Ginger (Zingiber officinale) is perennial and endemic to South East Asia. It thrives best in humid climate from sea level to 1,500 m elevation. The crop performs well in a warm with temperature range of 19°C- 28°C and a humidity of 70-90% or more than 1,500 to 3,000mm of rainfall throughout their vegetative growth and rhizomes development. It requires moderate rainfall during their crop cycle from sowing time till the sprouting of rhizomes, fairly heavy and well distributed rain showers during the growing period and dry weather for about a month before harvesting are necessary. However, in Type 1 climate condition, the duration of rainy season is very short that lasted only for three and a half months from June to mid-September which could not sustain the soil moisture throughout the vegetative stage and rhizome formation, hence it requires supplemental irrigation after the end of rainy season to attain optimum growth and yield. The result showed that gingers irrigated from September to December 2020 and September 2020 to January 2021 were both has the most number of tillers with 13.45 tillers, while those irrigated from September to December 2020 were the tallest with 73.33cm. Likewise, those irrigated from September 2020 to January 2021 has the highest yield per hill (207.83 g) and per hectare (13,855kg).
