Krishi Vigyan Kendra, Nalanda
Bihar Agricultural University, Sabour, Bhagalpur

Achievements on technologies assessed and refined  ON FARM TRIAL (2015-16)

 

 

ON FARM TRIAL (2015-16)

OFT-1                                                                                                           

1.

Title of On farm Trial

Effect of Boron on yield of rice under rice wheat cropping system

2.

Problem diagnose

The low yield of rice mostly affected due to micronutrient deficiency

3.

Details of technologies selected for assessment/refinement

Technology options:

 

 

Farmers Practice(N:P:K::120:30:00 kg/ha)

T.O-1

Recommended Practices (N:P:K::120:60:40 kg/ha)

 T.O-2

 

 T.O-3

Recommended Practices + 16 Kg Borax/ha)

 

Recommended Practices + 16 kg Borax /ha+ 5tonn

FYM/ha

4.

Source of Technology

Rajendra Agricultural University, Pusa, Samastipur,

5.

Production system and thematic area

Rice-Wheat cropping system

6.

Performance of the Technology with performance indicators

 

 

Technical Indicator

  1. No. of  tillers/hill
  2. No. of  effective tillers/hill                                   
  3. No. of grains/panicle
  4. Cost benefit Ration (B:C)
  5. Yield q/ha
  6. Available NPK & B in pre & Post harvest soil

 

Economic indicator

  1. Cost of intervention
  2. Net return
  3. Cost –benefit Ratio

7.

Final recommendation for micro level situation

The application of Boron along with recommended practices +16 kg Boron + 5 tonne FYM /ha, yield of rice increased

8.

Constraints identified and feedback for research

-

9.

Process of farmers participation and their reaction

Farmers shows more enthusiastic to adopt this technology .

Thematic area: Integrated  nutrient management

Problem definition:  The low yield of rice mostly due to micronutrient deficiency

Technology assessed: Effect of Boron on yield of rice under rice wheat cropping system

Table: - Initial properties of soil.

PH

O. C.

(%)

Available nutrients (kg/ha)

Available Boron (mg/kg)

N

P2O5

K2O

Boron

7.20

0.566

251.6

27.30

160.5

0.441

Table: - Effect of Boron on post harvest soil properties under rice wheat cropping system

Technology Option

PH

O. C.

(%)

Available nutrients (kg/ha)

Available Boron (mg/kg)

 

N

P2O5

K2O

Boron

Farmers Practice(N:P:K::120:30:00 kg/ha)

7.22

0.563

254

27.13

159.6

0.439

T.O-1.Recommended Practices (N:P:K::120:60:40 kg/ha)

7.21

0.566

260

28.40

165.9

0.402

T.O-2.Recommended Practices + 16 Kg Borax/ha)

7.20

0.567

262

28.65

167.9

0.465

T.O-3Recommended Practices + 16 kg Borax /ha+ 5tonn FYM/ha

7.18

0.571

266

29.28

171.0

0.473

SE m

C.D (P=0.05)

0.02

NS

0.002

0.006

2.25

6.78

0.58

NS

2.65

7.96

0.008

0.024

 

Result:  The highest yield was recorded in T.O-3 receiving  Recommended Practices + 16 kg Borax /ha+ 5tonn FYM/ha, with  50.8 Q/ha & also B:C ratio was maximum i.e 2.59

 

OFT-2

1.

Title of On farm Trial

To assess the methods of Boron application on the productivity of Mustard

2.

Problem diagnose

Mustard is the most important oilseed crop in this area. The average yield of mustard is very low. The low yield of mustard due to no use of micronutrient fertilizer

3.

Details of technologies selected for assessment/refinement

Technology options:

 

Farmer’s Practices(N:P:K:: 90:40:20 kg/ha)

T.O. -1

Farmer’s practices (N:P:K:: 90:40:20 kg/ha.)

+16 kg Borax/ha during land preparation

T.O. -2

Farmer’s practices (N:P:K:: 90:40:20 kg/ha.)

+0.5% boron as foliar spray twice at 25-30DAS

 & 45-50DAS.

4.

Source of Technology

R.A.U., Pusa

5.

Production system and thematic area

Rice- Mustard- Mung & Soil Fertility Management,

6.

Performance of the Technology with performance indicators

 

 

Technical Indicator

  1. No. of  tillers/plant
  2. No. of  siliqua/plant                           
  3. No. of grains/siliqua
  4. Test weigt (1000 grains)
  5. Yield q/ha
  6. Available NPK & B in pre & Post harvest soil

 

Economic indicator

  1. Cost of intervention
  2. Net return
  3. Cost –benefit Ratio

7.

