摘要
研究以品种‘桂辐98-296’(‘GF98-296’)种茎直接补种‘桂柳05-136’(‘GL05-136’)宿根蔗地对甘蔗农艺性状及其经济效益的影响,以解决甘蔗宿根缺株断垄问题,为推广“种茎直接补种新技术”提供科学依据。试验设‘GF98-296’种茎直接补种‘GL05-136’宿根蔗地(处理A)、‘GL05-136’种茎直接补种‘GL05-136’宿根蔗地(处理B)、不补种自然状态下‘GL05-136’宿根蔗地(CK),共3个处理;在‘GL05-136’宿根苗期2~4张叶片时期实施补种,到工艺成熟期调查3个处理甘蔗的农艺性状及其单位面积产量,并进行比较分析。结果表明:处理A产量为79.55 t/hm2,分别比CK、处理B增产19.29、13.91 t/hm2,增幅分别达32.01%、21.18%,且差异达极显著水平;处理B产量与CK差异不显著;直接补种不影响‘GL05-136’宿根蔗的发株、产量和蔗糖分;工艺成熟期时,‘GF98-296’蔗茎的蔗糖分与‘GL05-136’宿根蔗茎的相当。经济效益分析表明,以‘GF98-296’种茎直接补种‘GL05-136’宿根蔗地,蔗农增收5071.0元/hm2;制糖企业可增加工业产值15573.0元/hm2。表明‘GF98-296’适宜作为‘GL05-136’宿根蔗地种茎直接补种品种,可进行大面积示范和推广。
In order to explore the use of‘GF98-296’to solve the problem of seedlingless ridges in sugarcane roots,the effects on the agronomic traits of the directly replanted cane seed of‘GF98-296’in the‘GL05-136’ratoon were studied,which would provide a scientific basis for popularization and application.Three treatments including‘GF98-296’seed cane directly replanted in‘GL05-136’ratoon(A),‘GL05-136’seed cane directly replanted in‘GL05-136’ratoon(B)and‘GL05-136’natural ratoon(CK)were designed in this experiment.‘GF98-296’seed cane replanted was carried out in the 2–4 leaf stage of‘GL05-136’ratoon.The agronomic traits of the treatments were investigated and the economic benefits were analyzed in harvest stage.The yield of treatment A was 79.55 t/hm2,which increased 19.29 t/hm2 and 13.91 t/hm2,or 32.01%and 21.18%,respectively,compared with that of CK and treatment B,and the difference was extremely significant.There was no significant difference in yield between treatment B and CK.Direct replanting treatments did not affect the growth,yield and sucrose content of‘GL05-136’ratoon.The sucrose content of‘GF98-296’in treatment A was almost the same as that of‘GL05-136’ratoon at the technology maturity stage.Economic benefit analysis showed that sugarcane growers could increase income of 5071.0 yuan/hm2 and sugar enterprises increase industrial output of 15573.0 yuan/hm2 using‘GF98-296’seed cane directly replanting‘GL05-136’ratoon.The study indicated that‘GF98-296’was suitable for directly replanting‘GL05-136’ratoon,and this new technology should be extensively demonstrated and popularized.
作者
游建华
梁阗
樊保宁
吴凯朝
谭宏伟
黄日宏
贾兆雄
蔡拥明
YOU Jianhua;LIANG Tian;FAN Baoning;WU Kaichao;TAN Hongwei;HUANG Rihong;JIA Zhaoxiong;CAI Yongming(Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530007,China;Guangxi Academy of Agricultural Sciences,Nanning,Guangxi 530007,China;Honghe Sugar Industry Group Co.,Ltd.,Guangxi Sugar Group,Laibin,Guangxi 546128,China;Rongshuihemu Co.,Ltd.,Guangxi Fengtang Sugar Industry Group,Rongshui,Guangxi 545302,China)
出处
《热带作物学报》
CSCD
北大核心
2020年第9期1790-1796,共7页
Chinese Journal of Tropical Crops
基金
广西农业重点科技计划项目“桂辐98-296种茎直接补种延长主栽品种宿根的研究”(No.201524)
国家糖料产业技术体系“甘蔗宿根栽培岗位”项目(No.CARS-170206)
国家自然科学基金项目“甘蔗宿根矮化病罹患病株根际微生物群落结构重建及拮抗菌的鉴定与利用研究”(No.31760368)。