北方农业学报2025，Vol.53Issue(4)：88-98,11.DOI:10.12190/j.issn.2096-1197.2025.04.08
保水剂配施微生物菌剂对旱作大麦饲草产量、品质及土壤养分的影响
Effects of combined application of water-retaining agent and microbial agent on forage yield,quality,and soil nutrients of dryland barley
摘要
Abstract
[Objective]To analyze the effects of combined application of water-retaining agent and microbial agent on forage yield,quality,and soil nutrients of dryland barley in the semi-arid region of Inner Mongolia,thereby providing a theoretical foundation for efficient forage production.[Methods]Field experiments were conducted in Shangdu County,Inner Mongolia,from 2023 to 2024 using a randomized block design.Four treatments were established:microbial agent alone(A),water-retaining agent alone(B),combined application of water-retaining agent and microbial agent(AB),and a control without the application of a water-retaining agent and microbial agent(CK),to analyze the changes in forage yield,quality,and soil nutrients of dryland barley under different treatments.[Results]Fresh grass yield and hay yields of dryland barley ranked as AB＞A＞B＞CK.Two-year data showed that,compared with CK,the AB treatment increased crude protein content by 2.65-3.35 percentage points,crude fat content by 6.67-8.90 percentage points,and relative feed value by 6.21%-42.94%.All treatments improved soil nutrients to varying degrees.Compared with CK,A treatment,and B treatment,the AB treatment increased soil organic matter content by 5.82%-28.40%,total nitrogen content by 2.84%-43.72%,total phosphorus content by 2.63%-76.11%,total potassium content by-2.69%-14.17%,available nitrogen content by 11.83%-60.96%,available phosphorus content by 7.89%-31.88%,and available potassium content by 4.41%-20.34%.Correlation analysis indicated that soil organic matter,total nitrogen,total potassium,and available potassium were the main factors influencing hay yield of dryland barley,whereas soil total nitrogen,total potassium,and available nitrogen content were the main factors affecting forage quality of dryland barley.[Conclusion]Combined application of water-retaining agent and microbial agent enhances forage yield and quality of dryland barley and improves soil nutrients,warranting further promotion and validation in the semi-arid region of Inner Mongolia.关键词
保水剂/微生物菌剂/旱作大麦/饲草品质/土壤养分Key words
Water-retaining agent/Microbial agent/Dryland barley/Forage quality/Soil nutrients分类
农业科技引用本文复制引用
渠佳慧,巴图,徐广祥,温瑞强,彭晓光,吕二锁,马宇,李涛,刘志萍..保水剂配施微生物菌剂对旱作大麦饲草产量、品质及土壤养分的影响[J].北方农业学报,2025,53(4):88-98,11.基金项目
国家重点研发计划商都县优势产业关键技术研究与示范项目(2022YFD1601201) （2022YFD1601201）
内蒙古自治区2023年度引进人才科研启动支持项目(RO2400002408) （RO2400002408）
