抗旱保水剂不同施用方法对甘蔗萌芽和分蘖的影响

Effect of Different Application Methods of Water Retaining Agent on Sugarcane Germination and Tillering

以桂糖43号为材料,采用干施、先施、施胶体3种施用方法施用抗旱保水剂进行田间比较试验,分析其对甘蔗萌芽与分蘖的影响,为甘蔗抗旱栽培技术提供参考依据。结果表明:不同施用方法对甘蔗萌芽出苗和分蘖的影响不同,胶体施法的萌芽率、分蘖率比先施法和干施法高,与干施法差异达显著水平。胶体施法可以促进甘蔗萌芽出苗和甘蔗早生快发,只要水源充足,建议用胶体施法效果最好;而先施法宜在没有水源的山坡、丘陵旱地应用;干施法对甘蔗萌芽出苗有影响,建议在甘蔗小培土或大培土时应用。

The sugarcane variety GT43 was as the planting material, and three application methods of water retaining agent [dry application （A）, early application （B） and colloid application （C）] were used to analysed the effect of different application methods on sugarcane germination and tillering in field experiment. The results showed that there were significant different effects between three application methods on sugarcane germination, shooting and tillering. The germination rate and tillering rate in the treatment of colloid application was higher than that in the treatment of early application and dry application. The both colloid application could promote the germinating, shooting, and sprout sooner in sugarcane growth, and it was suitable in water resources rich region. The early application was suitable in hill or hilly dryland, and the dry application was suitable in sugarcane earth up condition because it had a negative influence on sugarcane germinating and shooting.