Effect of Soil Practice on Photosynthesis, Yield and Quality of Soyabean (<i>Glycine max</i> (L.) Merr.)

Abstract

The environmental factor determining the increase in soybean crops during the current climate changes is its adaptation to drought periods; therefore, in addition to conventional tillage (CT), no-till cultivation systems (RT, NT) are practiced in the cultivation of this species. A field experiment was conducted in 2017–2019 in Boguchwała, Poland. The test plant was soybean cv. Merlin. The experimental factors were three tillage systems (conventional—CT, reduced—RT, no-tillage—NT). The use of CT and RT influenced the increase of LAI and SPAD and stimulated the course of the photosynthesis process, which resulted in an increase in the values of Fv/F0 and PI parameters compared to NT. Soybean with CT yielded significantly higher than with NT, and seeds contained more protein. Fat and P content was significantly higher in NT and K in seeds from RT. Under extremely dry and dry conditions (June–September), in 2017 the seed yield in NT was similar to CT and significantly higher than in RT.

Keywords

• soil tillage
• LAI
• SPAD
• chlorophyll fluorescence
• yield
• chemical composition