黄、红麻是短日照作物。由低纬度向高纬度引种栽培,由于日照延长,气温较低,一般表现生育期延长,株高、茎粗、皮厚,纤维产量能显著增加。因此,“南种北栽”是提高红、黄麻单位面积产量的有效措施之一。可是,将广东、广西(北纬21°—25°左右)的晚熟黄、红麻种子引入我县(北纬31°19′)种植,增产效果虽然显著,但由于表现极晚熟,在本县收获不到成熟的种子, Yellow, kenaf are short-day crops. The introduction and cultivation from low latitudes to high latitudes, due to prolonged sunshine, the temperature is low, the general performance of the growing period, plant height, stem diameter, thickness, fiber yield can be significantly increased. Therefore, “south planted north” is to improve red, jute yield per unit area of ​​effective measures. However, the introduction of late-maturing yellow and kenaf seeds from Guangdong and Guangxi (latitude 21 ° -25 ° north latitude) into my county (latitude 31 ° 19 ’) increased yield significantly, but due to extremely late-maturing performance, harvest in this county was not To mature seeds,