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Effects of applying biochar and straw on nitrate leaching and maize yield production
Author(s) -
Partovi Zahra,
Ramezani Etedali Hadi,
Kaviani Abbas
Publication year - 2021
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12684
Subject(s) - biochar , straw , leaching (pedology) , agronomy , nitrate , chemistry , moisture , nitrogen , environmental science , soil water , soil science , pyrolysis , organic chemistry , biology
The aim of this study was to investigate the effect of biochar and wheat straw on nitrogen leaching and corn yield. Field experiment includes CO (control treatment), SM5 and SM10 (wheat straw with a thickness of 5 and 10 mm, respectively), ST5 and ST10 (wheat straw at a rate of 5 and 10 t ha −1 in combination with soil, respectively) and BT2.5 and BT5 (biochar at a rate of 2.5 t ha −1 in combination with soil). Results showed that the total amount of leached nitrate in BT5, SM10, BT2.5 and ST5 treatments decreased by 71%, 55%, 50% and 32%, respectively, compared to CO. Also, the increasing biochar application rate (BT5) led to enhance 28% in maize grain yield and reduce deep percolation, nitrate and nitrite leaching by 31%, 71% and 97%, respectively. Therefore, it seems that the use of bioshar and straw reduces nitrate leaching, improves soil moisture conditions and increases corn yield.