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以西辽河平原地区主推品种伟科702为供试品种,通过2015、2016两年的田间试验,研究侧深施复合肥+硫包衣尿素(FS)、缓释肥+硫包衣尿素(HS)和常规施肥(CK)三种不同施肥方式下,春玉米干物质积累和转运变化规律。结果表明,缓释肥+硫包衣尿素处理,春玉米产量、器官干物质积累量及完熟期子粒干物质分配比例,均高于复合肥+硫包衣尿素处理和常规施肥方式;但转运率及子粒贡献率,均低于复合肥硫包衣尿素处理和常规施肥方式。缓释肥硫包衣尿素施肥及复合肥硫包衣尿素处理方式较常规施肥处理少追肥一次。综合考虑增产效果和成本因素,一次性侧深施缓释肥+硫包衣尿素,可作为研究地区玉米推荐施肥模式。
In the field of West Liaohe Plain, the main variety Vickers 702 was used as tested varieties. Through field tests in 2015 and 2016, the effect of deep-side compound fertilizer + sulfur-coated urea (FS), slow-release fertilizer + sulfur coated urea (HS) And conventional fertilization (CK) under three different fertilization methods, the spring maize dry matter accumulation and translocation rules. The results showed that the treatment of slow-release fertilizer + sulfur-coated urea, spring maize yield, dry matter accumulation of organs and dry matter partition ratio of maturing stage were higher than that of compound fertilizer + sulfur-coated urea treatment and conventional fertilization method. However, And seed contribution rate, were lower than the compound fertilizer sulfur coating urea treatment and conventional fertilization methods. Slow-release fertilizer sulfur coating urea fertilizer and compound fertilizer sulfur coating urea treatment less fertilizer than the conventional top dressing. Taking into account the yield-increasing effect and cost factors, one-time deep application of slow release fertilizer + sulfur coated urea can be used as a recommended fertilization model for maize in the study area.