Arbuscular mycorrhiza contributes to the control of phosphorus loss in paddy fields

Zhang, Shujuan; Guo, Xinyue; Yun, Wenfei; Xia, Yu; You, Zhaoyang; Rillig, Matthias C.

doi:10.1007/s11104-019-04394-2

Cited by 29 publications

(15 citation statements)

References 47 publications

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“…The N, P, and K contents of seedlings are shown in Table 2. The N content was determined by the Kjeldahl method (ATN-300, Hongji, Shanghai, China) [30], the P content by the molybdenum-antimony colorimetric method (UV-2600A, Unicom, Shanghai, China) [31] and the K content by the atomic absorption spectrophotometer method (AA7002, Dongxi, Beijing, China) [32]. A random sample of three replications of three seedlings each per treatment (total of nine seedlings) were harvested to measure their biomasses.…”

Section: Measured Seedling Attributesmentioning

confidence: 99%

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Yang

Grossnickle³

et al. 2020

Forests

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Phoebe bournei is a rare and endangered woody species and the success of its plantation development is dependent upon proper seedling cultivation. This study explored the regulation of N, P and K fertilizer and the interaction of these macronutrients on the growth of Phoebe bournei seedlings. To determine the optimum rate and ratio of N–P–K fertilizer in seedling cultivation, we used the unique “3414” incomplete orthogonal regression design to evaluate the effects of N–P–K fertilization on seedling morphological development. One-year-old Phoebe bournei bareroot seedlings were grown for one growing season under the defined fertilization regime, with their morphological development determined by measuring seedling attributes—root, stem, leaves and total biomass, root collar diameter and seedling height. These attributes were then combined to calculate the following indices: height-diameter ratio, shoot-root ratio and the seedling quality index (QI). Results showed that the N–P–K fertilizer had significant and beneficial effect on seedling cultivation. N effect was highest, followed by K and P. The three-way N×P×K interaction effect was strong, and the two-way interactions effect was highest for N×P, followed by P×K and N×K. At the “2” level of N (0.532 g·plant−1), P (P2O5, 0.133 g·plant−1), and K fertilizer (K2O, 0.356 g·plant−1), seedling growth and biomass accumulation were at their maximum. Unary, binary, and ternary quadratic fertilizer effect function equations of QI were established. Through comparative analysis, the ternary quadratic model was the optimal model and through a simulation–optimization, the optimal N–P–K fertilizer rates were 0.373~0.420 g·plant−1 (N), 0.086~0.106 g·plant−1 (P2O5), 0.243~0.280 g·plant−1 (K2O), with a N–P–K ratio of 1:0.20:0.43~1:0.65:0.75.

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Section: Measured Seedling Attributesmentioning

confidence: 99%

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Yang

Grossnickle³

et al. 2020

Forests

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“…The presence of AMF in lowland rice paddies improves P uptake in roots by increasing P mineralization in the rhizosphere [11]. Furthermore, these fungi also ameliorated P losses in rice paddies by preventing leaching and runoff of P from the soil [12].…”

Section: Introductionmentioning

confidence: 99%

Flooding overshadows phosphorus availability in controlling the intensity of arbuscular mycorrhizal colonization in Sangyod Muang Phatthalung lowland indica rice

