海藻生物刺激素在甘蔗生产上的应用研究

Study on the Application of Seaweed Biostimulant on Sugarcane Production

在粤西蔗区以粤糖09-13为供试品种进行田间试验,在甘蔗苗期和分蘖期叶面喷施海藻生物刺激素,研究海藻生物刺激素对甘蔗农艺性状、蔗产量、蔗糖分、甘蔗叶片抗旱性及甘蔗虫害相对防效的影响。结果表明:与对照处理相比,不同时期喷施海藻素均有利于增加甘蔗产量,提高理论产糖量,同时提高甘蔗叶片的保水能力,增加叶片含水量,从而降低干旱对叶片造成的伤害,提高甘蔗抗旱能力。对于甘蔗螟虫、蚜虫和蓟马均有不同程度的防治效果。施用海藻生物刺激素有利于提高甘蔗产值,增加经济效益。

The foliar application effects of seaweed biostimulant in seedling and tillering stage on sugarcane agronomic traits, sugarcane yield, sucrose, drought resistance of sugarcane leaves and relative pest control efficiency of sugarcane were studied in the field experiment with Yuetang09-13 as a test variety in Western Guangdong sugarcane region. The results showed that compared with the control treatment, seaweed biostimulant application in different periods was beneficial to increase sugarcane yield, theoretical sugar yield, water retention capacity of sugarcane leaves, and water content of sugarcane leaves, thereby reducing the damage caused by drought and improving the drought resistance of sugarcane. There were different control effects on sugarcane borers, aphids and thrips. The application of seaweed biostimulant is beneficial to increasing the output value of sugarcane and increasing economic benefits.