甜荞优良品种筛选及配套栽培技术研究

Study on selection and cultivation techniques of common buckwheat varieties

为找到适宜内蒙古东西部主产区种植的甜荞品种及其配套的栽培技术,设计品种、播期、播量、氮肥、磷肥、钾肥6个因素5水平多位级正交试验,2016—2017年在奈曼和固阳试验基地连续种植2年,结果表明:内蒙古东部区适宜种植的甜荞新品种为蒙1202-3,配套的栽培技术为播期6月29日,播量为45.0 kg/hm^2,氮肥为60.0 kg/hm^2,钾肥67.5 kg/hm^2。西部区适宜种植的甜荞品种为北早生,配套的栽培技术为播期5月23日,播量为45.0 kg/hm^2,氮肥为75.0 kg/hm^2,磷肥30.0 kg/hm^2,钾肥90.0 kg/hm^2,明确在6因素中影响甜荞产量的关键因素是播期,将气象因子与产量进行相关分析,得出相关系数最大的气象因子是积温。

In order to find common buckwheat varieties and their supporting cultivation techniques suitable for cultivation in the eastern and western Inner Mongolia,six factors including five variety, sowing date, seeding rate, nitrogen fertilizer, phosphate fertilizer and potassium fertilizer were designed at 5 level orthogonal experiment, the experiment was continued planting in Naiman and Guyang bases for 2 years,the results showed that new varieties suitable for planting in the eastern part of Inner Mongolia area was Mongolian 1202-3, The supporting cultivation technology was sowing date on June 29, and seeding amount was 45 kg/hm^2, nitrogen fertilizer was 60 kg/hm^2 and potassium fertilizer was 67.5 kg/hm^2. The common buckwheat varieties suitable for planting in western area is born in the North, and the supporting cultivation techniques was sowing date on May 23, sowing amount was 45 kg/hm^2,it need nitrogen fertilizer 75 kg/hm^2, phosphate fertilizer was 30 kg/hm^2, potassium fertilizer was 90 kg/hm^2,it is clear that the key factor influencing the yield of common buckwheat among the six factors is sowing date,the meteorological factor and yield show that meteorological factor with the largest correlation coefficient is accumulated temperature.