硫酸钾复合肥不同施用量对川蔗26号性状的影响

探讨45%硫酸钾型复合肥对川蔗26号性状的影响。采用不同施用量的该复合肥对川蔗26号施肥一年,评价其农艺性状,并测定甘蔗的产量与蔗糖分。根据甘蔗农艺性状的表现,该复合肥最优的施肥量为133.3 kg/667m2,其次为100.0 kg/667m2,而施肥量为66.6 kg/667m2和33.3 kg/667m2则表现一般。分析甘蔗产量发现,该复合肥能显著提高产量,在最优施肥量下产量提高了34.6%;而且,各施肥处理的蔗糖分均低于未施肥的对照处理。45%硫酸钾型复合肥能明显改善川蔗26号性状。

Effects of 45% Potassium Sulfate Compound Fertilizer on Traits of Chuanzhe 26

45% potassium sulfate compound fertilizer on traits of the sugarcanes Chuanzhe 26 was applied to test the effects with various amount of 45% potassium sulfate compound fertilizer for a year. The agronomic traits of the sugarcane, the yield and the sucrose content were evaluated. According to the agronomic traits, the optimal amount of applying the compound fertilizer was 133.3 kg/667m2, 100.0 kg/667m2, 66.7 kg/667m2 and 33.3 kg/ 667m2, respectively. The yield of the sugarcanes was significantly increased by applying the fertilizers. Under the optimal＂ level of the fertilizer, the yield was increased by 34.6%. Moreover, the sucrose content of sugarcanes in different treatments was total lower than that of non-fertilizer treatment. There was a significant improvement for the traits of Chuanzhe 26 by applying the 45% potassium sulfate compound fertilizer.