Effect of Coastal Sediment to Nutrient Availability and Maize Productivity on Entisols

Abstract

Entisols had a great potential for maize planting area expansion in increasing its production. The low soil fertility could be improved by application of coastal sediment. This current research examined the effect of different amount of coastal sediment on nutrient availability and maize production on Entisols, West Kalimantan. The research was conducted from July to November, 2013 in green house, Faculty of Agriculture, Tanjungpura University, West Kalimantan. The treatment conducted was the application of coastal sediment at dosage of: 0 Mg ha-1 (L 0), 14 Mg ha-1 (L 1), 28 Mg ha-1 (L 2), 42 Mg ha-1 (L 3), 56 Mg ha-1 (L 4), 72 ton ha-1 (L 5), 86 Mg ha-1 (L 6) and 100 Mg ha-1 (L 7). The treatments were arranged by completely randomized design with 3 replications. Research results showed that 42 Mg ha-1 coastal sediment was the best treatment and able to increase soil nutrients availability and maize productivity. The provision of coastal sediment increased the availability of K, Ca, Mg and Na, also the availability of nutrients in accordance with the increase of the dosage of coastal sediment.

The effect of ameliorants on improvement of soil fertility in post gold mining land at West Kalimantan

“…The increased Ca content due to the addition of coastal sediment was in line with the study of Suswati et al (2015) showing that provision of coastal sediment raised the contents of Ca and Mg in the soil. Table 4 shows that there were interactions between applications of ameliorant and semi-permeable layer on some soil chemical properties in PIGM land.…”

“…The coastal sediment for this study was alkaline with a pH of 8, due to the presence of base cations mainly Ca and Mg with concentrations of 9.75 and 5.82 cmol(+)/ kg, respectively. The content of Mg in coastal sediment was higher than that used by Suswati et al (2015), amounting to 1.73 cmol(+)/kg, while the Ca content was lower. The coastal sediment that was used by Suswati et al (2015) has Ca content of 14.62 cmol(+)/kg.…”

“…The content of Mg in coastal sediment was higher than that used by Suswati et al (2015), amounting to 1.73 cmol(+)/kg, while the Ca content was lower. The coastal sediment that was used by Suswati et al (2015) has Ca content of 14.62 cmol(+)/kg. It had high BS (82.87%) and consisted of 3.57% sand, 46.90% silt, and 49.53% clay.…”

“…The M3 treatment raised soil pH from pH 5.94 to 7.03. Suswati et al (2015) reported that application of coastal sediment at doses of 14-100 t/ha raised significantly soil pH because it contained high alkaline cations. Whereas biochar raised soil pH because biochar has negatively charged from phenolic, carboxyl and hydroxyl groups on biochar surfaces that bind H + ions in the soil solution, so reducing its concentration in the soil solution and raising the soil pH value (Gul et al, 2015).…”

“…According to Suswati (2009), the coastal sediment ameliorant could replace the role of lime in increasing pH and base saturation (BS). Results of the study of Suswati et al (2015) showed that the addition of coastal sediment on PIGM land reduced soil acidity, and improved CEC, BS, and availability of soil nutrients (K + , Ca 2+ , Mg 2+ and Na + ). Application of coastal sediment at a dose of 40 t/ha on peat could increase the yield of hybrid maize that reached 12 t/ha (Suswati et al, 2014).…”