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Proso millet (Panicum miliaceum L.) is a drought tolerant minor millet found in rainfed low input agricultural systems in Sri Lanka. This paper presents an analysis of characteristics of rainfall, of the onset, retreat and length of the ‘Yala’ growing season (March-September) and the relationship between rainfall and crop husbandry strat-egies in a Proso millet growing area. Daily rainfall data (1983-2015) obtained from Udawalawa, Sewanagala, Pelwatta, Thanamalwila and Kuda Oya meteorological stations were analysed along with information gathered from a survey of farmers. Among these 5 stations significant (p < 0.05) differences were found in retreat date, the length of the season and rainfall amount during the season. It was observed that onset date can be used to predict the season length with high accuracy (r = -0.7335, significant at p < 0.05). The selection of crops and the timing of crop management practices in the Proso millet growing area coincided with the distribution of rainfall. However, the yields reported by farmers (mean 1.18 t ha-1) are far below the expected potential (4 t ha-1). Soil moisture con-servation and water management strategies could be critical to reduce the risk of water-related damage in the susceptible flowering stage.

tropical agricultural research and extension

The relationship between rainfall characteristics and Proso millet (&lt;i&gt;Panicum miliaceum&lt;/i&gt; L.) cultivation in low country dry zone, Sri Lanka