关键词: 水稻, 水稻, DUS测试, 标准品种, 符合系数, 差异性分析

Abstract: In order to investigate the effect of coal cinder in flue-cured tobacco planting, realize the waste utilization of coal cinder in flue-cured tobacco production, a field experiment was carried out at different dosage coal cinder and different application patterns, the tobacco agronomic traits, tobacco quality and economic traits were evaluated. The results showed that: by using coal cinder, the tobacco agronomic traits and economic traits were bettered, the internal chemical constituents of roast tobacco leaf were be more coordination. Among all the treatments, the T4 treatment (hole applying coal cinder 750 kg/hm2 and broadcasting coal cinder 15000 kg/hm2) was best improved tobacco economic traits. Compared with T9 treatment (none coal application), the yield increased 126 kg/hm2, increased by 5.22% ; the output value increased 4042.05 yuan/hm2, increased by 9.11%; the average price increased 0.68 yuan/kg, increased by 3.71%; the high class leaf ratio increased by 16.75%. After applying coal cinder, the heavy metals of arsenic in the soil and chromium in the roast tobacco leaf were reduced significant. The arsenic in the soil (except T3) and the chromium in the roast leaf were reduced more than 98%, 86.5% respectively.