Agriculture Reference
In-Depth Information
ber was severe from July to October and February to March with a peak
during first fortnight of September exhibiting a negative correlation with
maximum temperature, whilenonsignificant relationship with minimum
temperature, relative humidity and rainfall. Leaf miner was severe from
September to December with a peak during first fortnight of November.
Relative humidity and rainfall had positive correlation with leaf miner in-
cidence while maximum and minimum temperature had no significance.
Weevil population was severe from first fortnight of August to second fort-
night of October with a peak during first fortnight of September having
positive correlation only with rainfall (Rama Krishna Rao and Haribabu,
2003).
6.4 ADAPTATION AND MITIGATION STRATEGIES TO
MINIMIZE THE ADVERSE EFFECTS OF CLIMATE CHANGE
To circumvent losses due to climate change, adaptation and mitigation
strategies are essential in affected areas. Some of the adaptation strategies
include plant architecture, use of efficient technologies like drip irrigation,
soil and moisture conservations measures, fertilizer management through
fertigation, green manuring/intercropping, increase in input efficiency, pre
and postharvest management of economic produce can not only minimize
the losses but also increase the positive impacts of climate change. Mitiga-
tion is referred to the process in which the emissions of green house gases
are reduced or they are sequestered. Improved agronomic practices for
enhanced nutrient (nitrogen, inorganics and organics) use efficiency, wa-
ter use efficiency for reduction of CHGs and ecofriendly disease and pest
management strategies also form mitigation options.
Since climate change is projected to increase the frequency of extreme
events like droughts, heavy rainfall events, etc., it is important to have
proper soil and water conservation practices in place to minimize the ad-
verse effects of climate change. Cashew can tolerate mild to moderate lev-
els of moisture stress without affecting the growth of seedlings. Strong and
severe water stress resulted in 20 and 22% reduction in number of scions,
respectively (Shingre et al., 2003). Cashew experiences severe moisture
stress from January to May, adversely affects its flowering and fruit set. In
order to harvest the rainwater and to make it available to the cashew plant
during critical period,
in situ
soil andwater conservation techniques are
