The decomposition and efficiency of NPK-enriched biochar addition on Ultisols with soybean
Autor: | Sukron Romadhona, Marga Mandala, Bambang Hermiyanto, Sugeng Winarso, Wachju Subchan, Hari Sulistiyowati |
---|---|
Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: |
Atmospheric Science
Randomized block design Soil Science 010501 environmental sciences lcsh:Plant culture 01 natural sciences Absorbance lcsh:Agriculture Dry weight ultisols Biochar biochar lcsh:SB1-1110 lcsh:Agriculture (General) 0105 earth and related environmental sciences decomposition Chemistry npk lcsh:S food and beverages 04 agricultural and veterinary sciences Rice straw Ultisol Straw Pollution Decomposition lcsh:S1-972 Agronomy efficiency 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Agronomy and Crop Science |
Zdroj: | Sains Tanah: Journal of Soil Science and Agroclimatology, Vol 17, Iss 1, Pp 35-41 (2020) |
ISSN: | 2356-1424 1412-3606 |
Popis: | This research aims to compare fresh biochar and NPK-enriched biochar and their decomposition levels and nutrient absorption efficiency in acid soil with soybean. Factorial randomized block design was used in this experiment and consisted of two factors. The first factor, biochar source, comprised four levels: B0: biochar without NPK, B1: rice straw biochar + NPK, B2: soybean straw biochar + NPK, and B3: wood biochar + NPK. The second factor, biochar enrichment, comprised four levels: D1: 0.5 tons ha-1, D2: 2.5 tons ha-1, D3: 5.0 tons ha-1, and D4: 10 tons ha-1. Each treatment was replicated three times, yielding 48 experiment units. The results showed that biochar enrichment with NPK affected the decomposition level. The percentage of increasing decomposition in enriched wood biochar (0.09%) was lower than rice (0.28%) and soybean (0.53%) straw biochar. An increase in NPK absorbance efficiency and soybean dry weight was evident in NPK-enriched biochar. The highest N absorbance efficiency occurred in wood biochar (21%), followed by soybean and rice straw biochar, respectively, while the highest P and K absorbances were found in rice straw biochar (35% and 26%, respectively), followed by wood and then soybean biochar. |
Databáze: | OpenAIRE |
Externí odkaz: |