特产研究2026，Vol.48Issue(4)：59-64,6.DOI:10.16720/j.cnki.tcyj.2026.136
秸秆还田下减量施肥对'齐黄34'大豆光合特性及产量的影响
Effects of Reduced Fertilization under Straw Returning on the Photosyn-thetic Characteristics and Yield of'Qihuang 34'Soybean
摘要
Abstract
To explore the regulatory effect of reduced fertilizer application under the straw return on the photosynthetic characteristics and yield of soybeans,'Qihuang 34'was selected as the experimental materials.Five experimental treatments in field were set up,including con-trol group(CK):no straw return farming was implemented,and only the conventional fertilizer dosage was applied;treatment group 1(T1):straw return was implemented,while the conventional fertilizer dosage was maintained;treatment group 2(T2):straw return was imple-mented,and the fertilizer dosage was adjusted to 80％of the conventional dosage;treatment group 3(T3):straw return was implemented,and the fertilizer dosage was adjusted to 60％of the conventional dosage;treatment group 4(T4):straw return was implemented,and the fertilizer dosage was adjusted to 40％of the conventional dosage.The effects of different treatments on the photosynthetic characteristics and yield of soybeans were systematically analyzed.The results showed that Pn,Gs,and Tr of soybeans"first increased and then decreased"with the growth period,reaching the peak at the podding stage;Ci"first decreased then increased",and reached the lowest value at the po-dding stage.T1 to T4 treatments had significantly higher Pn,Gs,and Tr than CK,and Ci was significantly lower than CK(P＜0.05);T2 treatment performed the best,Pn,Gs,Tr,and Ci of 23.65 μmol/(m2.s),0.48 μmol/(m2·s),26.58 mmol/(m2.s),and 256.65 μmol/mol at the podding stage,respectively,showing significant increases compared to the corresponding indicators of CK.T1 to T4 had significantly higher indicators such as per plant pod number,per plant pod weight,per plant seed number,per plant seed weight,hundred seed weight,and yield than CK(P＜0.05),and T2 treatment had the highest yield.The results indicate that straw return combined with 20％reduction in chemical fertilizer is the optimal fertilization mode,which can synergistically enhance photosynthetic efficiency and yield,thereby achieving the goal of reducing fertilizer application while increasing efficiency.关键词
秸秆还田/减量施肥/'齐黄34'/光合特性/大豆产量Key words
returning straw to the field/reduce fertilization/'Qihuang 34'/photosynthetic characteristics/soybean output分类
农业科技引用本文复制引用
崔明俊,赵德岭,刘华君,胡家祥,张树珍,陈晓蕾..秸秆还田下减量施肥对'齐黄34'大豆光合特性及产量的影响[J].特产研究,2026,48(4):59-64,6.基金项目
农业农村部"十四五"国家科技支撑计划重点课题(NYKJ12105) （NYKJ12105）
