PENGGUNAAN PUPUK CAIR Chromolaena odorata DAN KALIUM DALAM MENEKAN KEHAMPAAN DAN MENINGKATKAN HASIL PADI UNGU BLACK MADRAS

Black Madras purple rice is a rice variety that is still not widely cultivated and consumed in Indonesia. One of the advantages of this rice is low sugar content, making it suitable for consumption by people with diabetes and heart disease. Fertilizers are very influential on growth, garin void and yield of crops, including Black Madras purple rice. The aimed of this research was to determine the effect of Chromolaena odorata and potassium liquid fertilizer in reducing voidness and increasing yield of Black Madras purple rice. The experiment was conducted in Kelurahan Lubuk Lintah, Padang with a height of ± 20 m above sea level. The research design used was a Factorial Complete Randomized Design with 3 replications. The treatments consisted of liquid C.odorata fertilizer with concentrations of 0, 25 and 50 ml L-1 and KCl fertilizer (60% K2O) with levels of 0, 50, 100 and 150 kg ha-1. The results showed that the administration of 25 ml L-1 liquid fertilizer C.odorata was effective and efficient in reducing empty grain to 55%. The application of 100 kg ha-1 of KCl fertilizer and 25 ml L-1 of liquid feritilizer C.odorata was the optimum recommendation for purple rice plants and produced 7.88 t ha-1 dry grain harvest.