Final recommendation for micro level situation

The application of Boron along with Farmer’s practices (N:P:K:: 90:40:20 kg/ha.)+0.5% boron as foliar spray twice at 25-30DAS & 45-50DAS.

8.

Constraints identified and feedback for research

-

9.

Process of farmers participation and their reaction

Farmers are easily adopting  this technology .

Thematic area: Integrated  nutrient management

Problem definition:  The low yield of mustard due to no use of micronutrient fertilizer

Technology assessed: To assess the methods of Boron application on the productivity of Mustard

Table: - Initial properties of soil.

PH

O. C.

(%)

Available nutrients (kg/ha)

Available Boron (mg/kg)

N

P2O5

K2O

Boron

7.28

0.536

245.0

28.15

167.3

0.498

Table: -Effect of methods of Boron application on post harvest soil properties

Technology Option

PH

O. C.

(%)

Available nutrients (kg/ha)

Available Boron (mg/kg)

 

N

P2O5

K2O

Boron

Farmer’s Practices(N:P:K:: 90:40:20 kg/ha)

7.29

0.539

247

27.40

169.0

0.495

T.O-1 (Farmer’s practices (N:P:K:: 90:40:20 kg/ha.)

+16 kg Borax/ha during land preparation)

7.29

0.544

253

29.17

174.5

0.515

T.O-2 (Farmer’s practices (N:P:K:: 90:40:20 kg/ha.)

+0.5% boron as foliar spray twice at 25-30DAS & 45-50DAS.)

7.28

0.546

254

29.50

175.8

0.503

 

         

 

SE m

C.D (P=0.05)

0.02

NS

0.002

0.006

1.52

4.56

0.62

NS

2.4

NS

0.006

0.018

 

 

Result:  The highest yield 15.2 q/ha was recorded in T.O (Farmer’s practices (N:P:K:: 90:40:20 kg/ha.) +0.5% boron as foliar spray twice at 25 30DAS) and B:C ratio 4.19 & 45-50DAS.

 

OFT-3

 

1.

Title of On farm Trial

To assess the effect of Boron and Zinc on yield & quality of Brinjal

2.

Problem diagnose

Brinjal is the most important vegetable crop in this area. Low yield & quality of brinjal was observed due to improper use of micronutrient fertilizer (Boron & Zinc)

3.

Details of technologies selected for assessment/refinement

Technology options:

 

Farmer’s Practices(N:P:K:: 120:80:80 kg/ha)

T.O. -1

Farmer’s practices+5 kg Zn+ 1 Kg Boron/ha as

basal

T.O. -2

 

T.O -3

Farmer’s practices+10 kg Zn+ 1 Kg Boron/ha as

Basal

Farmer’s practices+5 kg Zn+ 2 Kg Boron/ha as

basal

4.

Source of Technology

B.A.U., Sabour

5.

Production system and thematic area

Rice- Brinjal- Mung & Soil Fertility Management,

6.

Performance of the Technology with performance indicators

 

 

Technical Indicator

  1. No. of  tillers/hill
  2. No. of  branch/plant                                 
  3. No. of fruits/plant
  4. Average wt of fruits (10 fruits wt)
  5. Yield q/ha
  6. Available NPK & B in pre & Post harvest soil

 

Economic indicator

  1. Cost of intervention
  2. Net return
  3. Cost –benefit Ratio

7.

Final recommendation for micro level situation

-

8.

Constraints identified and feedback for research

-

9.

Process of farmers participation and their reaction

-

Thematic area: Integrated  nutrient management

Problem definition:  Low yield & quality of Brinjal was observed due to improper use of micronutrient fertilizer (Boron & Zinc)

Technology assessed: To assess the effect of Boron and Zinc on yield & quality of Brinjal

Table: - Initial properties of soil.

PH

O. C.

(%)

Available nutrients (kg/ha)

Available Nutrients (mg/kg)

N

P2O5

K2O

Zinc

Boron

7.08

0.603

256.0

30.62

172.6

0.712

0.428

OFT-4

1. Title

:

To assess the effect of nutrient management on yield of lentil.

