青贮饲料大麦新品种川农饲麦1号高产栽培方案研究  

A Study of High-yielding Cultivation Techniques of the New Silage Feeding Barley Cultivar "Chuannongsimai 1"

作　　者：王丹丹[1,2] 汪文琴 叶少平 袁金娥[2] 刘新春 张雅[3] 冯宗云 WANG Dan-dan;WANG Wen-qin;YE Shao-ping;YUAN Jin-e;LIU Xin-chun;ZHANG Ya;FENG Zong-yun(Barley and Hulless Barley Research Centre,College of Agronomy,Sichuan Agricultural University,Chengdu 611130,China;Chengdu Vocational College of Agricultural Science and Technology,Chengdu 611130,China;Chengdu Xiangyun Earth Agricultural Science and Technology Co. Ltd. ,Chongzhou 6111231,China)

机构地区：[1]四川农业大学农学院大麦青稞研究中心,四川成都611130 [2]成都农业科技职业学院,四川成都611130 [3]成都翔云大地农业科技有限责任公司,四川崇州611231

出　　处：《大麦与谷类科学》2019年第2期17-21,共5页Barley and Cereal Sciences

基　　金：国家现代农业产业技术体系(大麦青稞)建设项目(CA RS-05)

摘　　要：为了明确新选育的饲料大麦品种川农饲麦1号作青贮用时的适宜收获时期及其栽培技术,采用4因素5水平二次回归通用旋转组合设计方法研究了播种密度(X1)、播种期(X2)、收割期(X3)和氮肥用量(X4)4个因素在成都种植时的最佳栽培技术模式。其鲜质量产量为目标函数Y(kg/667 m^2)的数学回归模型为:Y=2 172.172 1+104.449 7 X1-276.310 1 X2-76.485 3 X3-64.818 1 X4+3.789 9 X12+42.680 7X22-5.377 3 X32+13.234 8 X42+7.778 2 X1X2-105.005 2 X1X3-2.222 3 X1X4+27.223 6 X2X3+91.115 7 X2X4-23.890 1 X3X4。全株鲜质量产量大于3 500 kg/667 m2时的农艺措施优化组合方案为:播种密度为9.89~11.32 kg/667 m^2,播种期为10月24—26日,收割期为4月13—18日,氮肥用量为10.83~16.71 kg/667 m^2。在4个参试因素中,播种期对全株鲜质量产量的影响最大,其次是播种密度,氮肥施用量对全株鲜质量产量的影响最小。Aiming to determine appropriate harvest dates and to optimize the cultivation mode of the newly bred silage feeding barley cultivar"Chuannongsimai 1",this study assessed the effects of four variables(X1,seeding density;X2,sowing date;X3,harvest date,and X4,nitrogen application rate)on the fresh weight yield of the whole plant of this cultivar grown in Chengdu City,Sichuan Province,China.The study adopted the second order regression current rotation design,testing each variable at five levels.The mathematical regression model,in which the fresh weight yield(Y,kg/667 m^2)is the objective function,is as follows:Y=2172.172 1+104.449 7X1-276.310 1X2-76.485 3X3-64.818 1X4+3.789 9X12+42.680 7X22-5.377 3X32+13.234 8X42+7.778 2X1X2-105.005 2X1X3-2.222 3X1X4+27.223 6X2X3+91.115 7X2X4-23.890 1X3X4.As a result,when the fresh weight yield of whole plant was>3500 kg/667m^2,the optimal combination of agronomic measures was as follows:the seeding density of 9.89~11.32 kg/667 m^2,the sowing dates being during October 24-26,the harvest dates being during April 13-18,and nitrogen fertilizer application rate at 10.83~16.71 kg/667 m^2.Among the four variables,sowing date had the greatest impact on the fresh weight yield of whole plant,followed by seeding density,while nitrogen fertilizer application rate had the smallest effect on it.These results are instrumental in establishing standard cultivation techniques for this cultivar.

关 键 词：饲料大麦 川农饲麦1号 青贮 栽培技术 

分 类 号：S512.32[农业科学—作物学] S31