保氮增效剂调节氮肥施用量和利用率研究——Ⅰ.保氮增效剂在玉米生产中的应用效果

Study on Ammonia-Fixing Syhergist Regulating Fertilization Quantities and Utilization Ratio of Nitrigenous Fertilizer I.Use Effects of Ammonia-flxing Synergist in Cultivating.

田间试验和示范表明,在玉米作物生产中施用兼具多元素复合和氮肥加价作用的保氮增效剂,可显著地改善植株性状,促果穗增长增粗,使秃尖率下降、穗粒数和百粒重增加。保氮增效剂用量为玉米施氮肥量的2.92%～4.99%,玉米增产51.5～68.4kg/亩。肥料报酬提高2.2～2.6倍,增收经济效益达34.1～44.7元/亩。

The ammonia-fixing synergist has the function of complex miesoelements and prenium to nitrigen fertilizer carrier.It is able to make plant flourshing,lengthen ear,enlarge ear width,decrease non-grain part in ear top, and increase grain number per ear and 100-kernai weight in cultivating corn.It is suitable that supplying ammo- nia-fixing synergist is 2.92-4.99 portion per 100 pertion ammonium bicarbonate or urea.Under the suitable quanlities and ratio,the ammonia-fixing synergist goes up by corn grains of 51.5-68.4kg/mu,increased corn output of 2.2-2.6 times per kg NH_4HCO_3and a rise in value of 34.1-44.7 yuan/mu.