Response of shallots varieties to mulch treatment and the different planting season in the lowlands

Abstract

The low production of shallots due to low productivity caused mainly by the not suitability of varieties, land and climate. The research aims to study 1) the response of varieties to mulch treatment, 2) the response of varieties to different planting seasons without mulch treatment to productivity shallots in the lowland. The study was conducted in the lowlands, Tapin district, South Kalimantan at the rainy and dry season 2017. Three shallots varieties of Batu Ijo, Bauji and Bima Brebes were planted in the 2017 rainy season which were treated with plastic mulch and without mulch. In the 2017 dry season, the three varieties were planted again without mulch treatment. The results showed that the average use mulch treatment in the rainy season increased the productivity of shallots (8.02 t ha-1) higher than without mulch (6.77 t ha-1). The average yield of Bauji variety (8.28 t ha-1) and Batu Ijo variety (8.28 t ha-1) was higher than Bima Brebes variety (4.52 t ha-1). The average productivity of shallots planted in the dry season was 12.37 t ha-1 higher than the rainy season 6.77 t ha-1. Bauji variety was more adaptive to be planted without mulch in the rainy or dry season than Batu Ijo and Bima Brebes varieties in the lowlands.