摘要
马铃薯(Solanum tuberosum)是毕节市重要的粮食作物,采用裂区试验设计,以脱毒马铃薯威芋3号为材料,在毕节中海拔地区探讨了不同覆盖方式对马铃薯产量的影响。结果表明:免耕覆膜缓释肥料处理的马铃薯薯质量、产量均为最大值,分别较稻草覆盖缓释肥料处理显著增加了13%和12%(P≤0.05),较垄作不覆膜缓释肥料处理显著增加了68%和66%(P≤0.05),经济总产值和净收益也为最大值,分别为37 271和20 792元/hm^2。进一步研究发现,免耕覆膜缓释肥料处理的马铃薯全氮、全磷和全钾含量均为最大值,较稻草覆盖配方肥处理显著增加了1.5、2.0和1.5倍(P≤0.05)、较垄作不覆膜缓释肥料处理显著增加了110%、120%和95%(P≤0.05)。
Solanum tuberosum is an important food crop in Beijie.In the experiment,potato variety Weiyu No.3 was used to study the effects of different cultivation models on potato yield by the design of the split zone test in the middle altitudes of Bijie.The results showed that tuber yield and potato yield of non-tillage and black plastic mulching with controlled release fertilizer were the maximum numbers,which were significantly higher by 13%and 12%than straw covering with controlled release fertilizer treatment,by 68%and 66%than bed-planting with controlled release fertilizer,respectively(P≤0.05).The economic output and economic net income were the largest number;the values were 37 271 yuan/hm2 and 20 709 yuan/hm2,respectively.Furthermore,potato total nitrogen,total phosphorus and total potassium were the highest number,which were significantly increment by 1.5 times,2 times and 1.5 times than straw covering formula fertilizer,and increment by 110%,120%and 95%than bed-planting with controlled release fertilizer,respectively(P≤0.05).
作者
杨永奎
于健龙
YANG Yong-kui;YU Jian-long(Bijie City Soil and Fertilizer Station,Bijie 551700,PRC;Animal Health Supervision Institute of Enshi,Enshi 445000,PRC)
出处
《湖南农业科学》
2018年第3期18-20,25,共4页
Hunan Agricultural Sciences
基金
贵州省"马铃薯黑膜覆盖高效栽培技术试验示范"项目(黔财农[2012]209号
黔农办发[2012]209号)
