0761- Sri Lankan farmer-based research presentation on SRI

Farmer-Based Research

Season 2007 YALA Variety BG-300Duration 3.5 months

Location at Warakapola

Famer: W.K. SENARATHNA

METHODS:1 SRI2 Direct seeding3 Normal broadcasting4 Normal transplanting

PLOT STRUCTURE FOR STUDY

Plot 1st row T1 2nd row T2 3rd row T3

1 Direct Seeding Normal Broadcasting SRI

2 SRI Normal Transplanting Direct Seeding

3 Normal Broadcasting Direct Seeding Normal Transplanting

4 Normal Transplanting SRI Normal Broadcasting

GROWTH: ROOTS

Growth rates were measured three times with the below results:

1st counting @ 4 WEEKS (length cm)

2nd counting @ 6 WEEKS

(length cm)

3rd counting @ 8 WEEKS(length cm)

SRI 18.75 21.25 27

Direct Seeding 15 18.75 28

Normal Transplanting 10 23.75 26

Normal Broadcasting 8.75 18.75 21

GROWTH: ROOTS

GROWTH: PLANT HEIGHT

1st counting @ 4 WEEKS (length cm)

2nd counting @ 6 WEEKS(length cm)

3rd counting @ 8 WEEKS(length cm)

SRI 42.5 54 65

Direct Seeding 32.5 58 80Normal

Transplanting 22.5 50 64

Normal Broadcasting 32.5 58 69

GROWTH: PLANT HEIGHT

0

10

20

30

40

50

60

70

80

90

4 WEEK 6 WEEK 8 WEEK

SRI

RS

NT

NBC

GROWTH: TILLERS PER PLANT

1st counting @ 4 WEEKS (length cm)

2nd counting @ 6 WEEKS(length cm)

3rd counting @ 8 WEEKS(length cm)

SRI 2 5 12

Direct Seeding 2 3 8Normal

Transplanting 2 8 6

Normal Broadcasting 2 2 2

GROWTH: TILLERS PER PLANT

0

2

4

6

8

10

12

14

4 WEEK 6 WEEK 8 WEEK

SRI

RS

NT

NBC

SEEDS PER PANICLE

SRI NUMBER OF

PANICLES   TOTAL- ALL 3AVERAGE PER

PANICLE

LONG 3 690 230

MEDIUM 3 405 135

SHORT 3 302 101

 Total Seeds per panicle     466

 Overall average - SRI     155

DIRECT SEEDING      

LONG 3 535 178

MEDIUM 3 222 74

SHORT 3 166 55

  Total Seeds per panicle     307

 Overall average – Direct Seeding     102

SEEDS PER PANICLE

NORMAL TRANSPLANTINGNUMBER OF PANICLES   TOTAL- ALL 3

AVERAGE PER

PANICLE

LONG 3 386 129

MEDIUM 3 307 102

SHORT 3 282 94

  Total Seeds per panicle     325

 Overall average – Normal Transplanting     108

NORMAL BROADCASTING      

LONG 3 441 147

MEDIUM 3 283 94

SHORT 3 113 38

Total Seeds per panicle     279

 Overall average – Normal Broadcasting     93

SEEDS PER PANICLE: SUMMARY

FINAL (Average number of seeds per panicle)

SRI 155

DS 102

NT 108

NBC 93

SUCCESSFUL TILLERS WITH GRAIN

  Panicles per m2  

SRI 260  

DS 258  

NT 319  

NBC 363  

SUCCESSFUL TILLERS WITH GRAIN

0

50

100

150

200

250

300

350

400

pin: per sq m:

SRI

RS

NT

NBC

HARVEST PER SQ METER PER gm

0100

200300

400500

600700

800

1

NBC

NT

RS

SRI

HARVEST PER SQUARE METRE (GRAMS)

VARIATIONS IN HARVESTS BETWEEN DIFFERENT PLOTS (GRAMS PER SQUARE METRE) -- NORMAL BROADCASTING

400

420

440

460

480

500

520

540

1

NBC 1

NBC 2

NBC 3,

VARIATIONS IN HARVESTS BETWEEN DIFFERENT PLOTS (GRAMS PER SQUARE METRE) –

NORMAL TRANSPLANTING

570

580

590

600

610

620

630

1

NT 1

NT 2

NT 3

VARIATIONS IN HARVESTS BETWEEN DIFFERENT PLOTS (GRAMS PER SQUARE METRE) – DIRECT SEEDING

540

560

580

600

620

640

660

680

1

RS1

RS2

RS3

VARIATIONS IN HARVESTS BETWEEN DIFFERENT

PLOTS (GRAMS PER SQUARE METRE) – SRI

0

100

200

300

400

500

600

700

800

900

1

SRI1

SRI2

SRI3

VARIATIONS IN HARVESTS BETWEEN DIFFERENT PLOTS (KILOGRAMS PER 5 SQUARE METRES)

NBC

NT

RS

SRI

0

5

10

15

20

25

1

To

tal

kgs

Thank you