近十来年,本省大面积应用的“粤园5号”和“青皮3号”迟熟品种,对麻皮产量的提高的确起了不少作用。然而这是在充分满足它们的生长期条件下实现的,所花的代价是较大的。首先,迟熟品种在浙江不能留种,每年需从南方几省购买种子,花费的精力和物力较大,其次是由于收麻较迟,限制了麻区多熟制的发展。因此,在经济效益上是否合算,很值 In the past ten years, the large-scale application of “Yueyuan 5” and “Qingpi 3” late-maturing varieties in the province has played a significant role in raising the yield of hemp bark. However, this is achieved in full satisfaction of their growth period, at a greater cost. First of all, late-maturing varieties can not be planted in Zhejiang. Each year, they need to purchase seeds from several southern provinces, spending more energy and material resources. Second, due to the delayed harvest, the development of multi-cooked systems in the area is limited. Therefore, whether it is cost-effective, it is value