海藻酸磷铵对小麦幼苗生长发育及根系指标的影响  

Effect of Diammonium Alginate Phosphate on Growth and Development of Wheat Seedlings and Root Indicators

作　　者：杜昌春 薛远赛 张守福 李玲燕[3] 韩伟 DU Changchun;XUE Yuansai;ZHANG Shoufu;LI Lingyan;HAN Wei(Juye Agricultural and Rural Bureau,Juye,Shandong 274900;Qingdao Koufuduo Ecological Agriculture Development Co.,Ltd.,Qingdao,Shandong 266000;Qingdao Agricultural University,Qingdao,Shandong 266000;Shandong Agricultural Technology Promotion Center,Jinan 250000)

机构地区：[1]巨野县农业农村局,山东巨野274900 [2]青岛口福多生态农业发展有限公司,山东青岛266000 [3]青岛农业大学,山东青岛266000 [4]山东省农业技术推广中心,济南250000

出　　处：《中国农学通报》2024年第13期7-12,共6页Chinese Agricultural Science Bulletin

基　　金：国家重点研发计划“寡糖类复合新材料的作用机理及其农业应用”(2019YFE0197100);国家重点研发计划“寡糖类复合新材料在山东典型农作物上的应用试验及示范推广”(2019YFE0197100-3);中央引导地方科技发展专项新型海藻酸肥料增效技术应用与推广项目(22-1-3-2-zyyd-nsh)。

摘　　要：为探究海藻酸磷铵对小麦幼苗生长发育及根系指标的影响,选取‘济麦22’为试验材料,设置57%海藻酸磷铵(T_(1))、57%海藻酸磷铵减量20%(T_(2))、57%普通磷铵(T_(3))及64%普通磷铵(T_(4))4个试验处理,每个试验处理设置1:300(F_(1))、1:600(F_(2))、1:900(F_(3))3个浓度,研究不同肥料对小麦幼苗生长、养分吸收及根系指标的影响。结果表明,在F_(2)条件下,其种子发芽势、发芽率、株高、干重、平均根系数量、平均根系长度、总根系面积、总根系表面、茎叶及根系氮磷含量、根系活力、根系分泌物含量等指标均高于其他处理;在任何浓度条件下,T_(1)各项指标与T_(3)差异显著,T_(2)处理的部分指标与T_(3)差异显著,但总体上高于T_(3)处理,其部分指标效果优于T_(4)。综上,海藻酸磷铵可显著促进小麦种子及幼苗的生长发育、对养分的吸收,其效果优于高含量磷铵,在减少施用量20%的情况下,海藻酸磷铵的效果仍优于同含量磷铵。To investigate the effect of diammonium alginate phosphate on the growth and development of wheat seedlings and root indicators,‘Jimai 22’was selected as the experimental material.Four experimental treatments were set up,including 57%diammonium alginate phosphate(T_(1)),57%diammonium alginate phosphate reduced by 20%(T_(2)),57%ordinary diammonium phosphate(T_(3)),and 64%ordinary diammonium phosphate(T_(4)),each experimental treatment was set with three concentrations of 1:300(F_(1)),1:600(F_(2)),and 1:900(F_(3)),to study on the effects of different fertilizers on the growth,nutrient absorption,and root system indicators of wheat seedlings.The results showed that under F_(2) conditions,its seed germination potential,germination rate,plant height,dry weight,average number of roots,average root length,total root area,total root surface area,nitrogen and phosphorus content in stems,leaves,and roots,root vitality,and root exudate content were all higher than those of other treatments.Under any concentration conditions,there was a significant difference in the indicators of T_(1) compared to T_(3).The indicators of T_(2) treatment showed significant differences in some indicators compared to T_(3),but overall,they were higher than that of T_(3) treatment.In some indicators,their effect was better than that of T_(4) treatment.In summary,diammonium alginate phosphate could significantly improve the growth and development of wheat seeds and seedlings,promote crop nutrient absorption,and its effect was better than that of high content diammonium phosphate.Despite reducing the application amount by 20%,the effect of diammonium alginate phosphate was still better than that of the same content ammonium phosphate.

关 键 词：海藻酸磷铵 小麦 生长发育 根系 

分 类 号：S512.11[农业科学—作物学]