Record Details

MODIFICATION AND PERFORMANCE EVALUATION OF ANGRAU POWER WEEDER DEVELOPED BY FIM SCHEME FOR PADDY UNDER SRI CULTIVATION

KrishiKosh

View Archive Info
 
 
Field Value
 
Title MODIFICATION AND PERFORMANCE EVALUATION OF ANGRAU POWER WEEDER DEVELOPED BY FIM SCHEME FOR PADDY UNDER SRI CULTIVATION
 
Creator SRAVAN KUMAR, CH
 
Contributor HARI BABU, B
 
Subject weeds, costs, land resources, rice, biological phenomena, planting, manpower, tillage equipment, field capacity, grain
 
Description Rice (Oryza sativa) is one of the most important staple food crops in many
Asian countries. More than 90 % of rice is produced and consumed in Asian
countries. In India it is grown in an area of 45.35 M ha with a production of
99.15 Mt and in Andhra Pradesh rice is grown in an area of 4.38 M ha with a
production of 14.21 Mt. India made remarkable progress in increasing food grain
production from 1950’s. During this period, it increased paddy production by 4.5
times and area 42%. This is a remarkable achievement, but for the last decade or
so, the production levels are stagnant. The demand for rice is growing, while the
cost of irrigation is rapidly increasing, and adequate area to grow rice is
unavailable. Therefore, India is facing a major challenge to increase rice
production, the main food grain.
Rice production need to increase dramatically in the next decades to meet
the demands of a growing population. This increase must be accomplished with
less land per capita, smaller, and less reliable water supplies, less degradation of
the environment, and less drain on the resources of smallholder farmers, who
constitute the majority of the world’s poor. Finding local solutions to food
production is essential to eliminating hunger and providing insurance against
rising food prices.
The System of Rice Intensification (SRI) is the best current example of
options available to farmers and nations to promote community-led agricultural
growth, while managing soil and water resources more sustainably and even
enhancing their future productive capacity. SRI is a set of alternative crop
management practices, developed in the 1980s in Madagascar to benefit farmers
with small. SRI increases the productivity of resources used in rice cultivation,
reducing requirements for water, seed, synthetic fertilizers, pesticides, herbicides
and often labour especially tasks performed.
Absence of standing water provides a congenial environment for weeds to
proliferate in SRI. Since the weeds grow more rapidly and abundantly in SRI due
to intermittent wetting and drying, it is important to manage the weeds regularly.
If proper weed control measures are not taken up then crop productivity
decreases. The field capacity of the present availabel weeders viz Cono weeder,
Mandava weeder, Single or double wheel weeder, Kollur weeder weeders are
less, which involves drudgery while operating more time in puddle field
because of, to and fro motion of the weeders. An operator has to travel more
distance to carry out weeding operation in an acre by manual cono weeder which
is labouries, time consuming and increase input cost.
Keeping all the factors in view, Acharya N.G. Ranga Agricultural
University Farm Implements and Machinery scheme (ANGRAU FIM) develop a
motorized weeder for weeding operation in paddy cultivation grown under SRI to
reduce drudgery. Though the effective field capacity and field efficiency of the
weeder is promising it has less working width accounting for less weeding
efficiency and a provision to prevent the weeder from bogging down in soil is not
provided. So an attempt was made to modify the existing power weeder at
College of Agricultural Engineering Bapatla.
The effective field capacity of the power weeder was found to be 0.0349
ha/h with field efficiency of 79.74%. In addition, the effective field capacity and
field efficiency of the cono weeder was found to be 0.0145 ha/h and 73.03%
respectively.
The weeding efficiency of the power weeder was observed to be 84.58%
and the weeding efficiency of the cono weeder was 68.97%. The plant damage of
the power weeder was found to be 3.61% and cono weeder it is 2.03%. The data
regarding plant damage and cono weeder obtained from the experiments were
subjected to T test. It was observed that there is a significance difference between
two weeding methods i.e. Cono weeder and Power weeder with respect to
weeding efficiency and Plant damage. Power weeder has a higher weeding
efficiency than cono weeder, and cono weeder has less plant damage than the
power weeder.
The cost of operation of the power weeder was observed to be Rs.1928/ha
with a fuel consumption of 0.6L/h. The cost of operation of the cono weeder was
found to be Rs. 1352/ha. Though the cost of operation of power weeder is more
than the cono weeder, subjects experienced more drudgery and physical strain
while operating cono weeder than power weeder.
 
Date 2016-06-07T14:24:16Z
2016-06-07T14:24:16Z
2011
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/66954
 
Language en
 
Relation D9082;
 
Format application/pdf
 
Publisher ACHARYA N. G. RANGA AGRICULTURAL UNIVERSITY