Abstract
Silicate is an important nutrient element for rice plants. Rice is a plant that absorbs Si in large quantities. The low Si content in paddy fields is caused by intensive rice cultivation practices. Ash husk rice and bamboo leaves are materials that have a high silicate content so that the addition of husk ash and bamboo leaves can increase the availability of Si in nature. This research used Randomized Complete Block Design (RCBD), the factor that was tested were Factor I (source of Si : S1, S2) and Factor II (Dosage: D0, D1, D2, D3, D4). The results showed there is significant difference on the available Si, Si uptakeorganic matter, total number tiller, weight of 1000 grains. The application of Rice ask hush dose 10 Mg ha-1 (S1D4) can increase available Si, Uptake Si, Organic Matter, total number tiller and weight of 1000 grains than the appliacation of bamboo leaf.
Highlights
Rice is the staple food of Indonesian, the increse of population in Indonesia leads to the increase of rice consumption
The intensive rice cultivation causes the depletion of silica content in paddy soils (Darmawan et al 2006)
The first factor was silica sources including rice husk ash (S1) and bamboo leaf compost; and the second factor was the dose of silica sources consisting of 0 Mg ha-1 (D0), 2.5 Mg ha-1 (D1), 5 Mg ha-1 (D2), 7.5 Mg ha-1 (D3), and 10 Mg ha-1 (D4)
Summary
Rice is the staple food of Indonesian, the increse of population in Indonesia leads to the increase of rice consumption. The consumption of rice in Indonesia is relatively high, i.e. about 124 kg per capita year-1 (BPPT 2016). The increase of rice consumption in 2007 up to 2015 (BPS 2015) has lead to the continuous practice of rice cultivation. One of the obstacles to increase rice productivity intensively is the low silica (Si) content in paddy soils. The intensive rice cultivation causes the depletion of silica content in paddy soils (Darmawan et al 2006). Munawar (2011) showed that silica is an essential The intensive rice cultivation causes the depletion of silica content in paddy soils (Darmawan et al 2006). Munawar (2011) showed that silica is an essential
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