2.Problem diagnose

:

Lentil is the most important pulse crop in this area. The average yield of lentil is very low .The low grain yield of lentil mostly affected due to imbalance use of chemical fertilizers

3.Detail of technologies selected for assessment/refinement

:

 

Farmers Practice(N:P:K::10:30:00 kg/ha)

 

T.O. 1

Recommended Practices (N:P:K::20:40:00kg/ha+Rhizobium

 culture)

T.O. 2

T.O. 3

Recommended Practices + 20 Kg K2O/ha)

Recommended Practices + 20 kg K2O /ha+20kg Sulphur/ha

4.Source of technology

:

Rajendra Agriculture University, Pusa, Samastipur, Bihar

5.Production system and thematic area

:

Rice-Lentil and Soil Fertility Management

6.Performance of the technology with performance indicators:

:

  1. No. of  plant per square meter
  2. No. of  branch per plant                                       
  3. No. of pots per plant
  4. Test weight (1000 - grain weight)
  5. Yield q/ha

7.Final recommendation for micro level situation

:

Recommended Practices+ 20Kg K2O/ha +20kg Sulphur was found most effective

8.Constaints indentified and feedback for research

:

 Soils are deficient in sulphur

9.Process of farmers participation and their reaction

:

Widely accepted by farmers due to yield increases

B. TECHNOLOGY ASSESSMENT AND REFINMENT IN DETAIL:

Problem definition: - Low yield and profitability of lentil due to imbalance nutrient application

Technology assessed or refined (as the case may be): To assess the effect of nutrient management on yield of lentil

 

 

Table: - Initial properties of soil.

pH

Organic Carbon

(%)

Available nutrients (kg/ha)

Available Sulphur(mg/kg)

N

P2O5

K2O

Sulphur

7.22

0.549

225

26.57

156.4

9.36

 

 

Table:Effect of nutrient management on Soil Properties (Post harvest soil).

Technology option

pH

Organic Carbon    (%)

Available nutrients (kg/ha)

Available Sulphur(mg/kg)

N

P2O5

K2O

Farmers Practice

(N:P:K::10:30:00 kg/ha)

7.24

0.546

255

26.44

169.3

9.43

T.O. 1 Recommended Practices

 (N:P:K::20:40:00kg/ha+Rhizobium culture)

7.23

0.555

259

27.71

170.3

9.52

 T.O.2  Recommended Practices+ 20 Kg K2O/ha)

7.23

0.559

261

28.31

176.2

10.05

T.O. 3 Recommended Practices+ 20Kg K2O/ha +20kg Sulphur

7.20

0.562

263

28.63

177.8

11.26

SEm

C.D. (P=0.05)

0.01

0.03

0.003

0.010

2.16

6.49

0.71

2.13

2.42

7.26

0.24

0.75

 

Result: Highest yield was recorded 15.37q/ha in T.O-3 i.e. Recommended Practices + 20 kg/ha+20kg Sulphur in comparison to farmers practices & in recommended practices, the B:C ratio was also highest 4.01.

 

OFT-5

1.

Title of On farm Trial

Assessment of different weedicide against weeds in lentil crop

2.

Problem diagnose

Lentil is the most important pulse crop of this area. Low yield of lentil was observed due to improper method of weed control & no use of selective weedicide against control of monocot & dicot weeds

3.

Details of technologies selected for assessment/refinement

 

Farmers Practice(No weeding & Hand weeding at

35-40DAS)

 

T.O- 1

Pendimethylin @ 1.0 l/ha a.i as pre-emergence

T.O- 2

     

Quanzilofop butyl @40gm/ ha  a.i at  15 DAS as

       post emergence

4.

Source of Technology

  B.A.U., Sabour, bhagalpur

5.

Production system and thematic area

Rice-wheat/lentil/gram, Weed management

6.

Performance of the Technology with performance indicators

 

Technical Indicator

  1. No. of pods /plant
  2. No. of branches/plant                                           
  3. No. of Weed/m2 at 20 & 40 DAS
  4. Test wt. (gram)
  5. Grain yield/ha.

Economic indicator

  1. Cost of intervention
  2. Net return
  3. Cost –benefit Ratio

7.

Final recommendation for micro level situation

 The technology is very much useful for  increasing yield of lentil under weed infested plot

8.

Constraints identified and feedback for research

 

Use of selective weedicide in lentil was found promising in  controlling weed

9.

Process of farmers participation and their reaction

Farmers shows more ethusiatic to adopt this technology .

Thematic area: Integrated weed management

Problem definition:Low yield of lentil was observed due to improper method of weed control.

