Success Stories


Situation analysis/Problem statement:

Greengram is cultivated in 9188ha mainly during Rabi (Dec-Jan) season in Tiruvallur District in the cropping pattern Rice-Rice-Greengram. The average productivity of this crop is 850kg /ha in Tiruvallur. KM 2 is the popularly cultivated variety in the District. This is a variety with indeterminate growth habit and needs several picking. This variety is also susceptible to pod borer leading to yield losses upto 25% and was released 20 years back. The new variety CO 8 released from TNAU during 2013 is a short duration variety maturing in 55-60 days, with determinate growth habit, synchronous maturity and non shattering nature. This is also tolerant to Yellow Mosaic Virus and Pod borer. Hence the variety CO 8 was introduced among the farmers through FLDs (2014-15 & 2017-18) and CFLDs (2016-17 & 2017-18).


Plan, Implement and Support:

Front Line Demonstrations during 2014-15 (10 demos) and 2017-18 (10 demos) and Cluster Front Line Demonstrations during 2016-17 & 2017-18 (50 demos each) in Greengram CO 8 was conducted by KrishiVigyan Kendra, Tirur in Ellapuram, Kadambattur, Ekkadu, Sholavaram and Pallipet blocks of Tiruvallur District. Awareness and skill demonstration on seed treatment, pulse wonder spray, use of yellow sticky trap and pheromone traps, Seed Production techniques, ICM and IPM practices were given to farmers through trainings and field days.  For seed production, Foundation seeds of CO 8 was procured and distributed from the Department of Agriculture, Tiruvallur. Seeds produced by the farmers were procured as certified seeds by the Dept. of Agriculture. Farmers also provided seeds to fellow farmers. Technical handouts on ICM and IPM in greengram was also provided to the farmers during trainings.


Demo was made on seed treatment with biofertilizers Rhizobium and Phosphobacteria @600g/ha. For YMV resistance, seed treatment with Imidacloprid@5ml/kg of seeds, growing of sorghum in the borders as trap crop, installation of yellow sticky trap and pheromone traps @ 12/ha for controlling white flies, spraying of Pulse wonder @5kg/ha during 30th and 45th DAS for inducing flowering and fruiting, spraying of neem oil 30 ml/lit and spraying of thiamethoxam @ 0.4 g/lit to control sucking pest of green gram.


Economic gains:


FLD (2014-15) FLD (2017-18) CFLD (2016-17) CFLD (2017-18)
Check Demo Check Demo Check Demo Check


Yield (q/ha) 8.90 11.24 9.08 11.45 9.20 11.23 9.54 11.62
Yield increase (%) 26.3 26.10 18.07 21.80
Cost of cultivation (Rs.) 18055 17785 22250 15250 18660 17450 24,200 22,500
Gross income (Rs.) 69240 87860 59020 74425 55320 67836 52,470 68,800
Net income (Rs.) 51365 69885 36770 59175 36660 50386 28,270 46,300
BCR 2.84 3.9 2.12 4.3 2.95 3.86 2.17 3.06

The average yield and productivity of the demo variety CO 8 was 11.39q/ha which significantly higher than the check variety KM 2 by 24.07%. The Net return and BCR was also found to be on the higher scale viz., Rs. 56437 (47% higher than the check) and 3.8 respectively. By seed production, this variety fetches Rs. 63 /kg and as grain it fetches Rs. 52/kg.

Mr. Harikrishnan, a progressive farmer from Perambakkam village of Tiruvallur District has achieved 526kg (1315kg/ha) of seed yield by cultivating CO 8 in one acre of his farm during Rabi, 2017-18. He raised a certified seed production farm out of the 8kg Foundation seed procured and distributed to him by KVK, Tirur from the Dept. of Agriculture. He adopted all the package of practices and got a gross income of Rs.33138/- per acre. The Dept. of Agriculture procured the certified seeds from the farmer @Rs.63/kg. He got a net income of Rs. 23354 and BCR of 3.37 in one acre.

His cost of cultivation and income details for One acre is as follows

Cost of Cultivation /Economic Returns

Amount (Rs.)

Land Peparation 2000
Cost of Seed (8kg) 1024
Sowing 200
Seed Treatment 60
Fertilizer cost 900
Weed management 700
Pulse Wonder/DAP spray 600
Pest and Disease control 300
Harvest and Post harvest handling charges 4500
Gross cost 9784
Gross Return 33138
Net Return 23354
B:C Ratio 3.37


CO 8 was found to be the best alternate to KM 2 and horizontal spread of this variety during 2017-18 was found to be 3200ha (30% of green gram area in Tiruvallur) during Rabi season in Tiruvallur District. In coming years horizontal spread is expected in more area.


