摘要
采用盆栽试验,研究聚磷酸铵(APP)添加不同生物源增效剂[腐植酸(HA)、氨基酸(AA)、海藻酸钠寡糖(AOS)]对小麦产量及磷素利用效率的影响,旨在明确生物源增效剂在APP上的应用效果,为以APP为原料的增值肥料研发提供依据。结果表明,与APP处理相比,APP添加生物源增效剂处理可不同程度促进小麦生长,提高分蘖,增加有效穗数8.5%~12.8%,APP+HA和APP+AA处理的小麦成穗率也显著提高;APP+HA处理还可提高开花期小麦旗叶胞间CO2浓度和净光合速率,降低气孔限制值,从而促进光合作用的进行;APP添加生物源增效剂处理小麦增产6.2%~13.5%,以APP+AA处理产量最高;APP添加生物源增效剂处理的小麦磷素利用效率、磷素干物质生产效率、磷素农学利用效率、磷肥生理利用率和磷肥生产效率分别较APP处理显著增加18.3%~29.1%、23.6%~33.4%、20.5%~44.9%、60.1%~102.8%和6.2%~13.5%,后三者均以APP+AA处理最高;但植株总磷积累量、磷素吸收效率和磷素表观回收率显著降低21.5%~29.2%、14.9%~20.2%和24.6%~33.4%,且不同增效剂处理间无显著差异;APP添加生物源增效剂处理的磷素收获指数也显著下降1.07~3.83个百分点,以APP+AOS处理降幅最小。综上,APP中添加生物源增效剂可进一步促进小麦增产,但对磷吸收及其向籽粒的转运有一定的不利影响。
Pot experiments were conducted to study the effects of ammonium polyphosphate(APP)added with different biological synergists[humic acid(HA),amino acids(AA)and alginate oligosaccharides(AOS)]on the yield and phosphorus(P)utilization efficiency of wheat(Triticum aestivum L.),so as to clarify the application effects of the biological synergists on APP and provide scientific basis for the development of value-added fertilizers using APP as raw material.The results showed that compared with APP treatment,the APP added with biological synergists treatments promoted the growth of wheat to different extents,enhanced tillering,and increased effective spike numbers by 8.5%—12.8%;moreover,the spike rates of wheat under APP+HA and APP+AA treatments were also increased significantly.APP+HA treatment raised the intercellular CO2 concentration and net photosynthetic rate of flag leaf at the flowering stage,and reduced the stomatal limit value,thereby promoting the photosynthesis.The APP added with biological synergists treatments increased wheat yield by 6.2%—13.5%,and APP+AA treatment had the highest yield.Compared with APP treatment,P utilization efficiency,P dry matter production efficiency,agronomic P utilization efficiency,P physiological efficiency and P fertilizer production efficiency of wheat under the APP added with biological synergists treatments were significantly increased by 18.3%—29.1%,23.6%—33.4%,20.5%—44.9%,60.1%—102.8%and 6.2%—13.5%respectively,with the biggest increase of APP+AA treatment for the last three indicators;however,the total P accumulation,P uptake efficiency and P recovery efficiency were significantly decreased by 21.5%—29.2%,14.9%—20.2%and 24.6%—33.4%respectively,and there were no significant differences among different biological synergist treatments.The P harvest index under the APP added with biological synergists treatments were also decreased significantly by 1.07—3.83 percentage points,and the APP+AOS treatment had the smallest drop.To sum up,the APP added with biolo
作者
张运红
杨占平
黄绍敏
郭斗斗
杜君
和爱玲
杨焕焕
ZHANG Yunhong;YANG Zhanping;HUANG Shaomin;GUO Doudou;DU Jun;HE Ailing;YANG Huanhuan(Institute of Plant Nutrition,Agricultural Resources and Environmental Science,Henan Academy of Agricultural Sciences/Henan Key Laboratory of Agricultural Eco-environment,Zhengzhou 450002,China)
出处
《河南农业科学》
北大核心
2021年第2期8-18,共11页
Journal of Henan Agricultural Sciences
基金
河南省农业科学院自主创新项目(2020ZC25)
河南省农业科学院科技创新创意项目(2020CX04)
国家重点研发计划项目(2017YFD201703)。
关键词
聚磷酸铵
生物源增效剂
小麦
产量
磷素利用效率
腐植酸
氨基酸
海藻酸钠寡糖
Ammonium polyphosphate
Biological synergists
Wheat(Triticum aestivum L.)
Yield
Phosphate utilization efficiency
Humic acid
Amino acids
Alginate oligosaccharides
