机构地区:[1]中国农业科学院甘蔗研究中心 [2]广西农业科学院甘蔗研究所,南宁530007
出 处:《南方农业学报》2011年第9期1100-1103,共4页Journal of Southern Agriculture
基 金:广西农业科学院科技发展基金项目(201005);广西农业科学院甘蔗研究所基本科研业务专项项目(G2010013;G2008010)
摘 要:【目的】对广西甘蔗研究所研制的30%N-B多元素甘蔗专用杀虫复合肥进行对比试验,研究其对甘蔗生长的影响,筛选出既能促进甘蔗生长又能有效防治甘蔗螟虫的多功能复合肥。【方法】按氮、磷、钾三要素相等设4个处理,分别是A":丰岭牌"30%N-B多元素甘蔗专用杀虫复合肥单施;B":丰岭牌"25%N-B多元素甘蔗专用复合肥加施呋喃丹;C":丰岭牌"25%N-B多元素甘蔗专用复合肥单施;D:尿素、钙镁磷肥、硫酸钾配施。在甘蔗生长过程调查出苗率、分蘖率、生长速度、虫害情况;收获期调查株高、茎径、有效茎数,分析甘蔗品质,并验收产量。【结果】处理A出苗率较高,其次为处理B,处理C、D出苗率较低。分蘖率方面,处理A前期较多,后期较少;而处理C、D则是前期较少,后期较多。与其他处理相比,处理A在9月前及10、11月株高长速均较快。处理A实收产量71565kg/ha,比处理B、C、D分别增产8595、11700和11835kg/ha。处理A、B对螟虫具有良好的防治效果,其中处理A的效果优于处理B。4个处理对甘蔗品质的影响差异不大。处理A农业效益达6756.45元/ha,比处理B、C、D分别增加2661.30、2949.00和2885.55元/ha,工业效益达13883.55元/ha,比处理B、C、D分别增加1478.7、1839.00和2805.45元/ha。【结论】30%N-B多元素甘蔗专用杀虫复合肥能有效控制甘蔗螟虫的危害,且可促进甘蔗早分蘖,提高成茎率,增加有效茎,促进蔗株伸长,增加单茎重,从而显著增加甘蔗产量,提高其经济效益。【Objective】N-B multi-element sugarcane-used insecticidal compound fertilizer (N-B MSICF) was devel- oped by Guangxi Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences (China). A field experiment was carried out to study the effects of different N-B MSICF concentrations on seedling growth and control of sugarcane borer. 【Method】The treatments used in the experiment were:(A) 30% N-B MSICF; (B) 25% N-B MSICF+ carbofuran; (C) 25% N-B MSICF; (D) urea + calcium magnesium phosphate + potassium sulphate. The N, P and K contents were equal in all treatments. The sprouting rate, tillering rate, growth rate and insect pest incidences were investigated during process of sugarcane growth stage and the plant height, stem diameter, number of productive tiller, sugarcane quality and yield were measured at harvesting stage. 【Result】The highest sprouting rate was found in treatment A, followed by treatment B, C and D. In treatment A, the tillering rate was found high initially which slowed down later. While in C and D treatments, the tillering rate was lower initially and became higher later. The growth rate of sugarcane plant was highest in treatment A before September and in October and November. The sugarcane yield in treatment A was recorded as 71565 kg/ha which was found to increased by 8595, 11700 and 11835 kg/ha over treatment B, C and D, respectively. Treatment A and B were found to effectively control sugarcane borer and effect of treatment A was more pronounced than B. The quality of sugarcane in the 4 treatments did not showed any significant differences. The agricultural economic benefit from sugarcane was 6756.45 Yuan/ha in treatment A, which was 2661.30, 2949.00 and 2885.55 Yuan/ha higher than treatment B, C and D, respectively. The industrial economic benefit of sugarcane reached 13883.55 Yuan/ha in treatment A, 1478.70, 1839.00 and 2805.45 Yuan/ha higher than B, C and D, respectively. 【Conclusion】The use of N-B MSICF @ 30% concentration was proved
分 类 号:S566.106.2[农业科学—作物学]
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