能源植物菊芋在松嫩盐碱地区的栽培试验研究

Cultivation Experiments of Energy Plant Helianthus tubrosus in Saline-Alkali Area of Songnen Plain

为探求能源植物菊芋在盐碱地栽培的发展前景,选取栽培菊芋和野生菊芋2份试验材料在松嫩盐碱地上进行了施肥、割草、重度盐碱胁迫及土壤不同开垦年限的处理研究。结果表明:这2份材料均可在中度盐碱地上正常生长和繁殖,施肥、割草对菊芋的生长有促进作用,重度盐碱胁迫会降低菊芋的出苗率,野生菊芋对重度盐碱胁迫表现出更好的抗性,栽培菊芋在中度盐碱地上产量可达到30 000kg.hm-2以上。通过试验表明菊芋是适合在松嫩盐碱地上发展的优良能源植物。

To explore the development prospect of energy plant Helianthus tuberosus in salinealkali area, two test materialscultivated and wild Helianthus tuberosus were cultivated in Songnen Plain for experiments and study,which include treatments of fertilization,mowing, heavy salinealkali stress and soils with different plo wing years. The results showed that the two species both could grow and propagate normally in moderate sa linealkali land. Fertilization and mowing were beneficial for growing of Helianthus tuberosus. Heavy salineal kali stress would decrease emergency rate of Helianthus tuberosusseedling. The wild species showed better re sistance under heavy salinealkali stress. The yield of cultivated species could reach more than 30 000 kg. hm2 in moderate salinealkali land. In conclusion, Helianthus tuberosus was an excellent energy plant fitting for cul tivating in Songnen Plain.