Enhancing phosphorus-use efficiency in crop production

Phosphorus is an essential macronutrient, both as a component of several important plant structural compounds and as a catalyst in the conversion of numerous important biochemical reactions in plants. The soil Olsen P (OP) level is an important factor affecting crop production and P-use efficiency (PUE). We tested the effect of six OP levels and P doses on maize yield, where the P doses were 0, 22, 44, 59, 73, and 117 kg P2O5 ha−1, with three replications, from 2017 to 2019. The response of crop yield to the OP level can be divided into two parts, below 28 mg kg−1 and above 28 mg kg−1. The change point between the two parts was determined as the agronomic critical level for maize crops in the study area. The PUE (%) increased with soil OP levels and decreased with P fertilizer application rates. In addition, results for the low P application rate (P2), 22 kg P2O5 ha−1, showed that PUE significantly increased with an increase in the soil OP level compared with PUE at a low OP level (OP1), 0 kg P2O5 ha−1. The PUE value increased by 49.5%, 40.1%, and 32.4% at a high OP level (OP6) in 2017, 2018, and 2019, respectively, compared to that at a low OP level (OP1). At the same OP levels, in all three years, the PUE at a high P application rate (P6) decreased significantly, in the range of 62.8% to 78.7%, compared to that at a low P application rate (P2). Under an average deficit of 100 kg ha−1 P, the OP level of the soil in all three years decreased by 3.9 mg kg−1 in the treatment without P addition (P1) and increased by 2.4–3.5 mg kg−1 in the P treatments for each 100 kg ha−1 P surplus. A phosphorus application rate of 44 kg P2O5 ha−1 and an OP level of 28 mg kg−1 are sufficient to obtain an optimum yield, increase the PUE, and reduce environmental hazards in the study area in northeastern China.

Download Full-text

Biochemical Composition and Phosphorus Use Efficiency in Some Mixtures

International Journal of Bioassays ◽

10.21746/ijbio.2016.07.006 ◽

2016 ◽

Vol 5 (07) ◽

pp. 4694 ◽

Cited By ~ 1

Author(s):

Viliana Vasileva ◽

Anna Ilieva

Keyword(s):

Perennial Ryegrass ◽

Biochemical Composition ◽

Plant Biomass ◽

Soluble Sugars ◽

Subterranean Clover ◽

Water Soluble ◽

Birdsfoot Trefoil ◽

Phosphorus Use Efficiency ◽

Forage Crops ◽

Use Efficiency

In pot trial the biochemical composition and phosphorus use efficiency of birdsfoot trefoil, sainfoin and subterranean clover grown pure and in mixtures with perennial ryegrass in the next ratios were studied in the Institute of Forage Crops, Pleven, Bulgaria: birdsfoot trefoil + perennial ryegrass (50:50%); sainfoin + perennial ryegrass (50:50%); subterranean clover + perennial ryegrass (50:50%); birdsfoot trefoil + subterranean clover + perennial ryegrass (33:33:33%); sainfoin + subterranean clover + perennial ryegrass (33:33:33%). The highest crude protein content was found in the aboveground mass of birdsfoot trefoil (19.17%) and sainfoin (19.30%). The water soluble sugars contents in mixtures was found higher compared to the pure grown legumes. Birdsfoot trefoil showed the highest phosphorus use efficiency for plant biomass accumulation and nodules formation. In mixtures the phosphorus use efficiency was found be higher as compared to the same in pure grown legumes.

Download Full-text

Molecular control and genetic improvement of phosphorus use efficiency in rice

Molecular Breeding ◽

10.1007/s11032-019-1059-3 ◽

2019 ◽

Vol 39 (12) ◽

Cited By ~ 2

Author(s):

Qiuju He ◽

Fei Wang ◽

Yan Wang ◽

Hong Lu ◽

Zhili Yang ◽

...

Keyword(s):

Genetic Improvement ◽

Phosphorus Use Efficiency ◽

Molecular Control ◽

Use Efficiency

Download Full-text

Synergy between a shallow root system with a DRO1 homologue and localized P application improves P uptake of lowland rice

Scientific Reports ◽

10.1038/s41598-021-89129-z ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Aung Zaw Oo ◽

Yasuhiro Tsujimoto ◽

Mana Mukai ◽

Tomohiro Nishigaki ◽

Toshiyuki Takai ◽

...

Keyword(s):

Root System ◽

Crop Production ◽

Soil Surface ◽

P Uptake ◽

Ore Deposits ◽

Root Surface Area ◽

Genetic Traits ◽

P Use Efficiency ◽

Use Efficiency ◽

P Application

AbstractImproved phosphorus (P) use efficiency for crop production is needed, given the depletion of phosphorus ore deposits, and increasing ecological concerns about its excessive use. Root system architecture (RSA) is important in efficiently capturing immobile P in soils, while agronomically, localized P application near the roots is a potential approach to address this issue. However, the interaction between genetic traits of RSA and localized P application has been little understood. Near-isogenic lines (NILs) and their parent of rice (qsor1-NIL, Dro1-NIL, and IR64, with shallow, deep, and intermediate root growth angles (RGA), respectively) were grown in flooded pots after placing P near the roots at transplanting (P-dipping). The experiment identified that the P-dipping created an available P hotspot at the plant base of the soil surface layer where the qsor1-NIL had the greatest root biomass and root surface area despite no genotyipic differences in total values, whereby the qsor1-NIL had significantly greater biomass and P uptake than the other genotypes in the P-dipping. The superior surface root development of qsor1-NIL could have facilitated P uptakes from the P hotspot, implying that P-use efficiency in crop production can be further increased by combining genetic traits of RSA and localized P application.