Technology assessed:Assessment of different weedicide against weeds in lentil crop

Fertility Status

                                       Initial Soil Status

                                            Final Soil Status

pH

O.C.

 ( %)

Available nutrients (Kg/ha)

pH

O.C.

( %)

     Available nutrients (Kg/ha)

N

P2O5

K2O

N

P2O5

K2O

7.16

0.580

284.0

25.78

181.2

7.14

0.623

292.2

26.30

182.4

Result:Application of Pendimethylin @ 1.0 l/ha a.i as pre emergence ( T.O-1) was found best suitable for controlling weeds in lentil and gave highest yield 12.10q/ha along with higher B:C ratio 3.37 in comparison to farmer practice & T.O-2.

 

OFT-6

1.

Title of On farm Trial

Evaluation of different herbicides for controlling of weeds in transplanted rice

2.

Problem diagnose

Paddy is the major food grain crop of Nalanda district during kharif season. Most of the farmers are adopting practice to cultivate rice by transplanted method. In this method farmers are transplanting young seedlings of rice in puddle condition. Low yield of paddy was observed due to untimely method of weed control i.e hand weeding at 20 & 40 DAT due to shortage of labour during peak period, handweeding shoud not be properly done. Use of Pre & Post emergence chemical method of weed control with one hand weeding will be  best method for proper management of weeds in rice

3.

Details of technologies selected for assessment/refinement

F.P-

T.O-1

 

T.O-2

Two hand weeding at 20 & 40 DAT

Pretilachlor 50 EC @ 1.5litre/ha (within 2-3 DAT

+ 1 hand weeding at 30-35 DAT)

 Bispyribac sodium 10% @ 250g/ha (10-15 DAT

+one handweeding at 40-45 DAT)

 

 

4.

Source of Technology

B.A.U., Sabour, Bhagalpur

5.

Production system and thematic area

Rice Wheat Cropping system, IWM

6.

Performance of the Technology with performance indicators

 

Technical Indicator

  1. No. of  tillers/hill
  2. No. of  effective tillers/hill                             
  3. No. of grains/panicle
  4. No. of Weeds/m2

5) Yield (Q/ha)

Economic  indicator

  1. Cost of intervention
  2. Net return
  3. Cost –benefit Ratio

7.

Final recommendation for micro level situation

Use of Pretilachlor 50 EC @ 1.5litre/ha (within 2-3 DAT

+ 1 hand weeding at 30-35 DAT) is the best method of weed control of transplanted paddy

 

8.

Constraints identified and feedback for research

Most of farmer demanding granular form of pretilachlor weedicide for easy broadcasting in paddy field. At present pretilachlor is available in market in liquid form and farmers are using pretilachlor by mixing with sand

9.

Process of farmers participation and their reaction

Most of farmers were satisfied with the performance of weedicide in paddy and enthustiac about next year application

Thematic area: IWM

Problem definition:Low yield of paddy was observed due to untimely method of weed control i.e handweeding at 20 & 40 DAT due to shortage of labour during peak period, handweeding shoud not be properly done

Technology assessed:Use of Pre & Post emergence chemical method of weed control with one hand weeding will be  best method for proper management of weeds in rice

Table: - Initial properties of soil.

PH

O. C.

(%)

Available nutrients (kg/ha)

N

P2O5

K2O

7.10

0.575

255.7

25.30

163.8

Table:

Technology option

No. of trials

Yield

(q/ha)

Cost of cultivation

(Rs./ha)

Gross return (Rs/ha)

Net return

(Rs./ha)

BC ratio

 
 

F.P- Two hand weeding at 20 & 40 DAT

10

34.60

32,800

52,650

19,850

1.60

 

T.O-1 Pretilachlor 50 EC @ 1.5litre/ha (within 2-3 DAT+ 1 hand weeding at 30-35 DAT)

43.20

30,500

64,950

34,450

2.12

 

T.O-2 Bispyribac sodium 10% @ 250g/ha (10-15 DAT +one handweeding at 40-45 DAT)

37.80

29,600

57,240

27,640

1.93

 

SE m

C.D. (P=0.05)

 

2.43

7.20

-

-

-

-

 

Result:  Use of Pretilachlor 50 EC @ 1.5litre/ha (within 2-3 DAT+ 1 hand weeding at 30-35 DAT) was given highest yield 43.20 Q/ha & (2.12 )highest B:C ratio (T.O-1) in comparison to F.P & T.O-2.