有机肥对夏玉米生长发育和土壤肥力的影响

Effects of Bio-organic Fertilizer on Summer Maize Growth and Soil Fertility

采用田间小区试验,设置常规施肥(T_1)、生物有机肥与化肥配施(T_2和T_3)、生物有机肥基质与化肥配施(T_4和T_5)、空白对照(T_6)等6个处理,研究商洛低山丘陵区生物有机肥对夏玉米生长发育和土壤肥力的影响。结果表明:与空白对照相比,施用有机肥处理下的株高、茎直径、产量、土壤有机质、碱解氮、速效磷和速效钾含量有不同程度地增加;空杆率、倒伏率、大斑病和土壤pH有所下降;与生物有机肥基质处理相比,对应的生物有机肥处理可进一步改善农艺性状,提高夏玉米产量和土壤肥力。

Field experiment with 6 treatments, namely conventional fertilization （T1）, bio -organic fertilization＋ chemical fertilizer （T2 and T3）, bio-organic fertilizer substrates ＋chemical fertilizer （T4 and T5）, control （T6）, were conducted to study the effects of bio-organic fertilizer on summer maize growth and soil fertility. The results showed that, compared with the control, plant height, stem diameter, yield, soil organic matter, available nitrogen, available phosphorus and available potassium increased at different levels, while the empty plant percentage, lodging percentage, leaf blight and soil pH decreased. Compared with bioorganic fertilizer substrates treatment, corresponding bio -organic fertilizer treatments had a better agronomic characters, yield and soil fertility.