不同播种密度和肥料处理对青稞产量及农艺性状的影响  

Effects of Different Planting Density and Fertilizer Treatment on Barley Yield and Agronomic Characters

作　　者：危文波 扎西罗布[1] 甘雅文[1] 刘仁建[1] 达娃[1] 德青卓嘎 WEI Wenbo;Zhaxiluobu;GAN Yawen;LIU Renjian;Dawa;Deqingzhuoga(State Key Laboratory of Barley and Yak Germplasm Resources and Genetic Improvement/Institute of Agriculture,Tibet Academy of Agriculture and Arimal Hwsbandry Science,Tibet Lhasa 850032,China)

机构地区：[1]省部共建青稞和牦牛种质资源与遗传改良国家重点实验室/西藏自治区农牧科学院农业研究所,西藏拉萨850032

出　　处：《西藏农业科技》2022年第3期18-20,共3页Tibet Journal of Agricultural Sciences

基　　金：西藏油菜“三系”配套与作物绿色高效栽培技术研究项目(XZ-2019-NK-NS-007)。

摘　　要：以“藏青2000”和“藏青17”2个青稞品种为材料,研究不同播种密度和肥料处理及其互作对青稞产量及农艺性状的影响。结果表明:在不同处理条件下,“藏青2000”的株高、穗粒数、千粒质量、每667 m2穗数和产量均呈现先增后减的趋势;而“藏青17”的千粒质量、每667 m^(2)穗数和折合每667 m^(2)产量在处理T6时最高,株高和穗粒数在处理T8时最高。从节约成本和保护环境的角度出发,确定T2处理即播量14.00 kg/667 m2,且施入羊粪375.00 kg/667 m^(2)、尿素8.20 kg/667 m^(2)、磷酸二铵7.40 kg/667 m^(2)、氯化钾2.20 kg/667 m^(2)最适宜“藏青2000”的种植密度和肥料水平,确定处理T6即播量14.00 kg/667 m^(2),且施入羊粪225.00 kg/667 m^(2)、尿素5.40 kg/667 m^(2)、磷酸二铵4.40 kg/667 m^(2)、氯化钾1.40 kg/667 m^(2)最适宜“藏青17”。The effects of different planting density,fertilizer treatment and their interaction on the yield and agronomic traits of two highland barley varieties were studied.The results showed that plant height,grain number per ear,1000-grain weight,ear number per mu and yield of ’Zangqing 2000’increased first and then decreased under different treatment conditions.In addition,the 1000-grain weight,panicle number per mu and yield per mu of ’Zangqing 17’ were the highest in treatment T6,while plant height and panicle number were the highest in treatment T8.From the perspective of cost saving and environmental protection,the optimal planting density and fertilizer level of ’Zangqing2000’ were determined for T2 treatment,namely,14.00 kg/667 m^(2) of sowing amount,375.00 kg/667 m^(2) of sheep manure,8.20 kg/667 m^(2) of urea,7.40 kg/667 m^(2) of di amonium phosphate and 2.20 kg/667 m^(2) of potassium chloride.The treatment T6,namely the sowing amount of 14.00 kg/667 m^(2),and the application of sheep manure 225.00 kg/667 m^(2),urea 5.40 kg/667 m^(2),diammonium phosphate 4.40 kg/667 m^(2),potassium chloride 1.40 kg/667 m^(2) was the most suitable for ’Zangqing’ 17.

关 键 词：青稞 播种密度 肥料 产量 农艺性状 

分 类 号：S512.3[农业科学—作物学]