The Use of Rice Husk Biochar and Flooding System on Rice Production in Central of Sulawesi Indonesia
Keywords:
Biochar, soil amendment, Water Supply, Rice ProductionAbstract
The population growth rate is not in line with the rate of increase in food production, especially rice which is the staple food of 90% of the Indonesian people, to maintain food security in various government programs including PAJALE (Rice, corn and soybeans), through increased production through intensification or extensification. To increase land productivity, soil health must be improved using soil enhancers such as biochar. The source of biochar can come from plant residues such as rice husk. biochar can improve the physical, chemical and biological properties of the soil. Besides that, water management in the rice cultivation system is very important especially in certain phases of rice growth. This study aims to examine the use of Biochar doses and flooding systems on the efficiency of fertilizing and productivity of lowland rice plants. This study used a randomized block design, with a factorial pattern. The first factor consisted of 6 levels of treatment of biochar doses, 0, 1, 2, 3, 4, and 5 tons ha-1. And the second factor consists of 2 levels, namely, (p1) continuous water flooding and (p2) intermittent water flooding, observed response parameters, plant height, concentration leaf, N,P, K, number of tillers, number of productive tillers, weight 1000 grain, and ton ha-1 production. The results showed that the setting of flooding and biohcar use had a positive effect in increasing the number of productive tillers at an average of 21 tillers, rice production by 22.31% from 4.44 tons ha-1 to 6.99 tons ha-1 harvested dry grain (HDG) 14% moisture content in the use of a dose of 3 tons ha-1 Biochar rice husk. Water flooding do not affect statistical production.
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