摘要
[目的]探究全塑软带喷灌水肥一体化技术的应用效果,筛选夏玉米最佳施肥方案。[方法]设置常规施肥(CK)、全塑软带喷灌4个处理(T_(1)减肥50.00%,T_(2)减肥33.33%,T_(3)减肥16.67%,T_(4)与CK施肥量相同),处理总灌水量90 mm。研究5种不同处理对华北地区夏玉米养分吸收和产量以及N、P、K偏生产力等的影响。[结果]施肥量相同,增加施肥频次和N、K施肥时间后移可提高夏玉米干物质累积量,T_(4)处理比CK的夏玉米全株干物质量提升12.34%。分次追施,肥料减量后移,可显著提升水分利用效率和养分吸收,T_(3)处理施肥量比CK减少16.67%,水分利用效率为23.61 kg/mm,比CK高19.12%,提高夏玉米产量16.63%;N、P和K偏生产力比CK分别提高33.93%、16.63%和28.65%。[结论]全塑软带灌溉水肥一体化技术可提高夏玉米的产量、水分利用效率和肥料利用效率。
[Objective]To explore the application effect of water and fertilizer integration technology of spray irrigation with plastic belt,and screen the best fertilization scheme for summer maize.[Method]The conventional fertilization(CK)was applied,and sprinkler irrigation system with all plastic tube was applied to 4 treatments(T_(1)weight loss 50.00%,T_(2)weight loss 33.33%,T_(3)weight loss 16.67%,T_(4)and CK fertilizer amount was the same),and the total irrigation amount of each treatment was 90 mm.The effects of five different water and fertilizer treatments on nutrient absorption,final yield,partial productivity of nitrogen,phosphorus and potassium of summer maize in North China were analyzed.[Result]The results showed that the dry matter accumulation of summer maize was increased by increasing the frequency of fertilization and the time of N and K fertilization,and the yield was increased by 12.34%under T_(4)treatment compared with CK.The water use efficiency(WUE)and nutrient uptake were significantly increased by applying fertilizer in different stages,the amount of fertilizer applied by T_(3)treatment was 16.67%less than that of CK,and the water productivity was 23.61 kg/mm,22.13%higher than that of CK.T_(3)treatment can increase the yield of summer maize by 16.63%.The partial factor productivity of N,P and K increased by 33.93%,16.63%and 28.65%,respectively.[Conclusion]The yield,water use efficiency and fertilizer use efficiency of summer maize can be improved by the integrated technology of irrigation water and fertilizer in sprinkler irrigation system with all plastic tube.
作者
石学萍
兰印超
杨京
张巧英
郑成海
檀海斌
SHI Xue-ping;LAN Yin-chao;YANG Jing(The Semi-arid Agriculture Engineering and Technology Research Center of P.R.China,Shijiazhuang,Hebei 050051)
出处
《安徽农业科学》
CAS
2022年第17期179-183,190,共6页
Journal of Anhui Agricultural Sciences
基金
河北省重点研发计划项目(19227004D,21327002D)
河北省平原粮食规模化生产科技示范工程项目。
关键词
夏玉米
全塑软带喷灌
产量
养分吸收
偏生产力
Summer maize
Sprinkler irrigation system with all plastic tube
Yield
Nutrient absorption
Partial factor productivity
