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四倍体荞麦是陕西省榆林农校选育的荞麦新品种,生育期短,抗旱、耐瘠,是理想的填闲、倒茬、以秋补夏、调剂粮食品种的好作物,1990年引入我市,试验、示范平均亩产214公斤,最高亩产253公斤,比当地普通荞麦增产15-25％,千粒重比普通荞麦高50％,达49-52克。该品种具有株形紧凑,茎秆粗壮,产量较高的特点,1992年天水市定为推广品种,当年推广种植面积2.1万亩,其中种子基地繁殖1.68万亩,生产种子154.7万公斤,可供34万多亩生产用种。1993年全市计划推广10万亩,现将种植丰产栽培技术简述如下。
Tetraploid buckwheat is a new buckwheat breeding in Yulin Agricultural School in Shaanxi Province. It has short growth period, drought resistance and barren resistance. It is an ideal plantation for reclamation and autumn, The average mu yield of 214 kilograms and the highest mu produce of 253 kilograms per mu were obtained from the cities, tests and demonstrations. The yield was 15-25% more than the ordinary buckwheat in the region. The grain weight was 50% higher than that of common buckwheat, reaching 49-52 grams. This variety has the characteristics of compact plant shape, thick stalk and high yield. In 1992, Tianshui City was designated as a popularized variety. In the same year, the planting area was 21,000 mu, of which 68,000 mu was seeding base and 1,547,000 kg seed was produced 340,000 mu of production of species. In 1993 the city plans to promote 100000 acres, planting cultivation techniques now outlined below.