Biochar application to rice with 15N-labelled fertilizers, enhanced leaf nitrogen concentration and assimilation by improving morpho-physiological traits and soil quality

Effects of Biochar Amendment and Nitrogen Fertilizer on RVA Profile and Rice Grain Quality Attributes

“…BC had a high-pH level in our study, and when applied to acidic soil, it improved soil pH and other soil properties. Our findings are in line with De-Sousa-Lima et al [ 29 ], Ullah et al [ 9 ], and Ali et al [ 3 ], who reported that the addition of BC to soil improved soil pH, SOC TN, AK, and AP under paddy field conditions. Soil treated with BC amendment enhances the activities of soil enzymes and microbial biomass, which consequently improves soil physicochemical properties [ 30 , 31 , 32 ].…”

“…Therefore, we assumed that the grain yield of 2020 was increased due to the slow release of BC, which contributed more in the second year to soil fertility. Similar results of rice yield in BC-applied soil were reported by Ullah et al [ 9 ] and Fahad et al [ 18 ]. Grain viscosity traits, including peak, trough, and final viscosity, were increased with higher N rates in the current study.…”

“…Farmers believe that using higher doses of chemical fertilizers is the easy, dependable way to increase crop production [ 7 ] while ignoring the awful impacts on soil, crop quality, and environment [ 8 ]. To cope with these problems, alternatively, BC amendment is well known for improving soil physiochemical properties [ 9 ] and crop physiology without increasing chemical fertilizer usage [ 3 , 10 ].…”

“…BC addition to soil is considered a soil conditioner due to improving soil fertility and abating climate change by sequestering carbon [ 11 ]. Furthermore, BC application can increase crop growth by improving soil quality, which includes increasing beneficial microbial activity, improving water storage, and suppressing soil-borne disease; therefore, BC could be a useful soil amendment for crop production [ 3 , 9 , 11 , 12 ]. Applying BC in combination with N fertilizer improved rice starch metabolism enzymes and related gene expressions [ 13 ].…”

Impact of fertilization with reducing in nitrogen and phosphorous application on growth, yield and biomass accumulation of rice (Oryza sativa L.) under a dual cropping system

“…However, meeting this increased demand by enhancing crop production in current conventional farming systems is a major challenge. Nitrogen (N) has a significant effect on plant growth and production under various environmental conditions (Ullah et al, 2021;Leghari et al, 2016). The application of N through chemical fertilizer is the primary source of N in crop production (Tao et al, 2015;Ali et al, 2019), yet the excessive use of chemical fertilizer adversely affects soil health, the environment, and crop production (Ali et al, 2020).…”