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About On Farm Trials

On Farm Testing is to test and evaluate the research findings of Research Stations at the farmer's field and to refine and modify the technologies, if required for better adoption by farmers. It is confirmation of already proven research results under real farming situation. Based on the background information that the farmers do not adopt about 70% of the available technologies and hence it becomes necessary to take up farmer participatory testing of research findings in their own farms. Apart from convincing them it is also given an opportunity to refine or modify the recommendations to suite the requirements of the farmers in a given farming situation. Economically viable, operationally feasible technologies matching with farmers needs are identified to solve the problem faced by them.

The procedure of On-farm research has five steps viz.,




Assessment / Evaluation of results

Recommendation and diffusion

There is, however, a considerable overlap and feedback among these five steps


The diagnostic stage involves collecting and analyzing information in order to design On-farm experiments. In this steps, an understanding of farmers’ circumstances and practices are made in order to:

understand the farming system, and system interaction

identify possible productivity problems

begin to develop hypotheses on possible solutions


The planning on On-farm research is used to identify experimental factors to be included in on-farm experiments, as well as to suggest other research activities. There are six practical steps for research planning

Listing problems

Ranking problems

Identifying causes of problems

Diagram problems and causes

Listing possible solutions

Screening possible solutions for feasibility


On-farm experiments are conducted in the fields of representative farmers and to examine a small number of experimental variables. Those experiments may be described and classified in a number of ways, but regardless of classification most of them progress from exploring production problems, to testing possible solutions, and then to verifying recommendations and demonstrating them with farmers.


The results of the on-farm experiments should be analyzed carefully. The analysis requires an assessment of farmers’ reactions and opinions. A thorough agronomic interpretation, and careful statistical and economic analysis will be helpful to this stage. The results of the assessment are then used to plan future research and to make recommendations for farmers.

Recommendation and Diffusion

When researchers are confident that they have enough information, they can formulate recommendations and non-recommendations can be released for demonstration on a larger area in the farmers’ fields.

KVK submits the Action Plan for technical intervention to ICAR – ATARI. Based on the approval KVK conducts On Farm Testing in Field Crops, Horticulture Crops, Farm Implements, Enterprises and Livestock in the district.



Sl. No Crop/ Enterprise Technology to be assessed


Sl. No Crop/ Enterprise Technology to be assessed
1 Horsegram Assessment on high yielding Horsegram varieties (ATPHG 11 and Paiyur 2)
2 Groundnut Assessment on Groundnut varieties (TCGS 1694 and VRI 9) for higher productivity in Krishnagiri district
3 Blackgram Assessment on suitable MYMV resistant Blackgram varieties (VBN 11 and LBG 884) for higher productivity in Krishnagiri district
4 Paddy Assessment on suitable Blast resistant paddy varieties (CO 55 and RNR 15048) for higher productivity in Krishnagiri tract
5 Jasmine Assessment of Jasmine species for yield and market preference
6 Banana Assessment of banana cultivars for higher yield
7 Mango Suitability of Cover crop in mango orchards of Krishnagiri District
8 Paddy Assessment of TNAU Rice Reap for higher yield in Paddy
9 Paddy Assessment on Performance of Zinc solubilizing bacterial cultures in Paddy
10 Horsegram Assessment on Performance of Foliar nutrition to enhance the yield in Horsegram
11 Tomato Assessment on Foliar spray of TNAU Multi Micronutrients to increase the yield in Tomato
12 Mango Assessment of Fruit Fly Trapping Technology in Mango growing areas in Krishnagiri District
13 Tomato Assessment of IPM modules against Tomato pinworm
14 Mango Assessment of bacterial bio inoculant against mango anthracnose
15 Dairy Cattle Assessment of Nano Methicone Spray for control of Ectoparasite infestation in dairy cattle
16 Dairy Cattle Assessment on the effectiveness of different herbal anthelmintics in Small ruminants
17 Goat Assessment on the performance of Milk replacer for enhancing growth in Goat kids
18 Dairy Cows Assessment of Phyto-supplement "OmeB" for Milk fat modulation in crossbred dairy cows
19 Nutri Drink Assessment of different types of herbal powder incorporated instant nutri-drink

Last 3 Years OFTs

Year No. of OFTs Trials
2023-24 19 85
2022-23 12 70


Wild Boar Management in Groundnut
Field visit - Assessment of Small Ruminant Mineral Mixture on growth performance in Sheep
Different flavours of protein enriched mango bar
Field Visit - Tomato
Different Coating Formulations to improve the Shelf life of Fruits and Vegetables
Chickpea Field Visit
Tick Shield to mitigate the acaricidal resistance of ectoparasites in dairy cattle
Chilli Hybrids (Arka Saanvi and COCH1) for higher productivity
Protein enriched mango bar using solar drier
Chilli Seedlings Transplanting
Chilli Nursery
Field visit - Assessment of Small Ruminant Mineral Mixture on growth performance in Sheep