天津农业科学2025，Vol.31Issue(3)：56-62,7.DOI:10.3969/j.issn.1006-6500.2025.03.009
化肥配施腐殖酸对"非粮化"复垦耕地水稻产量和土壤养分的影响
The Effect of Fertilizer Combined with Humic Acid on Rice Yield and Soil Nutrients in"Non-grain"Re-claimed Farmland
摘要
Abstract
To investigate the effects of different dosages of humic acid combined with chemical fertilizers on soil fertility and rice growth in reclaimed farmland,field experiments were conducted.Conventional fertilization(CK)and four dosages of humic acid(450,600,750,900 kg·hm-2)combined with chemical fertilizers were set up for treatment.The soil nutrients,enzyme activity,rice yield and its constituent factors,and nutrient absorption of different treatments were analyzed.The results showed that the application of 600-900 kg·hm-2 humic acid significantly increased yield by 6.27%-14.21%.The total nitrogen,total phosphorus,and total potassi-um absorption significantly increased by 11.34%-13.91%,23.51%-34.31%,and 11.34%-34.21%,respectively.16%and 14.08%-17.80%,pH,Effective phosphorus,organic matter,alkaline hydrolyzable nitrogen,and available potassium significantly increased by 2.92%-4.20%,10.23%-18.92%,39.11%-57.14%,10.28%-16.84%,and 13.64%-30.63%,respectively.Bulk density significantly decreased by 9.15%-13.73%,and urease activities significantly increased by 58.49%-115.09%.Through membership function analysis,the highest score was obtained by adding 900 kg·hm-2 of humic acid,followed by conventional fertilization and 750 kg·hm-2 of humic acid.In conclusion,from an economic perspective,the highest yield is obtained by adding 750 kg·hm-2 of humic acid,which is more practical in actual agricultural production and can be recommended as a priority.关键词
水稻/腐殖酸/产量/土壤养分Key words
rice/humic acid,yield/soil nutrient分类
农业科技引用本文复制引用
沈杰,胡铁军..化肥配施腐殖酸对"非粮化"复垦耕地水稻产量和土壤养分的影响[J].天津农业科学,2025,31(3):56-62,7.基金项目
宁波市公益类项目(2023S127) （2023S127）
宁波市科技特派员项目(2024S215) （2024S215）
浙江省产业团队项目 （）
