Abstract:Waste resulted from the distillation of kayu putih leaves is a problem in almost all kayu putih refineries throughout Indonesia due to its enormous availability and un-utilization. It has potential to be used as an organic fertilizer source due to its nutrient content (macro and micro) which is higher than organic fertilizer from animals. The use of kayu putih waste is useful to complement and increase the efficiency of nitrogen fertilizer in soybean intercropping with kayu putih. This study aimed to determine… Show more
“…The ZA fertilizer used in this study contained 20.93% N-NH 4 + and 23.84% S-SO 4 2-. The pH(H 2 O), C, H, N and O in the biochar briquette used in this experiment were 8.05, 738.8 g kg -1 , 23.2 g kg -1 , 1.7 g kg -1 and 22.58 g kg -1 , respectively (Alam et al 2020).…”
Section: Experimental Designmentioning
confidence: 95%
“…The average volume and value of soybean imports over the 6 years (2013-2018) in Indonesia were 1.9 million tons and US$ 1.09 billion, respectively and the conversion of agricultural areas to nonagricultural areas was 96,512 ha year -1 (Mulyani et al 2017, Statistics Indonesia, 2018. Alternative strategies are to intensify the areas between Melaleuca cajuputi stands and reduce nitrogen loss (NL) (Alam et al 2020.…”
Section: Introductionmentioning
confidence: 99%
“…Waste from the distillation of M. cajuputi leaves is a problem in Indonesia because of its enormous availability and unutilization. M. cajuputi has the potential to be used as biochar and compost (Alam et al 2020). Nurmalasari et al (2020) reported that M. cajuputi biochar could increase the efficiency of urea fertilization by 18.22% while reducing N loss and increasing maize yield by 46.81% and 61.78%, respectively, compared with single urea application.…”
Section: Introductionmentioning
confidence: 99%
“…The deep placement application of 10 tons ha -1 biochar made from M. cajupti waste of 100 kg ha -1 ammonium sulfate produces soybean yield by 1.42 tons ha -1 (Alam et al 2020). This value is still lower than the potential and actual yield of Grobogan varieties, which are 3.40 and 2.77 tons ha -1 , respectively (Indonesian Legumes and Tuber Crops Research Institute, 2016).…”
Background: Nutrient briquette and biochar are used to reduce nitrogen loss and improve soil fertility. This study aimed to evaluate the interaction of biochar briquette with ammonium sulfate fertilizer for controlled nitrogen loss in soybean intercropping with Melaleuca cajuputi.Methods: The study was conducted in the wet season from November to February 2020 at Menggoran Forest Resort, Playen Forest Section, Yogyakarta Forest Management District, Indonesia. The experiment was using a randomized complete block design factorial with three blocks as the response surface methodology. The treatments included different levels of biochar briquette from Melaleuca cajuputi waste (0, 2 and 4 grain plant-1 or 0, 5 and 10 tons ha-1) and nitrogen fertilizer supplied by ammonium sulfate (0, 50 and 100 kg ha-1) as independent variables. The observation parameters were nitrate reductase activity (NRA), total chlorophyll (TC), leaf photosynthesis rate (LPR), nitrogen loss (NL), nitrogen use efficiency (NUE) and seed yield (SY).Result: The optimum values of 3.70 grain plant-1 or 9.25 tons ha-1 biochar briquette with 76.31 kg ha-1 ammonium sulfate fertilizer decreased NL by 38.25% and increased SY by 13.02% compared with single ammonium sulfate fertilizer.