Download Full-text

Optimization of Topdressing for Winter Wheat by Accurate Growth Monitoring and Improved Production Estimation

Remote Sensing ◽

10.3390/rs13122349 ◽

2021 ◽

Vol 13 (12) ◽

pp. 2349

Author(s):

Jingchun Ji ◽

Jianli Liu ◽

Jingjing Chen ◽

Yujie Niu ◽

Kefan Xuan ◽

...

Keyword(s):

Winter Wheat ◽

Crop Production ◽

Optimization Method ◽

Growth Potential ◽

N Use Efficiency ◽

Growth Monitoring ◽

Aerial Vehicle ◽

Use Efficiency ◽

Improved Model ◽

N Use

Topdressing accounts for approximately 40% of the total nitrogen (N) application of winter wheat on the Huang-Huai-Hai Plain in China. However, N use efficiency of topdressing is low due to the inadaptable topdressing method used by local farmers. To improve the N use efficiency of winter wheat, an optimization method for topdressing (THP) is proposed that uses unmanned aerial vehicle (UAV)-based remote sensing to accurately acquire the growth status and an improved model for growth potential estimation and optimization of N fertilizer amount for topdressing (NFT). The method was validated and compared with three other methods by a field experiment: the conventional local farmer’s method (TLF), a nitrogen fertilization optimization algorithm (NFOA) proposed by Raun and Lukina (TRL) and a simplification introduced by Li and Zhang (TLZ). It shows that when insufficient basal fertilizer was provided, the proposed method provided as much NFT as the TLF method, i.e., 25.05% or 11.88% more than the TRL and TLZ methods and increased the yields by 4.62% or 2.27%, respectively; and when sufficient basal fertilizer was provided, the THP method followed the TRL and TLZ methods to reduce NFT but maintained as much yield as the TLF method with a decrease of NFT by 4.20%. The results prove that THP could enhance crop production under insufficient N preceding conditions by prescribing more fertilizer and increase nitrogen use efficiency (NUE) by lowering the fertilizer amount when enough basal fertilizer is provided.

Download Full-text

Optimizing water and phosphorus management to improve hay yield and water‐ and phosphorus‐use efficiency in alfalfa under drip irrigation

Food Science & Nutrition ◽

10.1002/fsn3.1530 ◽

2020 ◽

Vol 8 (5) ◽

pp. 2406-2418 ◽

Cited By ~ 1

Author(s):

Qianbing Zhang ◽

Junying Liu ◽

Xuanshuai Liu ◽

Shengyi Li ◽

Yanliang Sun ◽

...

Keyword(s):

Drip Irrigation ◽

Phosphorus Use Efficiency ◽

Use Efficiency

Download Full-text

Economic impacts of nitrogen and phosphorus use efficiency on nineteen intensive grass-based dairy farms in the South of Ireland

Agricultural Systems ◽

10.1016/j.agsy.2014.09.008 ◽

2015 ◽

Vol 132 ◽

pp. 121-132 ◽

Cited By ~ 16

Author(s):

E. Mihailescu ◽

W. Ryan ◽

P.N.C. Murphy ◽

I.A. Casey ◽

J. Humphreys

Keyword(s):

Economic Impacts ◽

Dairy Farms ◽

Phosphorus Use Efficiency ◽

The South ◽

Nitrogen And Phosphorus ◽

Use Efficiency

Download Full-text

Fodder legumes affecting sequential crop production and fertilizer N use efficiency

The Journal of Agricultural Science ◽

10.1017/s0021859600055611 ◽

1985 ◽

Vol 105 (1) ◽

pp. 1-7 ◽

Cited By ~ 5

Author(s):

R. De ◽

M. A. Salim Khan ◽

M. S. Katti ◽

V. Raja

Keyword(s):

Pearl Millet ◽

Crop Production ◽

Cyamopsis Tetragonoloba ◽

Fertilizer N ◽

Available N ◽

Yield Increase ◽

Sudan Grass ◽

Fodder Crops ◽

Use Efficiency ◽

Subsequent Crop

SUMMARYExperiments made with winter fodder crops, lucerne (Medicago sativa), berseem (Trifolium alexandrinum) and oats (Avena sativa) and summer fodder crops, cow pea (Vigna unguiculata), guar (Cyamopsis tetragonoloba), sunhemp (Crotolaria juncea) and pearl millet (Pennisetum americanum) showed that a sequential crop of Sudan grass yielded more after the legumes than after the cereal fodders, oats or pearl millet. The legume advantage was noted in the crop not given fertilizers but also when Sudan grass was given N fertilizer. The yield increase in Sudan grass grown after legumes was equivalent to 32–60 kg fertilizer N/ha applied to Sudan grass following pearl millet.After harvesting the legumes more available N and NO3-N was present in the soil and the apparent recovery of fertilizer N by a subsequent crop was increased by the legume.

Download Full-text