摘要
根据湛江蔗区蔗田环境生态、土壤偏中强酸的特点,利用煤灰作为主要土壤改良剂,通过煤灰与常规磷肥、尿素、钾肥等进行配方施肥,以沟施作基肥的方式进行了甘蔗种植试验研究。结果表明,在本试验条件下,常规施肥区加施煤灰5250kg/hm2最合适,效果最佳,甘蔗长势较旺盛,蔗茎产量和含糖量均达最高,但增产增糖不显著。糖厂可因地制宜、就地取材,利用煤灰+常规肥种植甘蔗,可改善土壤质量及理化环境,减少煤灰占地污染,提高蔗茎产量和含糖量。
Coal ash was used as the main soil amendment in accordance with the characteristics of environmental ecology and soil pH value in Zhanjiang area. The sugarcane planting experiment was carried out with different amount of coal ash in addition to the conventional fertilization of N. P and K, the ash was applied as basal dressing in ditch. The results showed that the sugarcane treated with the conventional fertilization plus 5250 kg/hm^2 ash grew vigorously and obtained the highest cane and sugar yield. Therefore, it was good for sugar companies to plant sugarcane with coal ash in addition to conventional fertilization. In this way, it can not only improve the soil condition and reduce the ash pollution, but also increase the sugar and cane yield.
出处
《甘蔗糖业》
2010年第3期19-22,38,44,共6页
Sugarcane and Canesugar
基金
广东省科学技术厅农业领域引导项目"早熟
高糖丰产优质甘蔗新品种选育"(2009B020415014)
广东省中小企业局财政扶持专项资金"广东省蔗糖产业综合利用技术公共服务平台建设"(2007年)
关键词
煤灰
甘蔗
改土培肥
产量
Coal ash
Sugarcane
Improving soil condition
Yield
