玉米施肥方式的优化研究

以先玉335为试验材料,研究不同施肥方式对玉米生育进程、植株性状、籽粒和秸秆产量的影响。结果表明:习惯性施肥和玉米专用肥的施肥方式比对照提前2 d成熟,控释肥和高氮复合肥比对照提前1 d成熟;玉米专用肥分别在穗长、穗粗、株高、穗上叶方面表现最好,其次是高氮复合肥;习惯施肥穗位高最低;高氮复合肥茎粗最粗,其次是控释肥;高氮复合肥秃尖最小;农民习惯施肥处理籽粒和秸秆产量最高。

Optimization on Fertilizer Application Patterns of Maize

Field experiment with Xianyu 335 was carried out in order to study the effects of different fertilizer application patterns on maize growth advancement, plant characters, the yield of kernel and straw. The results showed that the patterns of routine fertilizer application and mazie specialty fertilizer matured two days earlier than the CK. The patterns of control sustained-release fertilizer and high nitrogen compound fertilizer matured 1 day earlier than the CK. Mazie specialty fertilize showed the best effect on ear length, ear diameter, plant height, leaf upon ear separately, the next was high nitrogen compound fertilizer. The pattern of routine fertilizer application had the lowest ear height, nitrogen compound fertilizer had the biggest ear diameter, the next was control sustained-release fertilizer. High nitrogen compound fertilizer showed the least ear barren tip. The pat- tern of routine fertilizer application showed the highest yield of kernel and straw.