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Land Preparation By JF Rickman and Tom P. Clemeno Ag. Engineering & Experiment Station IRRI Rice Production Course.

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Presentation on theme: "Land Preparation By JF Rickman and Tom P. Clemeno Ag. Engineering & Experiment Station IRRI Rice Production Course."— Presentation transcript:

1 Land Preparation By JF Rickman and Tom P. Clemeno Ag. Engineering & Experiment Station IRRI Rice Production Course

2 IRRI: Rice Production Course Learning Objectives Clarify the need for plowing Describe primary tillage and its implementation Describe secondary tillage and its implementation Clarify the need for puddling Present different plowing patterns

3 IRRI: Rice Production Course Can anyone explain the use of plowing?

4 IRRI: Rice Production Course Why plow? Create seedbed Kill weeds/pest Incorporate fertilizer Water control (in/out) Change clod size Incorporate residues

5 IRRI: Rice Production Course Fallow Field (Starting Point)

6 IRRI: Rice Production Course What is primary tillage and what should be achieved?

7 IRRI: Rice Production Course Primary Tillage First working after harvest Most aggressive Cuts and shatters soil Burying crop residues Highest power requirement Leaves rough surface Done either wet or dry

8 IRRI: Rice Production Course Primary tillage operations

9 IRRI: Rice Production Course Field after first plowing

10 IRRI: Rice Production Course Primary Tillage Implements Moldboard and Disc Plow

11 IRRI: Rice Production Course Primary Tillage Implements Offset and Chisel plow

12 IRRI: Rice Production Course Primary Tillage Implements Rotovator

13 IRRI: Rice Production Course What is secondary tillage and what is to be achieved ?

14 IRRI: Rice Production Course Secondary tillage Follow primary tillage Normally shallower working depth Provide additional soil pulverization/puddling Level soil surface Control weeds

15 IRRI: Rice Production Course Secondary tillage operations

16 IRRI: Rice Production Course After secondary working

17 IRRI: Rice Production Course Secondary Tillage Implements Tandem Disc

18 IRRI: Rice Production Course Secondary Tillage Implements Tine cultivator

19 IRRI: Rice Production Course After final dry working

20 IRRI: Rice Production Course Zero tilled field-chemical tillage

21 IRRI: Rice Production Course Can anyone explain “puddling”? Why do farmers puddle the soil?

22 IRRI: Rice Production Course Puddling Create hard pan to reduce deep water percolation Kill emerging weeds prior to planting Level fields Softens soil for transplanting

23 IRRI: Rice Production Course Puddling using 4wd tractor

24 IRRI: Rice Production Course Puddling using a Hydro tiller

25 IRRI: Rice Production Course Puddled field prior to planting

26 IRRI: Rice Production Course Why do we use different plowing patterns?

27 IRRI: Rice Production Course Plowing patterns Determined by implement (one-way plow can only throws soil in one direction) Determined by desired field levelness-headland most level Determined by field shape-long narrow fields Determines efficiency (headland pattern most efficient)

28 Circuitous Plowing Patterns Starts at outside and leaves a furrow in the middle of field

29 Headland Pattern Starts at one end and leaves flat even field

30 Land Plow System Starts In middle and leaves a level field

31 IRRI: Rice Production Course Conclusion Poorly prepared fields will cause management problems through the following crop. Symptoms include: – Poor plant establishment – Excessive pest / weed burdens – Uneven crop growth and maturity – Poor water use efficiency  “You reap what you sow”

32 IRRI: Rice Production Course Questions or Comments?


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