Testing Disease-free Ginger Production Technology and Transferring in farm conditions

Abstract

     Increasing threats of ginger from bacterial wilt: Ralstonia solanacearum, is impacted to ginger production. The objective of this study was to finding the integrated ginger production system that was produced high yield stability and able to replanted in the same area for farmer’s well-being sustainable development. This study eva luated the integrated ginger production technology consist of soil preparation with soil fumigation was mixed with lime and urea fertilizer rate of 800:80 kg/rai or 0.5:5.0 tons/hectare (1:10 ratio). After that, the soil was applied with bioproduct from Bacillus subtilis BS-DOA 24 strain for controlling bacterial wilt of ginger and disease-free rhizomes seeds from tissue culture of ginger three generations (G3, G4 and G5) at Phetchabun Highland Agricultural Research Center during 2016-2020. The rhizomes seed production after planting 11 months was free from bacterial wilt disease. The number of DOA’s G3 branches per rhizome (17 branches) was higher than other generation. In contrast, rhizome weight of G3 in DOA technology (433 g/rhizome) was lower than another treatment however DOA’s G5 (1,409 g/rhizome) was significantly heavier than farmer’s technology (910 g/rhizome). Total yield of DOA’s technology in G3 , G4 and G5 showed 3,248, 10,133 and 10,568 kg/ rai, respectively that the yield of DOA’s G5 was significantly higher than farmer method (6,725 kg/rai) or 36.36% increased. The production costs of rhizomes ginger in G3 (28,817 baht/rai) were higher than another treatment due to high - value of seeds prices in this generation. Net income of DOA’s G5 showed the highest of value as 211,360 baht/ rai therefore the profit (186,060 baht/rai) also was higher than farmer’s technology or 41.08% profit increased then BCR showed 7.35. During 2019-2020, 19 farmers were established field demonstration by using DOA’s techniques and these knowledges were transferred to 137 farmers for apply in their farming. Diseases-free rhizome seeds (9,040 kg) were planted in 20.1 rai of farmer fields at Khao Kho, Phetchabun. In summary, the disease-free ginger production was shown to increase productivity, decrease unit cost and increase net income and net profit, and BS - DOA 24 strain bioproduct was controlled bacterial wilt in all generations after replanted in the same area.