湖北农业科学2026，Vol.65Issue(6)：20-25,6.DOI:10.14088/j.cnki.issn0439-8114.2026.06.004
海藻提取物配施液体肥对旱作玉米生长发育及产量的影响
Effects of seaweed extract combined with liquid fertilizer on growth and yield of dryland maize
摘要
Abstract
To promote the upgrading,popularization and application of water-fertilizer integrated fertilization schemes,a field experi-ment was conducted using spring maize(Zea mays L.)variety Dika 159 as the test material.Five treatments were arranged in a ran-domized complete block design:CK(conventional liquid fertilizer),T1(conventional liquid fertilizer+18 L/hm2 seaweed extract),T2(conventional liquid fertilizer+36 L/hm2 seaweed extract),T3(conventional liquid fertilizer+54 L/hm2 seaweed extract),and T4(conventional liquid fertilizer+72 L/hm2 seaweed extract).Root indices,plant height,stem diameter,leaf area,chlorophyll relative content(SPAD value),grain yield and its components were measured.The results showed that T3 performed the best in root parame-ters.Compared with CK,total root length,total root surface area and total root volume under T3 were significantly increased by 217.83％,123.91％and 68.65％,respectively.For plant growth,plant height,stem diameter,leaf area and SPAD value in T3 were improved by 7.09％,4.33％,6.13％and 8.36％,respectively,relative to CK.In terms of yield,T3 significantly increased grain yield by 13.16％and achieved the highest economic benefit with a 26.60％increase in net income compared with CK.In conclusion,the combined application of conventional liquid fertilizer and seaweed extract could significantly promote root development and plant growth of dryland maize,and ultimately enhance grain yield and economic benefits.The optimal application rate was 54 L/hm2 of sea-weed extract.关键词
海藻提取物/液体肥/旱作玉米(Zea mays L.)/生长发育/产量/农艺性状Key words
seaweed extract/liquid fertilizer/dryland maize(Zea mays L.)/growth/yield/agronomy traits分类
农业科技引用本文复制引用
张超一,纪元,刁红霞,宋海妹..海藻提取物配施液体肥对旱作玉米生长发育及产量的影响[J].湖北农业科学,2026,65(6):20-25,6.基金项目
山东省重点研发计划(科技示范工程)项目(2024SFGC0403) （科技示范工程）
