摘要
以果蔗为研究对象,通过施用不同用量腐植酸钾,研究其对果蔗产量、品质及土壤特性的影响。结果表明,施用以木本泥炭为主要成分的腐植酸钾,可显著改善土壤的特性;随着腐植酸钾施用量的增加,土壤pH升高,土壤容重下降,土壤含水量提高,土壤碱解氮、速效磷含量升高。在与常规施肥等量钾的腐植酸钾施用量下,土壤容重比常规施肥处理下降11.0%,土壤含水量增加5.4%,碱解氮和速效磷含量分别提高16.8%和16.1%。结果也表明,施用以木本泥炭为主要成分的腐植酸钾,可提高果蔗的产量和品质,与常规施肥对照相比,当量常规施肥150%钾的腐植酸钾处理果蔗增产8.9%,糖分提高7.7%,效果显著。因此,以木本泥炭为主要成分的腐植酸钾的合理施用对酸性土壤质量改善及果蔗产量、品质的提升具有重要作用。
A fruit cane field experiment was conducted with different application rate of potassium humate to study its effects on cane yield, quality and soil characteristics. The results showed that with potassium humate supplied, soil characteristics were improved with soil bulk density decreased and soil pH, soil water content, soil alkaline N and available P increased. Compared with conventional fertilizer treatment, the soil bulk density was decreased by 11.0%, the soil water content, soil alkaline N and available P were increased by 5.4%, 16.8% and 16.1% respectively under 100% potassium humate treatment. The results also showed that the sugarcane yield and quality were improved with potassium humate supplied. Compared with the conventional fertilizer treatment, the cane yield and sucrose content were increased by 8.9% and 7.7% respectively with 150% potassium humate supplied. Therefore, potassium humate had a positive effectiveness on acid soils, cane yield and quality.
作者
敖俊华
周文灵
陈迪文
黄振瑞
黄莹
卢颖林
沈大春
江永
李奇伟
AO Jun-hua ZHOU Wen-ling CHEN Di-wen HUANG Zhen-rui HUANG Ying LU Ying-lin SHEN Da-chun JIANG Yong LI Qi-wei(Guangdong Provincial Bioengineering Institute （Guangzhou Sugarcane Industry Research Institute）/Guangdong Key Lab of Sugarcane Improvement ＆ Biorefinery, Guangzhou 510316)
出处
《甘蔗糖业》
2017年第2期9-13,共5页
Sugarcane and Canesugar
基金
广东省科技计划(2014B070705002
粤科规财字[2014]208号)
广东省科技计划(2015B070701001)
国家现代农业产业技术体系甘蔗专项(CARS-20-3-1)
关键词
果蔗
腐植酸钾
土壤改良
产量
糖分
Fruit cane
Potassium humate
Soil improvement
Cane yield
Sucrose content
作者简介
敖俊华（1980-），男，副研究员，主要从事植物养分资源管理及配套栽培技术研究；Email：25732520@qq．com
通讯作者：黄振瑞（1980-），男，博士，副研究员，主要从事植物养分资源管理及配套栽培技术研究；Email：fjsi@163．com
