生态养猪垫料对新植蔗产量及品质的影响

Effect of pig-on-litter system padding on yield and quality of new planting sugarcane

【目的】探讨生态养猪垫料代替化肥对甘蔗生长、产量及品质的影响,以期为废弃生态养猪垫料的资源化利用提供科学依据。【方法】以甘蔗品种新台糖22号为材料,生态养猪垫料和化肥配施,以生态养猪垫料养分占总施肥量的25%、50%、100%设3个处理,另设不施用生态养猪垫料处理作对照进行田间试验。测定各处理土壤有机质含量、甘蔗生长性状及产量,分析各处理的经济效益。【结果】土壤有机质含量随着施用生态养猪垫料比例的增加而增加,施用生态养猪垫料占总施肥量25%、50%处理的+1叶全N、P、K含量与仅施用化肥的处理相当。施用生态养猪垫料的处理,甘蔗的出苗率及有效茎数均随着生态养猪垫料施用比例的增加而增加。化肥配合施25%和50%生态养猪垫料后,甘蔗的产量、蔗糖含量分别比对照高7.48%～15.80%和0.11%～0.68%,甘蔗生产的经济效益分别提高4041和8249元/ha。仅施用生态养猪垫料处理的产量、理论产糖量及经济效益均显著低于50%的处理。【结论】化肥配合施用生态养猪垫料有利于甘蔗的生长、产量及品质的提高,适宜的垫料与化肥配比为1∶1。

[Objective]The purpose of the present study was to explore the effect of chemical fertilizer replaced by pig-on-litter system padding on growth,yield and quality of sugarcane and provide scientific evidences for recourses reuse of wasted pig-on-little system padding.[Method]Four treatments,0（CK）,25％,50％ and 100％ of pig-on-litter system padding in total fertilizer application,were set in field experiments using ROC22 as testing materials to determine soil organic matter,growth traits,yield and economic benefits of every treatment.[Result]The results showed that the increases in padding application resulted in proportionately increase in soil organic matter （SOM）,emergence rate and effective stalks of sugarcane.The content of ＋1 leaf total N,P,K was similar among the treatments of 25％,50％ pig-on-litter system padding and the control.When padding application to total fertilization rate was 25％ and 50％,yield and sucrose content increased by 7.48％-15.80％ and 0.11％-0.68％,compared with the control.Meanwhile,economic benefits increased by 4041 Yuan/ha and RMB 8249 Yuan/ha,respectively.However,sugarcane stalk yield and theoretical sugar-production and economic benefit in only padding supply treatment were obvious lower than those of 50％ padding treatment.[Conclusion] The combined application of chemical fertilizer and pig-on-litter system padding is beneficial for growth,production and quality of sugarcane,and the appropriate proportion between padding material and chemical fertilizer is 1∶1.