  • CFLD and FLD on Greengram CO (Gg) 8 resulted in high yield and profit. BCR is on an average 3.8 in CO (Gg) 8than check.
  • The variety is resistant to Yellow Mosaic Virus.
  • Marketability is good.
  • Synchronous maturity and Non shattering in nature


Situation analysis/Problem statement:

In Tamil Nadu paddy is grown in 17.65 lakh ha with an average production of 64.74 lakh MT and productivity of 3668 Kg per ha (2014-15). In the North Eastern Zone of Tamil Nadu, Paddy is being cultivated in three seasons in thiruvallur district viz., Sornavari (Apr –Jul), Samaba (Aug – Nov)  andNavarai (Dec – Mar).In Thiruvallur district paddy is being cultivated in 96348 ha with the production of 4,26,203 MT and average productivity is  4423 Kg per ha. In Tiruvallur district farmers cultivate BPT 5204 and NLR 34449 varieties during samba season. Pest and disease incidence has been recorded high in these varieties. The variety CO 52 paddy variety has been released by Tamil Nadu Agricultural University during the year 2017. Duration of the crop variety is 130.135 days with the parentage of BPT 5204 and CO 50. It has medium slender white rice with the production capability of 6191 Kg per ha and 1000 grain weight is 14.1 grams. The special characters of the variety is medium tall, high yielding, moderately tolerate to Brown plant hopper, leaf hopper, blast, sheath blight, sheath rot and brown spot.




Plan, Implement and Support:

In Tiruvallur district, for the popularization of CO 52 variety for samba season, it was proposed to conduct field level demonstrations in ten places during the year 2017-18. Hence ten farmers were selected from four blocks viz., Ekadu, Gummidipoondi, Solavaram and Kadambathur of tiruvallurdistirct.  On campus and off campus trainings were given to farmers as well as extension personnel on various improved crop production technologies and integrated pest management practices.  The farmers were also facilitated with technical pamphlets on Nutrient management, Pest and disease management and wild boar management.  Demonstrations were made on seed treatment, Pheromone traps and sticky traps in pest monitoring, IPM and IDM concepts, harvest and post harvest operations. Technology intervention viz, supply of new variety CO 52 @ 40 kg/ha Seed treatment with  Azospirillum, Phosphobacteria&KRB each @ 600 g/ha seed & SA @ 2.0 kg/ha; Seed treatment –P. fluorescens @10 g/kg + 2.5 kg  SA;Machine transplanting;Installation of Pheromone trap @ 12 /ha ; Release of Trichogrammachilonis @5 cc/ha were demonstrated at field level. Necessary farm advisory services were given by the Subject Matter Specialist of KVK with varied specialization. The farmers were also facilitated with technical pamphlets.  Demonstrations were made on seed treatment, IPM and IDM concepts, harvest and  post harvest operations. Sowing was taken during the month Aug-Sep 2017 and harvested during the month of Dec 2017 – Jan 2018. Parameters viz., Height of the plant, number of tillers per hill, number of productive tillers per hill, incidence of Brown Plant hopper(no./hill), Stem borer (% damage), BLB, Blast (PDI), Yield (kg/ha) and BCR was observed and recorded form the demonstration fields.


Sowing of CO 52 was taken in ten farmers’ field in Tiruvaluur district during the month Aug-Sep 2017. Transplanting was done following SRI method. Seeds and other critical inputs viz., Pseudomonas, Azospirillum and KRB were distributed to the farmers for seed treatment and soil application. Crop was periodically visited, observed and critical parameters viz., Height of the plant, number of tillers per hill, number of productive tillers per hill, incidence of Brown Plant hopper(no./hill), Stem borer (% damage), BLB, Blast (PDI), Yield (kg/ha) and BCR were recorded. In all the demonstration fields crop was harvested with combined harvester during the month of Dec 2017 – Jan 2018.

Among the ten trials, a trial at Pondavakkam, Solavaram block, in a farmer V. Mahadevan field CO 52 variety recorded highest yield of 6460 kg per hectare.

