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涝渍害是影响我省徐淮地区夏玉米产量的主要逆境因素。为了从栽培措施上探讨不同耕作方式、不同播期和苗期不同施肥水平对减轻夏玉米涝渍危害的效应,为防御或减轻涝渍危害提供依据,特进行本试验。 材料和方法 试验在徐州铜山花碱土试验站进行。土壤为黄泛平原砂壤土,前茬为蔬菜。试验采用三因素裂区设计。(1)主区为畦作(A_1)、平作(A_2);(2)裂区为苗期(可见叶5～6叶)亩施尿素15公斤(B_1)、10公斤(B_2)、5公斤(B_3)和不施肥(B_4)四个水平;(3)裂裂区为
Waterlogging and waterlogging is the main factor that affects the yield of summer maize in Xuhuai area. In order to explore the effects of different tillage methods, different sowing dates and seedling stage fertilization levels on alleviating the damage of summer maize waterlogging from the cultivation measures, provide the basis for the prevention or reduction of waterlogging damage hazards, especially for this experiment. Materials and Methods The experiment was carried out in Xuzhou Copper Hill Alkali Soil Experimental Station. The soil is yellow pan-plains sandy loam, the former crop is vegetable. The test uses three factor cracking design. (2) The split zone is 15 kg urea (B_1), 10 kg urea (B_2) and 5 kg (B_3) and no fertilization (B_4) four levels;