TY  - JOUR
AU  - Fan, Haobo
AU  - Wali, Farman
AU  - Hu, Pengjuan
AU  - Dong, Haixia
AU  - Li, Haiqiang
AU  - Liang, Dan
AU  - Shen, Jingru
AU  - Gao, Mingxia
AU  - Feng, Hao
AU  - Sun, Benhua
PY  - 2026
TI  - Sustainable phosphorus (P) management: Impact of low P input with enhancement measures on soil P fractions and crop yield performance on a calcareous soil
JO  - Journal of Integrative Agriculture (JIA)
SN  - 2095-3119
SP  - 290
EP  - 301
VL  - 25
IS  - 1
AB  - The continuous supply of phosphorus (P) is indispensable in crop production. However, P resources are non-renewable, and environmental concerns like eutrophication associated with its loss from agroecosystems make the sustainable management of P resources essential for ensuring global food security. This study was designed to reduce mineral P inputs through management practices. A field experiment comprising a wheat–maize rotation system was conducted in the Guanzhong Plain of Shaanxi Province, China from 2018–2023. The eight treatments included CK (without P), FP (conventional P application); RP (recommended P); RP80 (20% reduction in RP); SRP80 (20% reduction in RP with straw wrapping); ARP80 (20% reduction in RP with ammonium sulfate instead of urea); SARP80 (20% reduction in RP with straw wrapping and ammonium sulfate instead of urea); and SARP60 (40% reduction in RP with straw wrapping and ammonium sulfate instead of urea). Crop yield, P uptake, and P fertilizer use efficiency were measured during harvest and throughout the entire period of the study. At the end of the experiment, P fractions were estimated using the Tiessen-Moir P classification method. The results revealed that the grain yields of all the treatments except for RP80 were significantly increased compared to CK, with increases of 14.9–28.8%. Furthermore, agronomic efficiency, apparent P use efficiency, P recovery rate, and partial factor productivity were significantly improved for the treatments that received 20% less P with straw wrapping. Moreover, the enhancement measures significantly increased labile and moderately labile P in the soil. Therefore, straw wrapping with ammonium sulfate instead of urea is one of the most effective ways to reduce mineral P inputs while increasing the efficiency of P in wheat–maize rotation systems.
UR  - https://doi.org/10.1016/j.jia.2025.04.032
DO  - 10.1016/j.jia.2025.04.032