The four firms are Rainbow Agro Vet Seri Technologies of Andhra Pradesh, P J Margo from Bengaluru, Greentech Fertilizer Corporation from Thiruvananthapuram and La Ferme De Peter LLP of Chennai.
“Karnataka is in the eighth place in horticulture production and we are in first place in Horticulture extension. Our aim is to attain second or third position in the coming days,” Shankar said.
The minister pointed out that prices crash because farmers depend on one crop and grow abundantly.
To check overproduction, research institutes should encourage farmers to adopt an integrated farming system, he added.