TY  - JOUR
AU  - Li, Jin 
AU  - Zheng, Chao 
AU  - Wang, Xianmin 
AU  - Xue, Yingbin 
AU  - Duan, Tingting 
PY  - 2022
TI  - A Study on Response of Sugarcane Genotypes to Phosphorus Fertilizer in Western Guangdong, China
JF  - American Journal of Biochemistry and Biotechnology
VL  - 18
IS  - 3
DO  - 10.3844/ajbbsp.2022.349.357
UR  - https://thescipub.com/abstract/ajbbsp.2022.349.357
AB  - To optimize Phosphorus (P) fertilization, three sugarcane genotypes(ROC22, LC5135, and YT236) widely cultivated in western Guangdong, China wereused for the experiment in which 5 levels of P fertilizer were set up to studythe effects of their application. The results showed that: (1) P fertilization amountwithin 288 kg/hm2 P2O5 could increase theplant height, stem diameter, and weight and yield of sugarcanes. The yield ofROC22 was 14% more than LC5136 and 33% more than YT236. (2) The sucrose yieldof ROC22, YT236, and LC5136 increased firstly, followed by leveling off or nosignificant change with the increase of P fertilizer. The sucrose yield ofROC22 with 288 kg/hm2 P2O5 was significantlyhigher than other treatments. The average yield of ROC22 was 15% higher thanthat of LC5136 and 35% higher than that of YT236. (3) The P fertilizer useefficiency of ROC22 and LC5136 increased firstly and then decreased and that ofYT236 always decreased with increasing levels of P fertilizer application.Considering the yields of sugarcane and sucrose and the use efficiency of Pfertilizer, the optimum P fertilizer amounts of ROC22 and LC5136 were 288 kg/hm2and that of YT236 was 192 kg/hm2. The growth of ROC22 was betterthan that of LC5136 and YT236.