不同质地土壤对高油玉米产量和品质的影响

采用池栽的方式研究了粘土、壤土、沙土3种质地土壤对高油玉米产量和品质的影响。结果表明:3种质地土壤高油玉米子粒干物质积累动态在灌浆过程中基本相似,而在吐丝35d后差异明显,壤土质地的玉米子粒油分和蛋白质含量较粘土和沙土分别提高8.92%和10.23%,而粘土上玉米子粒产量最高,达176.5g/穗,较壤土和沙土分别提高16.77%和52.63%;油分、蛋白质、淀粉与子粒产量表现趋势相同,表现为粘土>壤土>沙土。高油玉米适宜在粘土上种植。

Effects of Different Soil Texture on the Yield and Quality of High-oil Corn

High-oil corn was planted in containers with a volume of 1m×1m×1m, in which different textural soils including clay, loam and sandy were filled as the natural status. The effects of soil textural on the yield and quality of high-oil corn were studied. The results showed that there were significant differences on the dynamic of grain dry matter accumulation after 35 days after silking stage in three soil textural, while there was similarity before 35 days after silking stage. The contents of protein and oil of kernel in the loam was improved by 8.92% and 10.23% than that of kernel in the clay and sandy, respectively, while among three soil textural, the yield in the clay was the highest with 176.5 g/ear, and was improved by 16.77% and 52.63% than that of loam and sandy. The trend of output of oil, protein and starch was similar to that of grain, shown as Clay >Loam >Sandy. Therefore, the author believed that high-oil corn was suitable in the clay.