Application Effect of Biochar on Rice
New technology of dry distillation under hypoxia condition was used for made biochar (biomass-derived black carbon).The effects of biochar application on rice were studied by pot experiment. Before rice transplant, soil were treated with three different weight levels of biochar and no biochar as control (CK).The results show that biochar amendments in rice soil could boost height of rice, and also increased the dry matter accumulation of leaf, stem and root at various growth stage. The rice net photosynthetic rates of biochar treatments were higher than control. Transpiration rate of biochar treatment was increased at the tillering stage and filling stage, declined at the jointing stage and heading stage as well. Rice yield per hill of biochar treatments were higher than control for the main reason of the panicles per hill and spikelets per panicle increased. The rice yield of C2 (20g·kg-1 biochar amendment) was the highest which significant difference compared with other treatments. Rice milling and appearance quality of biochar treatments were better than control with brown rice rate, milled rice rate and head rice rate were increased while the chalky grain rate and chalkiness were decreased. Rice protein and fatty acid content of biochar treatments were decreased, but the rice cooking quality was significantly increased.
Biochar rice photosynthesis yield quality
Zhang Weiming Chen Wenfu
Rice Research Institute of Shenyang Agricultural University, Shenyang, china, 110866 Biochar Engineering Technology Research Center of Liaoning Province, Shenyang, china, 110866
国际会议
山东淄博
英文
731-736
2011-05-27（万方平台首次上网日期，不代表论文的发表时间）