47th standard week (from 30th April to 25th
November) with a mean rainfall of 4284.1 mm. The pre-monsoon period from 2n d April to 6th May (between 14th week to 18th
week) with a mean rainfall of 180.6 mrn was the right time for land preparation
for annual crops like ginger tZingiber officinale) and turmeric (Curcuma longa) and the period between 30th April to 27th
May (LS'" week to 215t week) with a mean rainfall of 244.4 mm was ideal for planting including first mulching and first schedule of fertilizer application for these crops. The probability of getting 50 mm rainfall per week was more than 60% during the 19th week (7th to 13th May). This is the time for prophylactic plant protection, application of first schedule of fertilizer application and shade regulation for black pepper (Piper nigrum) and tree spices. The second schedule of these operations has to be done during the 36th to 39th week (3rd to 30th September) as this period is relatively rainless (September rainfall was 349.6
mm). Though the tract receives high rainfall, there is moisture stress between December and March and adequate moisture conservation (or irrigation wherever possible) is essential particularly for perennial crops in juvenile stage.
 
Format 385111 bytes
application/pdf
 
Language en
 
Publisher Indian Society for Spices
 
Subject Agro-climatic zone
Kerala
Rainfall analysis
Spice crop management
 
Title Analysis of rainfall of the high rainfall tract of northern agro-climatic zone of Kerala
 
Type Article