Tehnički vjesnik, Vol. 33 No. 4, 2026.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20260330003495
The Effects of Different Water Deficit and Rehydration on Soybean Soil Enzyme Activity and Soil Available Nutrients During the Grain Filling Stage
Chen Wang
; College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
Mengxue Wang
; College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
*
Changzhi Liang
; College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
Siyuan Teng
; College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
Yuxian Zhang
; National Engineering Research Center of Coarse Grain Technology, Daqing 163319, China
Mingcong Zhang
; College of Agronomy, Heilongjiang Bayi Agricultural University, Daqing 163319, China
* Dopisni autor.
Sažetak
To investigate the effects of different degrees of water deficit during the grain filling stage on soybean soil enzyme activity and nutrients, drought sensitive soybean Suinong 26 was used as the material. A pot experiment was conducted using four water gradients: soil moisture content of 70% ± 5% of field capacity (normal irrigation, CK), 60% ± 5% (mild water deficit, T1), 50% ± 5% (moderate water deficit, T2), and 40% ± 5% (severe water deficit, T3). Soil enzyme activity and available nutrients were measured. The results indicate that mild water deficit treatment in R5 stage can effectively promote soil enzyme activity and change the soil microenvironment. With the extension of water control time and the deepening of water control degree, soil available nutrients and soil enzyme activity significantly decrease. The activities of urease, alkaline phosphatase, sucrase, and available nutrients in the soil treated with T1 after rehydration were significantly increased compared to the water control period, while the activity of catalase did not change significantly throughout the entire treatment period. These findings indicate that mild water deficit treatment optimizes soil biological fertility during critical reproductive stages.
Ključne riječi
compensatory effect; soil enzymes; soybeans; water stress
Hrčak ID:
348716
URI
Datum izdavanja:
30.6.2026.
Posjeta: 0 *