Assessing the agronomic effectiveness of wastewater-treated Allophanic soil as a phosphorus source for plant growth

2018 ◽  
Vol 34 (4) ◽  
pp. 472-478 ◽  
Author(s):  
S. Cheuyglintase ◽  
J. A. Hanly ◽  
D. J. Horne
Keyword(s):  
Plant Growth ◽  
Agronomic Effectiveness ◽  
Phosphorus Source ◽  
Allophanic Soil

Efficacy of phosphate solubilizing Actinobacteria to improve rock phosphate agronomic effectiveness and plant growth promotion

Rhizosphere ◽  
2021 ◽  
Vol 17 ◽  
pp. 100284
Author(s):  
Abdoulaye Soumare ◽  
Kenza Boubekri ◽  
Karim Lyamlouli ◽  
Mohamed Hafidi ◽  
Yedir Ouhdouch ◽  
...  
Keyword(s):  
Plant Growth ◽  
Plant Growth Promotion ◽  
Rock Phosphate ◽  
Growth Promotion ◽  
Agronomic Effectiveness ◽  
Phosphate Solubilizing

scholarly journals Critical Evaluation of the Agronomic Effectiveness of Recovered Phosphate Fertilizer Produced From Incinerated Sewage Sludge Ash

2021 ◽  
Author(s):  
Le FANG ◽  
Qiming Wang ◽  
Jiang-shan Li ◽  
Chi Sun Poon
Keyword(s):  
Sewage Sludge ◽  
Plant Growth ◽  
Critical Evaluation ◽  
Phosphate Fertilizer ◽  
P Availability ◽  
Agronomic Effectiveness ◽  
Sewage Sludge Ash ◽  
P Recovery ◽  
Sludge Ash ◽  
P Fertilizers

Abstract Phosphorus (P) recovery from incinerated sewage sludge ash (ISSA) has been extensively investigated, and various recovered phosphate fertilizers (RPFs) have been produced. In this study, three RPFs (calcium phosphate compounds (CaP), struvite (SP), and P-loaded biochar (BP)) produced from ISSA were characterized and their agronomic effectiveness were verified by pot experiments with the cultivation of choy sum (Brassica campestris L. ssp. Chinensis var. utillis Tsen et Lee) and ryegrass (Lolium perenne L.). The SP has the highest P purity while the BP has the most complex P species. And the plant growth results showed that the RPFs greatly facilitated plant growth and demonstrated superior/comparable effects to those of MP/CoF. In general, choy sum fertilized with SP showed the best effect due to the Mg involved and the high P purity of SP, while ryegrass fertilized with BP performed the best among all of the groups because of the additional nutritional elements and the high P availability of BP. Additionally, the accumulation of heavy metals in the plants under all conditions did not exceed the limits stipulated in the regulations. These results indicate that recovering P from ISSA is an attractive technology to produce P fertilizers, which can alleviate both the scarcity of phosphate resources and the burden of ISSA management.

scholarly journals Phosphorus Source Affects Phosphorus Leaching and Growth of Containerized Spirea

HortScience ◽  
2000 ◽  
Vol 35 (7) ◽  
pp. 1249-1252 ◽  
Author(s):  
Arleen Godoy ◽  
Janet C. Cole
Keyword(s):  
Controlled Release ◽  
Plant Growth ◽  
Phosphorus Leaching ◽  
Triple Superphosphate ◽  
Controlled Release Fertilizer ◽  
P Concentration ◽  
R Ratio ◽  
Phosphorus Source ◽  
P Leaching ◽  
P Fertilizers

Commercially propagated `Halward's Silver' spirea (Spiraea nipponica Maxim.) bareroot cuttings and cuttings with substrate around the roots (plugs) were transplanted into 3.8-L containers and fertilized with various P fertilizers to determine the effect of fertilizer source on P leaching and plant growth. The following fertilizer treatments were applied: 1) 100% of the recommended rate of P from controlled-release fertilizer (CRF), consisting of 22N-2.6P-10K; 2) 100% of P from triple superphosphate (TSP, 0N-20P-0K) with N and K provided by 22N-0P-10K CRF; and 3) 50% of P from CRF, consisting of 22N-1.3P-10K, plus 50% of P from TSP (CRF/TSP). The most P leached from cuttings transplanted as plugs or bareroot and fertilized with TSP, while the least P leached from cuttings transplanted as plugs and fertilized with CRF or CRF/TSP. Plants fertilized with CRF/TSP generally had larger root dry weights than did plants fertilized with CRF or TSP. Plants fertilized with CRF had the smallest stem dry weights. Shoot-to-root (S/R) ratio was largest in plants transplanted as plugs in substrate amended with TSP, but cuttings transplanted bareroot into CRF-amended substrate had the highest S/R ratio and the lowest stem P concentration. Incorporation of CRF/TSP into the container substrate can reduce P leaching compared with incorporation of TSP, and can increase root and stem dry weights of plants transplanted as plugs compared with incorporation of CRF.

scholarly journals The Use of Rock Phosphate as a Source of Phosphorus on a slightly acid clayey Soil in Tanzania

Afrika Focus ◽  
1986 ◽  
Vol 2 (2) ◽  
Author(s):  
J.J.T. Msaky ◽  
B.M. Msanya ◽  
A.P. Uriyo
Keyword(s):  
Plant Growth ◽  
Rock Phosphate ◽  
Clayey Soil ◽  
Residual Effects ◽  
Triple Superphosphate ◽  
Nutrient Source ◽  
Extractable P ◽  
Phosphorus Source ◽  
Soluble P ◽  
Initial Results

The effectiveness of rock phosphate as a phosphorus nutrient source was studied as compared to triple superphosphate (TSP), a common fertilizer used in Tanzania. Initial results showed that rock phosphate can be used as a P source for growing maize. Its application increased both grain yields and soluble floride extractable P in the soil. TSP still proved to be superior to rock phosphate for the direct effect experiments in terms of both grain yield and soluble fluoride extractable P. However, for the residual effects experiment, rock phosphate was equally effective as TSP. Grinding rock phosphate beyond -40+60 mesh did not result in an increase in soluble P. However, increase in levels of application resulted into increased soluble P in soil. A combination of fineness and level of application resulted into an increased amount of soluble P. This combination should thus be used as a criterion in the use of rock phosphate as a P nutrient source for plant growth. KEYWORDS : Rock Phosphate, phosphorus source, soils, Tanzania 

Mechanisms of ethylene biosynthesis and response in plants

2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Ethylene Biosynthesis ◽  
Unsaturated Hydrocarbon ◽  
Flower Senescence ