生物质炭基肥对玉米生长发育及产量的影响

为促进作物生长,提高土壤保水保肥能力和肥料利用率,采用生物质炭与化肥配合制备生物质炭基肥,以常规施肥为对照,通过田间多重比较试验,研究不同处理的生物质炭基肥对玉米生长发育及产量的影响。结果表明:施用生物质炭基肥可有效促进玉米的生长发育,缩短生育周期,改善玉米产量性状,进而达到增加产量的目的。其中,A5处理试验效果最佳,生育周期缩短了7d、株高增加9.0cm、穗位高度提升2.6cm、穗长增加0.7cm、行粒数增加2.2粒、百粒重增加4.0g、玉米产量达14 924kg·hm~(-2),增产率为8.48%。

Effects of Biochar Base Fertilizers on Maize Growth and Yield

The biochar base fertilizers were prepared with chemical fertilizer and biochar to promote the growth of plant,improve the efficiency of the fertilizer and enhance the ability of water and nutrient conservation.Comparing to routine fertilization,the effects of biochar base fertilizers with different treatments on the growth and yield of maize were studied in plot experiments.The results showed that the biochar base fertilizers could promote the growth,shorten the growth cycle,better the yield characters and increase the yield of maize.The effects of A5 were the best of all traits.For A5 trait,the growth cycle was shortened by 7 days.The plant height,ear position height,ear length,kernel numbers per row and 100-grain weight of maize increased by 9.0 cm,2.6 cm,0.7 cm,2.2 and 4.0 g,respectively.The yield of maize attained 14 924 kg·hm-2,which increased by 8.48%.