Farmer : V. Mahadevan
Village : Pondavakkam, Solavaram
Area : 1ac
Yield : 6460 Kg per hectare

Average of ten demonstration trials (10 ac) in Kilampakkam, Pudumavilangai, Pondavakkam, Pannpakkam,andPonneri villages

Yield parameters, pest, disease incidence and economics assessed in varieties from ten trials

Parameters CO 52 `BPT 5204
No. of Productive  tillers/  sq.m 568.50 460.50
Yield (q/ha) 58.90 46.08
Yield  increase(%) 28.61
Cost  of cultivation(Rs.) 29000 31650
Net income(Rs.) 54087 37470
BCR 2.86 2.18

Maximum number of productive tillers was recorded in CO 52 variety (568.50 per sq.m). The yield recorded was 5890 kg per hectare over BPT 5204 with the yield of 4608 kg per hectare. Yield increase over the check variety BPT 5204 is 28.61 %. BPT 5204 variety was observed susceptible to stem borer, BPH, Blast and BLB incidence. Comparatively stem borer and Brown Plant Hopper incidence was less than the Economic Threshold Level (ETL) in CO 52 variety.


The farmers   were convinced with the grain type, yield and net returns. The net income and grain yield obtained in CO 52 was higher than BPT 5204. CO 52 was also found to be tolerant to major pest and diseases and hence is a best alternate to BPT 5204 as a medium duration variety for samba season of Tiruvallurdstrict. Demand   for seed is very high for the ensuing samba season 2018-19.


        The variety was demonstrated in 10 acres during Samba, 2017-18 and in the ensuing season, frontline demonstration on popularization of CO 52 variety will be followed and it is expected that the area of CO 52 during samba season will be increased.

3. Success story of TKM 13 – A Rice New High Yielding Variety for Samba Season

Mr. K. Logu

S/o. KanniyappaChettiyar


Kadambattur block

Tiruvallur Dt – 631 203

Mobile:  – 9445102318


Back ground:

Mr. K. Logu, S/o KanniyappaChettiyar aged 63 years is a progressive farmer from Pudumavilangai Village, Kadambattur Block of Tiruvallur district. He is doing farming for the past 35 years and is ready to adopt advanced farming technologies. He also leads Tiruvallur ATMA farmers and Farmer Interested Group (FIG). He follows SRI method of paddy cultivation and also farm mechanization viz., use of paddy transplanter, conoweeder, combined harvester etc. He also practices application of organic inputs viz., green manures, vermicompost, micronutrient mixture, biofertilizers like azolla, azospirillum, phosphobacteria. He judiciously uses insecticides and fungicide and decides timely application based on economic threshold levels. He is a Registered Seed Producer for the past 4 years. Every year B.Sc., Agricultural students and Diploma in Agriculture students are allotted to his farm under RAWE programme.

He supplies 4 tonnes of certified seed to the Agriculture Department every year. He also supplies quality seeds to the farmers of his village and nearby villages.


  • He has undergone trainings on Seed production and SRI techniques in Paddy at KVK, Tirur.
  • Certified Seed Producer of Paddy for the past 4 years.
  • He has conducted Front Line Demonstrations on seed production in Rice TKM 13 through KrishiVigyan Kendra, Tiruvallur during the year 2015-16. He has gained awareness and skill demonstration on seed production through trainings and field days. Seed procurement and distribution was done by Department of Agriculture, Tiruvallur and also provided seeds to fellow farmers.

Technology –   From TNAU

High Yielding New Rice Variety TKM 13 suitable for Samba Season

Parentage WGL 32100 x Swarrna
Duration 130 days
Season Suitable for Thaladi season (September sowing) and Samba season (August – September) for all the districts of Tamil Nadu

Economic gains

Variety Yield (kg/ha) Net Income (Rs. / ha)

BC Ratio

BPT 5204 4593 38,212 2.08
TKM 13 5816 58,559 2.70

When procured as Seed the variety fetches Rs. 28/- per kg as compared to the Rs. 14/- per kg as grain.

Feed back

  • Moderately resistant to major pest and diseases.
  • Good Consumer preference
  • Good cooking  and  keeping qualities
  • Easy marketing
  • Procurement price is  equivalent  to BPT 5204
  • High Milling Percentage
  • Parboiled Rice – 66%
  • Raw Rice          – 62%
  • Non Lodging nature
  • Gives comparable yield of 5.8 to 6t/ha when raised during Samba(Aug- Sep) and Navarai (Nov- Dec) seasons of Tiruvallur

Horizontal spread

  • He is a Progressive farmer following innovative crop production technologies and also a Seed producer in Kadambattur Block. Being a leader of ATMA and FIG of Kadambattur he disseminates the latest technologies to the farmers of Kadambathur block. Based on his success nearly 20 farmers were motivated to register for Seed Production and more farmers have raised TKM 13 during Samba season.
  • During the training programmes on Seed Production at KVK, Tirur, he has shared his experience to the farming community.
  • Best alternate for BPT 5204 and recommended for more horizontal spread.
  • Horizontal spread of TNAU Rice TKM 13 is realized in 3400 ha in Tiruvallur District in the current samba Season in convergence with Dept. of Agriculture.


