不同肥料类型对苦荞生长及产量的影响

Effect of different fertilizer types on the growth and yield of tartary buckwheat

以苦荞品种‘西荞1号'为材料,研究了不同类型肥料处理对苦荞生长及产量的影响。结果表明:与不施肥相比,各处理均能显著增加苦荞株高和第一节间长,以A4处理的第一节间长最长,为2.1 cm,显著高于其他处理(A2除外)。除A3外,其他施肥处理均能显著增加苦荞的茎粗,但各施肥处理间差异不显著。不同的肥料处理对苦荞主茎节数没有明显的影响。除A1和A3处理外,其他施肥处理均能显著增加苦荞的总干物重,但苦荞干物质在各器官的积累量存在明显的差异。各施肥处理均能显著增加苦荞的产量,以A4处理最高,为2 508.4 kg/hm^2,显著高于A5、A6和CK处理。不同的肥料处理对单株粒数、有效株数和产量有明显的影响,但对千粒重影响不显著。

The effect of different fertilizer types application on the growth and yield of tartary buckwheat were studied taking the cultivar ＇ Xiqiao 1＇ as material.The results showed that the fertilizer application could improve the plant height and first internode length,compared with no fertilizer.The first internode length of A4 treatment was the longest,being 2.1 cm,which was significantly higher than other fertilizer application treatment,except A2 treatment.Fertilizer application（except A3 treatment） significantly increased the stem diameter of tartary buckwheat,but the difference was not significant among these treatments.The internode number of main stem had no obvious change under different treatments of fertilizer.Except Al and A3 treatment,fertilizer application significantly improved total dry matter weight of tartary buckwheat,but there was difference in the accumulation amount of dry matter in various organs（root,stem and leaf）.Different fertilizer types could increase the yield of tartary buckwheat,the yield of A4 treatment was the highest,being 2 508.4 kg/hm^2,which was significantly higher than A5,A6 and CK（no fertilizer） treatment respectively.Fertilizer application had obvious effect on the grain number per plant,efficient plants and yield,but there was no significant difference in 1 000-grain weight.