Utilization of soil residual phosphorus and internal reuse of phosphorus by crops

Abstract

Phosphorus (P) participates in various assimilatory and metabolic processes in plants. Agricultural systems are facing P deficiency in many areas worldwide, while global P demand is increasing. Pioneering efforts have made us better understand the more complete use of residual P in soils and the link connecting plant P resorption to soil P deficiency, which will help to address the challenging issue of P deficiency. We summarized the state of soil “residual P” and the mechanisms of utilizing this P pool, the possible effects of planting and tillage patterns, various fertilization management practices and phosphate-solubilizing microorganisms on the release of soil residual P and the link connecting leaf P resorption to soil P deficiency and the regulatory mechanisms of leaf P resorption. The utilization of soil residual P represents a great challenge and a good chance to manage P well in agricultural systems. In production practices, the combination of “optimal fertilization and agronomic measures” can be adopted to utilize residual P in soils. Some agricultural practices, such as reduced or no tillage, crop rotation, stubble retention and utilization of biofertilizers-phosphate-solubilizing microorganisms should greatly improve the conversion of various P forms in the soil due to changes in the balance of individual nutrients in the soil or due to improvements in the phosphatase profile and activity in the soil. Leaf P resorption makes the plant less dependent on soil P availability, which can promote the use efficiency of plant P and enhance the adaptability to P-deficient environments. This idea provides new options for helping to ameliorate the global P dilemma.

A Novel High Temperature Resistant and Multifunctional Nitrification Inhibitor: Synthesis, Characterization, and Application

“…Phosphorus fertilizer is often applied to improve the phosphorus uptake by plants. − However, excessive phosphorus fertilizer will remain in soil and cannot be fully utilized by plants. This will lead to eutrophication of rivers, lakes, and groundwater, resulting in huge environmental pollutions. − Reusing insoluble phosphorus in soil is an effective way to solve this problem . HTRMFNI synthesized in this paper can realize the reuse of insoluble phosphorus in soil.…”

“…30−33 Reusing insoluble phosphorus in soil is an effective way to solve this problem. 34 HTRMFNI synthesized in this paper can realize the reuse of insoluble phosphorus in soil. In this part, the ability of HTRMFNI to dissolve insoluble phosphorus is studied.…”

Resilience of maize, wheat, and soybean cropping systems as affected by fertilization: Analysis of a long‐term field network

“…Therefore, wheat should be the main target for P fertilizer applications in the studied area. Phosphorus is a nutrient with low mobility and high residual effect, thus P fertilization to wheat can benefit the following crop in the rotation, such as DC soybean (Di Mauro et al., 2018), and even subsequent crops (Sucunza et al., 2018; Yang & Yang, 2021). In the case of S, a nutrient with intermediate residual effect, obtained results indicate that DC soybean was the most sensitive crop, and it should be prioritized in the distribution of fertilizer applications (Salvagiotti et al., 2005).…”

Insight into phytase-producing microorganisms for phytate solubilization and soil sustainability

“…By maximizing the use of soil-based phosphate pools, including residual phosphorus, biotechnologies must be applied to agriculture to increase the efficiency of phosphate usage in crop production. For instance, intercropping cereals and legumes has been recommended to boost crop yields ( Yang and Yang, 2021 ). Moreover, rhizosphere modification for phytate absorption may be ineffective because of low environmental fitness, inadequate metabolite production, or inoculum variability ( Shenoy and Kalagudi, 2005 ).…”