Situation analysis / Problem statement:

         Tiruvallur district has fairly diverse cropping system with crops viz., paddy, pulses, Groundnut, Sesame, Vegetables (brinjal, bhendi, gourds etc.,), Moringa, Banana, Mango, Neem, Tamarind, etc.,. Some of the farmers/rural youths of this block are practicing apiculture as hobby. Bee keeping in Tiruvallur district is being followed by the farmers and rural youth as a hobby. Farmers’ following Apiculture as an enterprise is very less.


Plan, Implement and Support:

Trainings on agriculture and allied activities are being conducted by the KVK, Tiruvallur district for the benefit of farmers and rural youth, During World Honey Bee Day awareness and training on Apiculture was conducted on 19.08.2018 and around 90 were participated. Detailed lecture on various bee species and bee keeping procedure for Indian Bee and demonstration on honey extraction was given to the participants. In addition two on campus and two off campus training was conducted for rural and urban youth of Tiruvallur and in Chennai district.


In Tiruvallur district, Thiru. T. Arun Kannan, of Manavala Nagar, Ekadu Block is practising apiculture as a hobby. He has attended one day awareness and training Bee Keeping on World Honey Bee day at KVK, Tirur, Tiruvallur district and started his enterprise in a wider manner. He belongs to farm based family, but completed his degree and working in a private concern. He started with five hives in his backyard and later he installed additional hives in his village Purusai, Thakkolam with crops like pulses, vegetables, sesame, edward rose, jasmine, moringa, neem etc., With five boxes of his enterprise at his backyard now he has extended apiculture along with his friends Thiru. Premkumar and Thiru.Vivekanandan and now they are maintaining 37 boxes.

Initial investment bee hive purchase and maintenance Rs 8000.00
Honey yield per year from 37hives (3-4 harvest) 100 Kg
Income (Rs.400 per Kg) Rs. 40000.00
Net Income Rs.32000.00


By the intervention of KVK, Tiruvallur, a local rural youth and his friends turned to a entrepreneur. Thiru. T. Arun Kannan and his friends earned additional income from Apiculture and also satisfied it will enhance the yield of the crop with cross pollination, helps for maintaining the biodiversity situation and as one of the profitable economic activities since of its medicinal properties. Upon visiting to their bee hive farm, his friends and neighborhood and relatives asked him for the supply of honey for its purity without adulteration.


Thiru. T. Arun Kannan and his friends act as role models for the farmers to have bee-boxes by explaining the advantages. They expressed that due to the presence of bee-boxes, the pollination is occurred in time for the plant and trees to set flowers. The yield of the crop also gets increased. Biodiversity in the nature also get preserved with beekeeping promotion. He and his friends are very much interested in beekeeping and promotion of apiculture and marketing as it fetches additional income to their family. He also expressed that he will extend this enterprise since it plays major role in getting additional income, nurturing the nature and the mankind with its benefits. Their service will be utilized by the KVK, Tiruvallur as a successful entrepreneur for the benefit of farming community and also in developing entrepreneurs in Bee-keeping.


Th. V. Venkatathri,

S/o. Th. Amavasai,

Sri Ramakuppam village,

Katchur, UthukottaiTk,

Tiruvallur Dt.


Plan, Implement and Support:

A total area of 5234 ha was raised under SRI in the sub basin areas. The SRI technologies viz., seed rate of 7kg per hectare, raised bed nursery, 14 days old seedlings, single seedling, square transplanting with 25 x 25 cm spacing, weed management using conoweeder, alternate wetting and drying and nitrogen management using LCC were taught to the farmers and the farmers adopted the technologies explained. Also nursery preparations and transplanting skill were followed.


Maximum yield obtained was 7320 kg per hectare and net income of Rs.99816per hectare

An average of 6700 kg/ha of grain yield was realized by the farmers


Maximum yield with the use of reduced inputs, Adoption of all crop production technologies, Skills in raising of nursery and transplanting, Optimum use of fertilizers, Adoption of Integrated pest management technologies.


SRI has created a major impact among the farmers and 35,000 ha of SRI area was recorded in Tiruvallur District during 2016-17 accounting to 40.20 % of total rice area and more horizontal spread is anticipated in the ensuing season.