控释肥对甘蔗生长的影响和效益分析

The analysis of the growth effect and economic benefit by sugarcane fertilizer controlling and release

【目的】为探讨甘蔗施用控释肥的效果,确定其适宜的施用量和施用方式。【方法】以常规肥作对照,通过大田试验,探讨在相同养分不同施肥方式下,控释肥对甘蔗农艺性状以及产量的影响。【结果】控释肥对甘蔗的出苗率、分蘖率、茎径和有效茎数的影响与常规施肥相比无显著差异,而甘蔗追肥时控释肥和常规肥搭配施用,能促进甘蔗生长,显著增加株高;【结论】甘蔗基肥施常规肥(全年施肥总养分的20%),追肥时施常规肥(总养分的20%)和控释肥(总养分的60%)的施肥方式最佳,能显著增加甘蔗株高和产量,能最大限度的增加纯收益。

[ Objective ]In order to study the effect by sugarcane fertilizer controlling and release, ensure the appropriate content and application.[ Method ]Conducted field experiment, applying conventional fertilizer as control group, study the condition under the same nutrient while applying different fertilization method, the effects of sugarcane agronomic traits and yield by controlling and release fertilizer; [ Results ]The test results show that, compare with conventional fertilization, there is no significant difference for the percentage of seedling emergence, tillering, stem diameter and the effective tiller number by controlling and release fertil- izer, while in the stage of additional fertilizer, applying collocation of controlling and release fertilizer and conventional fertilizer, can promote the growth of sugarcane, which significant increase the plant height; [ Conclusion ]The fertilizer application method for sugarcane is as follows：in the stage of base fertilizer application, applying conventional fertilizer （20% of the total nutrient fertilizer throughout the year）, in the stage of additional fertilizer, applying collocation of conventional fertilizer （20% of the total nutrient） and controlling and release fertilizer （60% of the total nutrient fertilization） is the best way, which can significantly increase the plant height and yield, maximum increase the net benefits.