Mulyati, Mulyati Using Biochar to Improve The Soil Quality, Growth and Yield of Soybean (Glacine max L.) in The Sub-Optimal Land of Lombok. In: Seminar Nasional Pengelolaan dan Peningkatan Kualitas Lahan Sub-Optimal untuk Mendukung Terwujudnya Ketahanan Pangan Kedaulatan Pagan Nasional, 3 Mei 2016, Pontianak.
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Abstract
Most of the agricultural soil in Lombok are Sandy soils with very course in texture, low soil organic carbon (SOC), fertility and poor water holding capacity (WHC). Using biochar would improve the soil quality in sub optimal (dryland) and degraded land. Two set of experiments were carried out to evaluate the soil chemical properties after incubating for 15 and 30 days; and to investigate the response of growth and yield of soybean plants. Two factors were tested : the first factor was three types of biochar ( without biochar, B0; tobacco stem, B1; rice husk, B2; and coconut shell, B3), and the second factor consisted three rates of nitrogen fertilizers ( 0, 50, 100 kg urea ha-1). Pots were arranged in a Completely Randomized Design (CRD) in the pattern of factorial, with three replicates under glass house condition. Data obtained were analyzed by analysis of variance at 5% significance level. Results show that the application of biochar significantly enchanced the changes of soil chemical properties or improve the soil quality especially for soil pH, soil carbon organic (SOC), cation exchange capacity (CEC) at 15 days incubation. Soil without biochar added had the lowest levels of total N and the highest total N was obtained in adding tobacco stem biochar. There was no interaction between the biochars and nitrogen rates on soybean growth and yield. Adding biochar increased the number of leaves and seeds, but no significant effects on plant height, days of flowering, shoot dry weight, number of pods and the weight of seeds. Therefore, further research should be done to investigate if the application of biochar had a residual effect for the next cropping
| Item Type: | Conference or Workshop Item (Speech) |
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| Keywords (Kata Kunci): | biochar, soil quality, growth, yield, |
| Subjects: | T Technology > TD Environmental technology. Sanitary engineering |
| Divisions: | Fakultas Pertanian |
| Depositing User: | Prof. Ir. Mulyati SU.,Ph.D |
| Date Deposited: | 17 Oct 2021 23:57 |
| Last Modified: | 17 Oct 2021 23:57 |
| URI: | http://eprints.unram.ac.id/id/eprint/25032 |
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