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Krishi Vigyan Kendra (KVK), Madurai District  

On Farm Trail 2010-2011

Crop/ enterprise

Title of OFT

No. of
trials

Technology  Assessed

Parameters of assessment

Data on the parameter

Results of assessment

Feedback from the farmer

onion

Assessment Panipet storage in onion

 

5

T1- Farmer’s practice -Storing of onion at field under shade condition  

 

T2 – Recommended practice - Foliar spray of MH @2500 PPM 15 days before harvest.

 

T3 – Alternative practice -Storing onion in a locally made up storage structures

 

Shelf life

 

 

Shelf life

 

 

 

Shelf life

 

1month

 

 

2-3months

 

 

 

5-6months

 

MH with Panipet type storage structure extended the onion storage life up to 6 months compared traditional method of storage

Providing bottom ventilation for free and faster air circulation to avoid formation of hot and humid pockets between the onion layers

Increased storage life of onion up to 5-6 months then conventional method of storage(1-2months)

Low cost structure for onion storage and maximum return when the price is high in the market due to storage of onion

Tomato

Assessment of tomato hybrids for summer seasons

 

T1- Farmer’s practice - No specific hybrids

 

 

T2 – Recommended practice- COTH 2

 

T3 – Alternative practice - Testing of improved hybrids (US 618,  Lakshimi 5005, US 4031)

Number of fruits /Plant

Yield/ha

 

Number of fruits /Plant

Yield/ha

 

Number of fruits /Plant

Yield/ha

Lakshmi  (20, 56t/ha)

US 618
(12, 34t/ha)

 

Co Th2 ( 33,62t/ha)

 

US 4031
( 52, 110t/ha)

Lakshmi  (20, 56t/ha)

US 618
(12, 34t/ha)

 

The  number of fruits/plant and yield were higher in US4031 when compared to other hybrids taken for evaluation

US 4031 performed better during summer than other hybrids Lakshmi NP5005, US 618, Co Th2

Cotton

Assessment of Bt cotton in rainfed ecosystem

5

T1-Sumangala 

 

 

 

T2- SVPR2

 

 

 

T3 -Bt cotton bunny

No. of Sympodia

No of bolls

Yield q/ha

No. of Sympodia

No of bolls

Yield

 

No. of Sympodia

No of bolls

Yield

12.0

 

12.0

7.0

11.0

 

12.5

7.2

 

14.5.

14.2

8.9

Bt bunny hybrid performs higher growth parameters and yield when compared to other varieties

Moisture stress will affect the growth and yield parameters of bt cotton

Brinjal/Bhendi

Management of mealy bug in vegetables

5

T1- Indiscriminate use of Insecticides

 

 

 

 

T2- Spraying of Chlorpyriphos 5ml/l followed by Profenophos 2ml/l

 

 

 

T3- Spraying of Neem oil 30 ml/l+ Verticillium lecanii 1x 108 spores/ml

Percentage infested plants

 

 

Yield/ha

BCR

Percentage infested plants

 

 

Yield/ha

BCR

Percentage infested plants

 

 

Yield/ha

BCR

Before treatment
32.6
After Treatment
25.4

62.0

1.67

Before treatment
34.5
After Treatment
20.3

83.0

2.64

Before treatment
33.8
After Treatment
14.8

87.0

2.95

Mealybug incidence was reduced to a level of 20.3 % and 14.8 % respectively due to the application of Chlorpyriphos 5ml/l followed by Profenophos 2ml/l and Spraying of Neem oil + Verticillium lecanii

Plant mortality due to mealybug incidence was reduced

Banana

Management of banana wilt

3

T1- Drenching of available fungicides

 

 

 

 

T2- Corm treatment using Pseudomonas and application of Pseudomonas along with FYM.
Capsule application with Bavistin on 3rd, 5th and 7th month of planting

T3- Pseudostem injection of Bavistin @ 4ml/ tree and drenching of Bavistin (4ml/l of water) @ 2 litres/ tree

Percentage disease incidence

 

 

Yield/ha

BCR

 

Percentage disease incidence

 

 

Yield/ha

BCR

 

Percentage disease incidence

 

 

Yield/ha

BCR

Before treatment
34.5
After Treatment
28.3

55.0

1.5

 

Before treatment
36.7
After Treatment
19.4

72.0

2.23

 

Before treatment
35.1
After Treatment
16.5

78.0

2.64

Panama wilt of banana is reduced to a level of 19.4 % and 16.5 % respectively due to Corm treatment using Pseudomonas and application of Pseudomonas along with FYM +
Capsule application with Bavistin on 3rd, 5th and 7th month of planting
and Pseudostem injection of Bavistin @ 4ml/ tree and drenching of Bavistin (4ml/l of water) @ 2 litres/ tree

Reduction in yield due to mortality of banana plants is reduced

Dairy

Management of infertility cross bred cows

25

T1- Repeated artificial insemination
T2 – Estrus synchronization with PGF 2 alpha and fixed time A1 after 72 hours
T3
Deworming , supplementation of mineral mixture @ 50 g /day for a period of three months and injection of tonophosphan

Body weight and fertility status

25 cows were weighed initially wt 390 kg/cow

After deworming , supplementation of mineral mixture @ 50 g /day for a period of three months and tonophosphan injection is given which resulted in animal increase of body weight ie 422 kg in 1 ½ months period and it was found that fertility status ,metabolism and milk production was improved in cows .

The farmer was satisfied as the animal increase in body weight and fertility status was improved.

 
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