有机无机复混肥配施不同水平镁肥对糖料蔗田间效应的影响  

Effects of Organic-inorganic Compound Fertilizer Combined with Different Levels of Magnesium Fertilizer on Sugarcane in the Field

作　　者：吴刃 经福林 冯学娟 梁明 刘建荣 张曼其 刘伟清 WU Ren;JING Fulin;FENG Xuejuan;LIANG Ming;LIU Jianrong;ZHANG Manqi;LIU Weiqing(Guangdong Zhanjiang State Farms Research Institute,Zhanjiang,Guangdong 524000,China)

机构地区：[1]广东省湛江农垦科学研究所,广东湛江524000

出　　处：《热带农业科学》2021年第12期25-29,共5页Chinese Journal of Tropical Agriculture

摘　　要：由于重施和偏施氮肥、磷肥和钾肥等化学肥料,忽视施用有机肥料及一些对甘蔗生长有着重要作用的中、微量营养元素,加上甘蔗的连作,导致大部分蔗区地力下降,土壤中大量的镁素养分被带走,在一定程度上抑制甘蔗产量及品质的提高。研究施用有机无机复混肥+不同量镁肥对糖料蔗田间效应的影响。结果表明,有机无机复混肥配施不同水平镁肥,不仅改善了糖料蔗地土壤营养状况,补充了土壤镁素养分,提高了土壤pH,还增加了糖料蔗株高、蔗茎重、产量以及经济收入,且有机无机复混肥配施150 kg/hm^(2)硫酸镁增加的经济收入最多(1584元/hm^(2)),值得推广应用。Heavy or single application of macroelement chemical fertilizers such as nitrogen fertilizer,phosphorus fertilizer and potassium fertilizer without application of organic fertilizers and some mesoand micro-element nutrients that play an important role in sugarcane growth,and continuous cropping of sugarcane have led to decline in soil fertility in most sugarcane areas,and a large number of magnesium has been removed from the soil,which has inhibited the improvement of sugarcane yield and quality to a certain extent.In this context,sugarcane was applied with the organic-inorganic compound fertilizer combined with magnesium fertilizer at different rates in the sugarcane field.The results showed that the organic-inorganic compound fertilizer combined with different levels of magnesium fertilizer not only improved the soil nutritional regimes in the sugarcane filed,supplemented the soil magnesium content,and improved soil pH,but also increased the plant height,cane weight,cane yield and economic income from sugarcane.The sugarcane treated with the organic-inorganic compound fertilizer combined with 150 kg·ha^(-1) magnesium sulfate generated the highest economic income(1584 yuan·ha^(-1))after cost subtraction,and the treatment is hence worthy of promotion and application.

关 键 词：糖料蔗 有机肥 硫酸镁 田间效应 

分 类 号：S147.2[农业科学—肥料学]