Klinnawee¹,

Noirungsee²,

Nopphakat³

et al. 2021

ScienceAsia

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Phosphorus (P) availability and soil water are two important environmental factors in lowland rice paddies. They limit the ability of rice to form mutualistic associations with arbuscular mycorrhizal fungi (AMF). The dynamics of this symbiotic interaction are intensified by phosphorus deficiency and attenuated by anaerobic conditions. However, the effects of combined phosphorus deficiency and anaerobic conditions on AMF symbiosis in paddy soil were unproven. The main objective of this study is to determine the influence of phosphorus and water availabilities on indigenous AMF colonization and community in Sangyod Muang Phatthalung (SMP) rice. Rice seedlings were grown in pots containing P-deficient organic paddy soil with or without phosphorus fertilization under non-flooded and flooded conditions for 2, 4 and 6 weeks. The application and omission of P soil fertilization influenced phosphate accumulations in rice seedlings, producing conditions of P-sufficiency and P-deficiency, respectively, in the plants. To determine the effects of phosphorus and water availabilities on AMF colonization and community structures, roots were analyzed microscopically and molecularly. Flooding considerably reduced the intensity of indigenous AMF root colonization whereas the nonenrichment of P availability did not. Reduced AMF colonization was concomitant with lower abundances of two major Glomeromycota ASVs in roots under flooding. This result suggested that soil water availability plays the primary role in shaping AMF communities in SMP roots. This study emphasized the primacy of water management when considering the use of AMF in the production of SMP rice in an organic cultivation system.

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“…Roots, stems, and leaves were made into analytical samples by grinding with a plant crusher, and then processing through a 0.5 mm plastic sieve. Samples were put into a selfsealing bag for the determination of total N, P, and K. Samples of 0.30 g were prepared by the elimination method to produce the test solution, N, P, and K contents were determined by Kjeldahl method (ATN-300, Hongji, Shanghai, China) [33], molybdenum-antimony colorimetric method (UV-2600A, Unicom, Shanghai, China) [34], FP640 flame photometry (Shanghai Precision Scientific Instrument Co., Ltd., Shanghai, China) [35], respectively. Each indicator was repeated three times.…”

Section: Seedling Measurement Parametersmentioning

confidence: 99%

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

Yang

Chen

et al. 2021

Agriculture

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To study the effect of N-P-K fertilization on Phoebe bournei seedlings’ organs dry biomass, and nutrients accumulation and allocation, and to further uncover how nutrients regulating dry biomass formation through fertilization, we utilized the “3414” experiment design. The results showed that N, P, and K fertilizer promoted dry biomass accumulation, and root, stem, and total plant N, P, and K content and accumulation in seedlings. The dry biomass accumulations of root, stem, and total plant increased first and then decreased with the increase of N, P, and K application rates, which was basically consistent with the change in dry biomass allocations and N, P, and K contents, accumulations, and allocations. Root N accumulation, root P accumulation, and total plant K accumulation were the key indicators for seedlings growth. N fertilizer had the greatest effect on total dry biomass and root N accumulation, was the most important fertilizer for the growth of Phoebe bournei seedlings, can regulate the growth of root and leaves, is beneficial to root growth at medium-low N fertilizer levels (N: 0.266–0.532 g·plant−1), and leaves growth at high N fertilizer level (N: 0.798 g·plant−1). P fertilizer rate can regulate the seedling stem growth, reaching the maximum at the medium level P application (P2O5: 0.1332 g·plant−1). K fertilizer had the greatest effect on the root P accumulation and total K accumulation, promoting K transport from leaves to root, improved root and stem growth, and inhibited leaves growth. The N, P, and K fertilizer three-factor application can better promote nutrient uptake than double-factor and single-factor fertilization, with highest dry biomass accumulation at the medium level of N, P, K fertilizer (N: 0.532 g·plant−1; P2O5: 0.1232 g·plant−1; K2O: 0.356 g·plant−1). In conclusion, N, P, and K fertilization promoted the N, P, and K absorption, increased root, stem, and leaves N, P, and K content and accumulation, and promoted the seedling dry biomass accumulation, but reversed under excessive application of N, P, and K fertilizer; and N fertilizer was beneficial to root and leaves growth, P fertilizer to stem growth, and K fertilizer to material transfer, which provided a theoretical basis for robust Phoebe bournei seedling cultivation.

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Arbuscular mycorrhiza contributes to the control of phosphorus loss in paddy fields

Cited by 29 publications

References 47 publications

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Formula Fertilization Promotes Phoebe bournei Robust Seedling Cultivation

Flooding overshadows phosphorus availability in controlling the intensity of arbuscular mycorrhizal colonization in Sangyod Muang Phatthalung lowland indica rice

Fertilization Regulates Accumulation and Allocation of Biomass and Nutrients in Phoebe bournei Seedlings

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