通过大田种植试验对崇蔗12-11、 崇蔗12-17以及崇蔗12-1463个甘蔗新品种出苗率、 分蘖率、 茎径、有效茎数及含糖量等指标进行测定.结果表明:崇蔗12-17不适宜在崇左蔗区种植,崇蔗12-11和崇蔗12-146在崇左蔗区综合表现良好,适宜在崇左蔗区推广种植.

Results of the 10th national sugarcane variety in Chongzuo of Guangxi 2014 to 2015 showed that Mintang 02-205 and Funong 07-3206 performed well. The performance of other varieties was not satisfactory among the 11 tested varieties. Mintang 02-205 outstanded as high cane and sugar yield, long-term sugar, good ratoon germination. The cane yield, sucrose, and sugar yield of Mintang 02-205 (both new-plant and ratoon) were higher than that of ROC22 (CK) by 5.7%, 0.89% (absolute value) and 12.09%. Funong 07-3206 showed more millable canes and good ratoon germination. The cane yield, sucrose, sugar yield of Funong 07-3206 (both new-plant and ratoon) were higher than that of ROC22 (CK) by 1.3%, 0.18% (absolute value) and 2.66%.

In order to select safe and effective agents to control malignant weeds of sugarcane, especially Cyperus rotundus, efficacy trials were conducted in sugarcane field using 75% chlorine pyrazosulfuron-ethyl. The results show that, 75%halosulfuron-methyl can be applied to control Cyperus rotundus, broad-leaved weeds and weeds in Cyperaceae. 75%halosulfuron-methyl has special effect on Cyperus rotundus, and can kill its roots and tubers and therefore the effect can be lasted to the next crop. The combined application of 75%halosulfuron-methyl (NC-319) and 55% Jia-Mie-Di (a mixed herbicide of diuron, methoxone and ametryn) can kill most weeds in cane fields with good effect.

The yield and sugar content of sugarcane are impacted by variety,environment and cultivation etc..This experiment is aiming at the impacts study of different nitrogen fertilization dates on yield and quality in sugarcane elongation period.The experiment results show that rational fertilization in elongation period is benefiting the increase of yield and quality.The best dates and application amounts are 1st July with carbamide 15kg/667m2,21th,July with carbamide 15kg/667m2.