冀北坝上地区荞麦品种的适宜播期分析

研究冀北坝上地区不同播期对荞麦品种农艺性状和产量的影响。选用甜荞品种日本大粒和苦荞品种冀苦荞1号2个荞麦品种,设5月11日（B1）、5月18日（B2）、5月25日（B3）、6月2日（B4）、6月9日（B5）5个播期,对2个品种进行连续3年（2013-2015年）播种试验。试验结果表明,播期对甜荞日本大粒和冀苦荞1号的农艺性状和产量都有一定影响,综合评价确定日本大粒和冀苦荞1号在冀北坝上地区的最适播期均为5月中下旬（5月11日-5月25日）。

Analysis of Suitable Sowing Date for Buckwheat Varieties in Bashang Area of Northern Hebei

To study the effect of different sowing dates on agronomic traits and yield in buckwheat, two buckwheat cultivars, Jikuqiao No.1 (tartary buckwheat variety) and Ribendali (sweet buckwheat variety) in Bashang area of northern Hebei, were studied. Five sowing dates were designed with 11 May (B1), 18 May (B2), 25 May (B3), 2 June (B4) and 9 June (B5) in three years (2013-2015) continuously in Bashang area, northern Hebei province. Agronomic traits and yields of the two buckwheat varieties sowed on different dates were studied. The results showed that different sowing dates had influences on the agronomic traits and yields of Ribendali and Jikuqiao No.1. Based on our results, it can be concluded that the most suitable sowing dates for Ribendali and Jikuqiao No.1 are in mid-late May (11 May-25 May).