Friday, November 30, 2012
Thursday, November 29, 2012
Dried Cow dung patties used as a fuel and manure by poor
Dried cow-dung ready for use |
“Dried Cow dung patties used
as a fuel and manure by poor” said by T.Vanitha, coordinator of a Trichy based
NGO, SEVAI while addressing in a seminar on eco-friendly energy applications
recently in Trichy. T.Vanitha further said that several members of SHGs of
SEVAI have undertaken drying of cow dung and marketing as a decent income
generation activity in Rural Trichy District. T.Vanitha added, “Cow dung
patties made by SEVAI self help village women groups are used as a fuel while
cooking when wood is scarce. Cow dung is dried and shaped into patties which
are then burnt to produce heat. In
many parts of Tamilnadu, caked and dried cow dung is used as fuel. Dung may
also be collected and used to produce biogas to generate heat. One of the
wonderful things about cow dung is that it is dried and used as fuel for
cooking. Cows eat a variety of leaves, grass, grains, and so on, and chew
everything thoroughly hence, their gober is composed of many combustible
fibers. The cowherd men and women knead the gober into melon-size balls and
stick them on the wall to dry in the sun. In good weather they dry in 3-4 days
and are then collected and stored near the kitchen to provide fuel for cooking. Cow manure is an excellent alternative to
chemical-based fertilizers and is used in food crops and vegetable gardens. Cow
dung is the undigested residue of plant matter which has passed through the
animal's gut. Cow dung, usually combined with soiled bedding and urine, is
often used; cow dung can dry out and remain on the pasture, creating an area of
grazing land which is unpalatable to livestock. Fresh manures from cattle and
other ruminant animals, goats and sheep amongst the most common, contain
cellulose decomposing bacteria along with active digestive enzymes. These
enzymes contribute to faster heating of the manure which accelerates the
decomposition of organic materials by the soil microorganisms. The end result
of better decomposition of organic material is faster nutrient release to the plant.
While cow manure is excellent for growing vegetables it is not recommended to
use fresh manure directly on the growing area because they will burn tender
plant roots. It should instead be either, applied to an area for future use as
sheet compost, dug into the garden and allowed to age for at least 30 days and
composted in a conventional compost heap. Many women SEVAI Self Help Group members as gardeners
find that dried cow manure is better than fresh manure for several reasons as
it's easier to apply dried manure since all they have to do is spread it and
the manure that is no longer sticky also produces less odor”. -Govin
Wednesday, November 28, 2012
Pettavaithlai sugar factory Effluent discharged water in irrigation channel is the pain in neck of farmers of the neighbourhoods.
The blackish effluent discharged water stagnated in canal |
effluent water discharge- undernourished banana cultivation- |
Monday, November 26, 2012
Bamboo is poor friendly plant for shelter construction.
Bamboo plantation in SEVAI |
“Bamboo is poor friendly plant for shelter construction”
enlightened by Malathi of Vedarajapuram.In Vedajapuram village near Sirkali, in
SEVAI Centre, Bamboo is grown for years as it is eco friendly and has utility
value in construction of dwellings. Malathi, the garden keeper of the SEVAI
centre mentions, “Bamboo is one of the fastest-growing plants depending on
local soil and climatic conditions, primarily growing in regions of warmer. Unlike
trees, individual bamboo stems emerge from the ground at their full diameter
and grow to their full height of three to four months. During these several
months, each new shoot grows vertically with no branching out until the
majority of the mature height is reached. Then, the branches extend from the
nodes and leafing out occurs. In the next year, the pulpy wall of each Culm
slowly hardens. During the third year, the culm hardens further. The shoot is
now considered a fully mature culm. Over the next 2–5 years fungus begins to
form on the outside of the culm, which eventually penetrate and overcome the
culm. This brief life means culms are ready for harvest and suitable for use in
construction within about three to seven years. Individual bamboo culms do not
get any taller or larger in diameter in subsequent years than they do in their
first year, and they do not replace any growth lost from pruning or natural
breakage. Bamboos have a wide range of hardiness depending on species and
locale. Small or young specimens of an individual species will produce small
culms initially. As the clump and its rhizome system mature, taller and larger
culms will be produced each year until the plant approaches its particular
species limits of height and diameter. Timber is harvested from cultivated and
wild stands and some of the larger bamboos. In its natural form, bamboo as a
construction material is traditionally associated with the cultures. Bamboo has
also long been used as scaffolding for buildings, bamboo is used primarily as a
supplemental and/or decorative element in buildings such as fencing, fountains,
grates and gutters, largely due to the ready abundance of quality timber. Bamboo
can be cut and laminated into sheets and planks. This process involves cutting
stalks into thin strips, planning them flat, boiling and drying the strips;
they are then glued, pressed and finished. Bamboo intended for use in
construction should be treated to resist insects and rot. Several institutes,
businesses, and universities are researching the use of bamboo as an ecological
construction material. In parts of India, bamboo is used for drying clothes
indoors, both as a rod high up near the ceiling to hang clothes on, and as a
stick wielded with acquired expert skill to hoist, spread, and to take down the
clothes when dry. It is also commonly used to make ladders, which apart from
their normal function. Furthermore, bamboo is also used to create flagpoles”. -Govin
“Significant intellectual processes are emerging during Adolescence
An adolescent learner |
Significant intellectual processes are emerging during
Adolescence” mentioned by Chitra Balasubramanian Principal of SEVAI Shanthi Matriculation
Higher Secondary school in a school seminar conducted for school teachers on “Educating Adolescent
girls” recently. Chitra further said, “Young adolescents go through tremendous
brain growth and development.
Understanding" means, in the most literal sense of the word, to stand
under another, that is, to bear his burden and take his place, to share his
point of view. To understand the adolescent mind, we have to become perfectly
aware of the way it conceives itself and reality, so as to share
completely its point of view. Adolescence is a critical time for brain growth. Significant
intellectual processes are emerging. Adolescents are moving from concrete to
abstract thinking and to the beginnings of the active monitoring and regulation
of thinking processes. They are developing skills in deductive reasoning,
problem solving, and generalizing. This period of brain growth marks the
beginning of a person's ability to do problem solving, think critically, plan,
and control impulses. Some of these changes manifest themselves in behaviors
that are observable and stereotypical of middle school students. Taken in
concert with the other major development issues at this age, brain development
reinforces the typical adolescent behaviors such as Engaging in strong, intense
interests; often short lived; Preferring interactions with their peers;
Preferring active to passive learning. As with other developmental changes,
students reach the "starting point" of this brain growth cycle at
different times and progress through it at different rates. Some students will
be ready for problem-solving activities, while others may still be working at
their best when dealing with concrete information. Given these facts and the
fact that students learn in different ways and respond to different stimuli,
the direction is clear: The school classroom should be an active, stimulating
place where people talk and share, movement is common and planned for, and the
teacher uses a wide array of approaches to introduce, model, and reinforce learning.
-Govin
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