【摘要】 试验研究甘蔗酒精废液的施用对甘蔗农艺性状的影响机理。结果表明,酒精废液的施用:(1)降低了甘蔗的发芽率,与CK1和CK2相比,处理75t和105t分别达到了显著和极显著水平;(2)提高了甘蔗的分蘖率,其中处理75t与CK1相比达到了显著水平;(3)综合起来,酒精废液处理的甘蔗总苗数还有所提高,但处理间不显著;(4)另外,酒精废液的施用降低了甘蔗十月份的株高;(5)各处理的茎径都比CK1的大,75t处理的茎径大于CK2,但十月份的株高和茎径各处理间都没有达到显著水平。各处理的甘蔗出苗率与施肥处理后土壤有效Cu和Cl-含量呈显著负相关;分蘖率与土壤NO3--N、胡敏酸含量呈显著正相关;总苗数与土壤胡敏酸含量呈显著正相关;株高与NO3--N、土壤胡敏酸和有效Cu含量分别呈显著和极显著负相关。说明土壤NO3--N、胡敏酸、有效Cu、Cl-在甘蔗出苗、分蘖和生长中分别起到了关键性的作用。更多还原

【Abstract】 The experiment was designed to study the effects of vinasse on the agronomic characters of sugarcane.The results showed that the sugarcane vinasse brought about the effects to sugarcane as following:(1) The vinasse reduced the germination percentage compared with CK1 and CK2, the germination percentages in the treatments applied 75t and 105t were significantly or extremely significantly lower than those in CK1 and CK2 respectively;(2) It enhanced the percentage of sugarcane tillering, and that of the treatment with 75t was higher than that of CK1 obviously.(3)The total number of sugarcane seedling little increased.(4) It reduced the height of sugarcane in October.(5) Stem diameters of every treatment were higher than that of CK1, and that of treatment with 75t was higher than that of CK2, but the sugarcane height and stem diameter between 5 treatments were no significant difference.After fertilization, the germination percentage was correlated negatively with the content of available Cu and Cl-in the soil.The percentage of tillering was correlated positively with the content of NO3--N and HA in the soil obviously.Total seedling number was correlated positively with the content of HA clearly.The height of sugarcane was correlated negatively with the content of NO3--N, HA and Cu in the soil.So the contents of NO3--N, HA, available Cu, Cl-in soil played a key role during the period of germination, tillering and growth.更多还原