控灌改良对黄河三角洲盐碱地玉米生长与产量的影响研究

本文以黄河三角洲盐碱地玉米为研究对象,利用黄河泥沙对盐碱地进行改良试验,分析不同黄河泥沙施用量和不同灌水量水平对玉米株高、叶面积、干物质量和产量的影响,探讨适宜的泥沙施用量和灌水量。结果表明：玉米的生长和产量都随着泥沙施用量和灌水量的增加而增大,泥沙施用量均大于灌水量对其的影响。株高、叶面积指数、干物质量产量均在在泥沙施用量为6cm,灌水量为150mm处理最大,干物质积累量在成熟期最大为20460kg/hm_²；夏玉米产量最大为11220kg/hm_²。

Study on Growth and Yield of Summer Corn in Saline-alkali Land of the Yellow River Delta under Controlling Irrigation and Improving Soil

Field research was carried out on the effects of sediment application and irrigation of the Yellow River on the growth and yield of summer corn t in the saline-alkali land of the Yellow River Delta. Relationship between different sediment application dosage and irrigation amount on the plant height, leaf area, dry matter accumulation and yield of summer corn were discussed. Results showed that the growth and yield of summer corn increased with the enhancement of sediment application dosage and irrigation amount, and the impacts of sediment application dosage were greater than the irrigation amount. Plant height ,leaf area index, dry matter accumulation and yield reach the maximum with 6cm sediment application amount and 150mm irrigation amount; dry matter accumulation was the maximum at mature stage(20460kg/hm_²) ; and the maximum yield of summer corn was 11220kg/hm_².