摘要
为研究适合马铃薯化肥减量及生物有机肥替代的最佳方案,以马铃薯为供试材料,探究不同化肥减量及配施不同生物有机肥用量对马铃薯产量、矿质元素含量及土壤肥力的影响。试验处理包括对照组CK1(不施肥)、CK2(当地施肥用量)、T1(化肥减量20%+生物有机肥1500 kg·hm^(-2))、T2(化肥减量30%+生物有机肥1500 kg·hm^(-2))、T3(化肥减量40%+生物有机肥1500 kg·hm^(-2))、T4(化肥减量20%+生物有机肥2100 kg·hm^(-2))、T5(化肥减量30%+生物有机肥2100 kg·hm^(-2))、T6(化肥减量40%+生物有机肥2100 kg·hm^(-2))。结果表明,T5处理下马铃薯株高、茎粗、土壤磷酸酶活性、过氧化氢酶活性、蔗糖酶活性、速效钾含量、速效磷含量和有机质含量在各生育期均达到最高,且与CK2处理相比,马铃薯总产量、商品薯产量、商品薯率、Ca和Mg含量分别提高了13.61%、22.46%、7.79%、18.81%和9.98%。综上所述,该处理可以作为提高当地马铃薯产量、品质和改善土壤环境的最优化肥减量及配施生物有机肥组合。
In order to study the best scheme suitable for potato fertilizer reduction and bio-organic fertilizer replacement.Potato was used as test material,the effects of different reduction gradients of fertilizer and different dosages of biological organic fertilizer on potato yield,mineral element content and soil fertility were studied.The experimental treatments included control group CK1(no fertilization),CK2(local fertilization rate),T1(fertilizer reduction 20%+bio-organic fertilizer 1500 kg·hm^(-2)),T2(fertilizer reduction 30%+bio-organic fertilizer 1500 kg·hm^(-2)),and T3(fertilizer reduction 40%+bio-organic fertilizer 1500)kg·hm^(-2)),T4(fertilizer reduction by 20%+bio-organic fertilizer 2100 kg·hm^(-2)),T5(fertilizer reduction by 30%+bio-organic fertilizer 2100 kg·hm^(-2))and T6(fertilizer reduction by 40%+bio-organic fertilizer 2100 kg·hm^(-2)).The experimental results showed that plant height,stem diameter,soil phosphatase activity,catalase activity,sucrase activity,available potassium content,available phosphorus content and organic matter content of potato under T5 treatment reached the maximum at each growth stage.Compared with CK2 treatment,total potato production,commercial potato yield,commercial potato rate,Ca and Mg contents,increased by 13.61%,22.46%,7.79%,18.81%and 9.98%,respectively.Therefore,this treatment can be used as the optimal fertilizer reduction and combined application of bio-organic fertilizer to improve the yield and quality of local potato and soil environment.
作者
杜宏辉
贾学刚
杨涛
DU Honghui;JIA Xuegang;YANG Tao(Horticultural Station of Weiyuan County,Gansu Province,Weiyuan 748200,Gansu,China;Gansu Field Agricultural Science and Technology Co.,Ltd.,Weiyuan 748200,Gansu,China;Institute of Biology,Gansu Academy of Sciences,Lanzhou 730030,Gansu,China)
出处
《中国瓜菜》
CAS
北大核心
2023年第9期66-74,共9页
China Cucurbits And Vegetables
基金
定西市科技创新合作项目(DX2021BH05)。
关键词
马铃薯
生物有机肥
产量
矿质元素
土壤肥力
Potato
Biological organic fertilizer
Yield
Mineral element
Soil fertility
