摘要
为了研究沼渣做基肥,沼液浸种及不同浓度的追肥对玉米生长性状及产量的影响,试验共分5个处理,每个处理3个重复,每个重复22 m2,处理1是CK,处理2是底肥施化肥,追肥使用尿素进行,处理3,处理4,处理5均以沼渣基肥,分别使用30%,50%和70%沼液进行追肥,试验期间各组管理均相同。结果表明:施用沼渣做基肥,沼液浸种后,玉米前期发芽速度快,芽头粗壮且整齐,苗期营养生长旺盛,茎秆粗壮,叶片宽大,叶色深绿,后期果穗长且穗粗,穗行数和行粒数增多,秃顶长度降低,产量提高,显著提高玉米的出苗率和经济性状,其中施用沼渣4000kg·667m-2,沼液浸种24 h,沼液追肥喷施50%效果最好,应大力推广。
The biogas digestate was used as base fertilizer, seed soaking slurry and top fertilizer for maize in this study. Five treatments were designed each with 3 repetitions, and 22 m2 for each repetition. Treatment I was a control with clear water for seed salting and topdressing. TreatmentII adopted chemical fertilizer as the base fertilizer and with urea as top fertilizer. Test III, IV and the V treatments adopted biogas residue as the base fertilizer and with biogas slurry as top fertil- izer with biogas slurry concentration of 30% ,50% 和 70% respectively. The results showed that the application of biogas residue as base fertilizer and seed soaking with biogas slurry could make the maize sprouting faster, the bud grew thicker and orderliness, the seedling growth vigorous. And the corncobs were more and growth larger in the later growth period. The treatment with biogas application of 4000 kg · 667m^-1, seed soaking with hiogas slurry for 24h, and top addressing with biogas slurry concentration of 50%, had the best works.
出处
《中国沼气》
北大核心
2014年第2期52-55,共4页
China Biogas
关键词
沼液
沼渣
生长性状
产量
maize growth
biogas slurry
biogas residue
maize yield
