Farm Machinery and Equipment - I .. This PPT explains about the cultivator and pudddling equipment

1. Cultivators and
Puddlers
Presented by
S.V.Yuvaraj Dath -
193001171065

2. Cultivator
 A Cultivator is a machine that disturbs the top
surface of the soil to either prepare the soil into a
smooth, loose, aerated seedbed, and/or to kill
weeds.
Cultivator is an implement for inter cultivation
with laterally adjustable tines or discs to work
between crop rows. This can be used for seed bed
preparation and for sowing with seeding
attachment. The times may have provision for
vertical adjustments also.

3. Types of Cultivators
 Animal drawn
 Semi Mounted
 Mounted

4. Functions of a Cultivator
 Destroy the weeds in the field.
 Aerate the soil for proper growth of crops.
 Conserve moisture by preparing mulch on the
surface.
 To sow seeds when it is provided with sowing
attachments.
 To prevent surface evaporation and encourage
rapid infiltration of rain water into the soil.

5. Components of a Cultivator

6. Puddling
Puddling is an important operation of wetland rice cultivation
which facilitates transplanting, weed control and reduces
percolation loss of water and nutrients.
It is a tillage system in which soil is repeatedly ploughed and
harrowed under submerged conditions

7. Puddling Equipment
o Various tillage implements are used for puddling to make soil
impenetrable by manipulating and compacting it in standing
water.
o The implements required for puddling are the ones which
readily penetrate the puddle layer, carry organic material
downward and compact and smear to depth
o Some equipments used are Rotary Tillers and Power Tillers.

8. Benefits of Puddling
o Increasing its water holding capacity due to increase in micro
porosity of soil.
o Makes manual transplanting easier by reducing shear
strength of soil.
o Reduction in air filled pore volume by replacing water.
o Increase in moisture suction.
o Better weed control due to lack of oxygen and shift in weed
flora.
o Improves soil fertility and productivity of the soil.
o The highest yield is generally reported from wetland
cultivation.

9. Disadvantages of Puddling
 Excessive water use
 Low traffic ability
 Difficulty of regenerating soil structure for the dry land crop
following wetland rice
 High water requirement
 Can cause water logging
 Destroys soil aggregates, breaks capillary pores, disperses
fine clay particles and lowers soil strength in the puddled layer.

10. Rotary Tillers
 It is generally tractor operated
 The tractor equipped with cage wheels is used most commonly
for puddling purpose
 It consists of a power driven shaft ,on which knives or tines of
different shapes or sizes are mounted.
 It cuts the soil and spreading it uniformly to level the field, It is
used for both dry and wet land preparation

12. Power Tillers
 The wheels of the power tiller are replaced with cage wheels
 The tynes are useful in puddling operation as in the case of
rotavator

13. Thank You