Case Studies

Popularization of IPM techniques in coriander cultivation

Introduction

Coriander is a cash crop in the Bhimtal block and nearby areas of distt. Nainital. Farmers residing in these areas usually sell off season coriander in the month of August and September. In this season they used to sale the coriander leaves @ Rs. 5.00 for each 50 gram and hence this is their main cash crop. The farmers used to grow their old traditional self seeded variety which is usually less productive and more prone to diseases which results in poor quality of produce and lower yield. Farmers of village Sariatal, Rusi and Chopra viz Shri Kundan Singh Jeena, Shri Balam Singh, Shri Kamal Singh (Sariatal), Shri Mahendra Singh Negi (Chopra), Sri Giri Goswami and Sri Pan Singh Khani from Rusi Village etc. contacted to the scientists of Krishi Vigyan Kendra, Jeolikote (Nainital) and requested them to solve the problems of coriander which they are facing since last so many years. Based on this a team of scientists from KVK visited the different sites and collected the different diseased samples of coriander. The diseased samples of coriander were taken and were analyzed at Deptt. of Plant Pathology, Pantnagar. After the diagnosis it was found that coriander wilt and downy mildew were the major diseases of the coriander being grown by the farmers. More over the variety being used by the farmers was self seeded, local and single cut having good essence quality.

KVK Intervention

Based on above, a variety named as Pant Haritima from GBPUA&T, Pantnagar a multicut variety with a complete package including fertilizer and plant protection chemicals was introduced to the farmers of the area. Variety Pant Haritma was sown in the area at a distance of 30 cm apart. Sowing was done in the month of June. The seed of this variety was treated with Pant Bioagent 3 @ 10 gm/ kg of seed before sowing to reduce the disease level. Crop was also sprayed with Pant bioagent 3@10gm/litre after 30 days of sowing. This variety having multi cut crop characteristics. Weeding and interculture operations was managed from time to time, under the guidelines of KVK Scientist. After 40 day of sowing they started production from there field. Earlier they used to get production from their field after 45 days of sowing.

Output

Table indicates that local variety produced least yield i.e. 40.0 q/ha but highest disease incidence of 26.5% was noticed. Variety Pant Haritima having IPM techniques (Seed treatment and foliar spray with Pant bioagent-3) showed highest yield ie 60.4 q/ha with least disease incidence (5.6%). Pant Haritima variety with out any treatment produced yield 45.0 q/ha and 22.0 percent disease incidence. Local variety with use of bioagents produced yield 44.2 q/ha and disease incidence was found 20.0%. Farmers of the area also get a net income of Rs. 120500/ha with a B:C ratio of 4.95 with pant haritima and IPM technologies.