Application of ameliorants for of ex-tin mining soil improvement and increasing corn (Zea mays) yield

Abstract

Ex-tin mining land is a degraded land with low soil fertility and poor soil physical properties. The research aimed to find the best ameliorant for the improvement of ex-tin mining soil and corn yield. This experiment, conducted in Bangka Belitung Province, Indonesia, used a Randomized Block Design with 7 treatments and 4 replications: control, 20 t ha−1 biochar, 20 t ha−1 cattle manure, 20 t ha−1 mucuna compost, 10 t ha−1 biochar+10 t ha−1 cattle manure, 10 t ha−1 biochar+10 t ha−1 mucuna compost, and 10 t ha−1 cattle manure+10 t ha−1 mucuna compost. The corn variety used was Sukmaraga. The application of ameliorant significantly increased soil chemical properties (pH, potential and available P, potential and exch-K, exch-Ca, exch-Mg, exch-Na, and base saturation) and growth and yield of corn. The corn yield from the 20 t ha−1 biochar treatment was higher than that of the control, but was not significantly different from the other treatments. The single application of 20 t ha−1 biochar and the application of 10 t ha−1 biochar in combination with either 10 t ha−1 cattle manure or 10 t ha−1 mucuna compost resulted in the best soil chemical improvement and crop yields.

Characterization of Complete Land to Improve Rice Cultivation In Kendal District

“…Soils with a high Na content cause damage to soil structure and increase osmotic pressure so that the absorption of water and plant nutrients is disrupted (Wakeel, 2013). The addition of ameliorants can reduce the exchanged Na content (Ethika et al, 2021) so that it is in the range between low to high. Soil analysis conducted 25 days after the application of amelioran showed that the average Na exchange rate was higher and decreased in soil analysis 48 days after application of amelioran.…”

Role of Rice Husk Biochar in Improving Soil Physical Properties of ex Gold-Mined Soil

“…Another amendment material that is quite popular lately is biochar. Biochar could improve soil chemical properties (Yulnafatmawita et al 2020;Ethik et al 2021;Solfianti 2021), soil biological properties (Dermiyati et al, 2017;Nurbaity et al, 2019), and soil physical properties (Yulnafatmawita et al, 2021;Prakongkep et al, 2021;Gelardi et al, 2021;Fu et al, 2021).…”