Vol. 12, Special Issue 8 (2023)

Author(s):
Hemant Kumar Singh, Niraj Prakash, PK Ray, Pavan Singh, BN Saha, Rajeev Singh, MK Roy, Amrendra Kumar and Anjani Kumar

Abstract:
Ginger (Zingiber officinale Roscoe) is facing a serious issue with rhizome rot, which is caused by the fungal genus Fusarium oxysporum f. sp zingiberi. This problem is affecting the production and cultivation of ginger not only in the state of Bihar, but throughout the entire country. To investigate the effect of on-farm testing on the adoption of ginger production technologies among smallholder farmers in the Kishanganj district of the Koshi region of the state Bihar, we studied through adopting a pragmatic paradigm and a cross-sectional survey design, sampling farmers in two consecutive years (2021and 2022). A study was conducted by Krishi Vigyan Kendra in Kishanganj, Bihar, to develop alternative control strategies for reducing the dependence on synthetic fungicides. The focus was on managing rhizome rot disease in ginger using eco-friendly methods such as bio-control agents. The study was conducted using a randomized complete block design. Results revealed that the maximum average yield of ginger was 182.7 and 189.78 q/ha with pooled 186.24 q/ha was recorded with maximum rhizome germination 83.21% and 85.65% with pooled 84.43% and minimum plant infected 17.68% and 16.59 with pooled 17.13%, with application of T. harzianum 2.5 kg mixed with 50 kg FYM + Metalaxil MZ 1gm/l of water 3 drenching at 20 days of interval and BC ratio 2.75.