不同处理对八宿农家甜荞品种的农艺性状及产量的影响

Effects of Different Treatments on Agronomic Traits and Yield of Buckwheat Varieties in Baxoi County

在西藏自治区农业所4号试验地研究了西藏昌都市八宿县甜荞麦品种在不同的种植密度下甜荞麦农艺性状及产量表现。结果表明,不同种植密度对甜荞麦农艺性状没有显著影响,株高、主茎节数、主茎分枝、单珠粒数、单株粒质量、千粒质量存在显著性差异,但在不同种植密度下均无显著性差异;当氮肥施量从0 g/667 m^(2)增加到75 g/667 m^(2),产量随之增加;密度为150 g/667 m^(2)时,产量最高;当肥施量为225 g/667 m^(2)时,因为小区严重倒伏,产量反而降低。

At No.4 experimental site of Institute of agriculture research in Tibet Autonomous Region,the agronomic characteristics and yield perfor-mance of common buckwheat varieties at different planting densities in Baxoi County were studied.The results showed that different planting density had no significant impact on the agronomic characteristics of common buckwheat,and there are significant differences in plant height,number of main stem nodes,main stem branches,single grain number,single plant grain weight and thousand grain weight.When the amount of nitrogen fertil-izer application increases from 0 g/667 m^(2) to 75 g/667 m^(2),the yield increases.When the density is 150 g/667 m^(2),the output reaches the highest.When the amount of nitrogen fertilizer application is 225 g/667 m^(2),the output decreases due to the serious lodging.