Research Article

Effects of biochar obtained at different pyrolysis temperatures on plant nutrients of maize

Volume: 59 Number: 1 March 30, 2022
EN TR

Effects of biochar obtained at different pyrolysis temperatures on plant nutrients of maize

Abstract

Objective: In this study, biochar was obtained from municipal park and garden pruning wastes at different pyrolysis temperatures at 300, 500 and 700° C. Contents of plant nutrients, fresh and dry weights above-ground parts (stem+leaf) of maize were investigated. Material and Methods: In pot experiment study, 5 biochar doses were obtained at 3 different pyrolysis temperatures T1 (300° C), T2 (500° C) and T3 (700° C), 3 replicates according to the randomized plot trial design control, 1 t/da, 2 t/da, 3t/da and 6 t/da. Experiment conducted with 45 pots (3x5x3), Hido silage maize (Zea mays L.) variety was grown as a test plant. Results: The highest N and B elements were obtained biochar application at 300°C while the lowest ones at 700°C. Phosphorus, potassium, calcium, magnesium, iron, zinc, copper and manganese elements were also determined and the highest values were obtained at 700°C and the lowest ones at 300°C in biochar application. The highest fresh and dry weight were obtained at 700°C and 300°C, respectively. Conclusion: Biochar applications for long periods in field studies and according to the results of soil analysis can provide more benefits. Generally, the pyrolysis temperature of 700°C and 6 t/da biochar application can be recommended.

Keywords

Agricultural waste , carbon , macro element , micro element , yield

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