“…The ZA fertilizer used in this study contained 20.93% N-NH 4 + and 23.84% S-SO 4 2-. The pH(H 2 O), C, H, N and O in the biochar briquette used in this experiment were 8.05, 738.8 g kg -1 , 23.2 g kg -1 , 1.7 g kg -1 and 22.58 g kg -1 , respectively (Alam et al 2020).…”
Section: Experimental Designmentioning
confidence: 95%
“…The average volume and value of soybean imports over the 6 years (2013-2018) in Indonesia were 1.9 million tons and US$ 1.09 billion, respectively and the conversion of agricultural areas to nonagricultural areas was 96,512 ha year -1 (Mulyani et al 2017, Statistics Indonesia, 2018. Alternative strategies are to intensify the areas between Melaleuca cajuputi stands and reduce nitrogen loss (NL) (Alam et al 2020.…”
Section: Introductionmentioning
confidence: 99%
“…Waste from the distillation of M. cajuputi leaves is a problem in Indonesia because of its enormous availability and unutilization. M. cajuputi has the potential to be used as biochar and compost (Alam et al 2020). Nurmalasari et al (2020) reported that M. cajuputi biochar could increase the efficiency of urea fertilization by 18.22% while reducing N loss and increasing maize yield by 46.81% and 61.78%, respectively, compared with single urea application.…”
Section: Introductionmentioning
confidence: 99%
“…The deep placement application of 10 tons ha -1 biochar made from M. cajupti waste of 100 kg ha -1 ammonium sulfate produces soybean yield by 1.42 tons ha -1 (Alam et al 2020). This value is still lower than the potential and actual yield of Grobogan varieties, which are 3.40 and 2.77 tons ha -1 , respectively (Indonesian Legumes and Tuber Crops Research Institute, 2016).…”
Background: Nutrient briquette and biochar are used to reduce nitrogen loss and improve soil fertility. This study aimed to evaluate the interaction of biochar briquette with ammonium sulfate fertilizer for controlled nitrogen loss in soybean intercropping with Melaleuca cajuputi.Methods: The study was conducted in the wet season from November to February 2020 at Menggoran Forest Resort, Playen Forest Section, Yogyakarta Forest Management District, Indonesia. The experiment was using a randomized complete block design factorial with three blocks as the response surface methodology. The treatments included different levels of biochar briquette from Melaleuca cajuputi waste (0, 2 and 4 grain plant-1 or 0, 5 and 10 tons ha-1) and nitrogen fertilizer supplied by ammonium sulfate (0, 50 and 100 kg ha-1) as independent variables. The observation parameters were nitrate reductase activity (NRA), total chlorophyll (TC), leaf photosynthesis rate (LPR), nitrogen loss (NL), nitrogen use efficiency (NUE) and seed yield (SY).Result: The optimum values of 3.70 grain plant-1 or 9.25 tons ha-1 biochar briquette with 76.31 kg ha-1 ammonium sulfate fertilizer decreased NL by 38.25% and increased SY by 13.02% compared with single ammonium sulfate fertilizer.
“…M. cajuputi waste can be used for soil amendment in the form of biochar. The pH H 2 O, C, H, O and N contents in the MCB were 8.05, 72.48%, 2.32%, 22.44% and 0.17%, respectively (Alam et al 2020b). The research study by Alam et al (2020b) informed that the applications of M. cajuputi waste (biochar and compost) and ammonium sulfate fertilizer by 2.89 and 2.27 tons ha -1 and 67.85 kg ha -1 , respectively, can increased NUE and soybean yield by 7.23% and 17.29%.…”
Background: The main problem in nitrogen fertilization for crop cultivated is the very low efficiency due to the leaching process. The purpose of this study was to the determination of the optimum levels of biochar amendment made from Melaleuca cajuputi biochar (MCB) and urea fertilizer (UF) for nitrogen use efficiency in upland rice under M. cajuputi stands.Methods: The study was conducted during dry season within March to June 2019 in Menggoran Forest Resort, Playen Forest Section, Yogyakarta Forest Management District, Indonesia. The experimental design was laid out in a randomized complete block design factorial with three replications as the response surface methodology (RSM). The treatments consisted of MCB levels (0, 5, 10, 15 tons ha-1) and UF levels (0, 100, 200, 300 kg ha-1) as independent variables. The observation parameters were nitrate reductase activity (NRA), total chlorophyll (TC), leaf photosynthesis rate (LPR), nitrogen loss (NL), nitrogen use efficiency (NUE) and seed yield (SY). The data was analyzed using RSM approach and ridge regression.Result: The optimizing applications of 11.14 tons ha-1 of MCB and 281.13 kg ha-1 of UF resulted in NUE and SY by 2.14 kg grain kg Nfertilizer-1 and 5.83 tons ha-1 or increased by 19.07% and 13.02%, compared to a single application of UF by 300 kg ha-1.
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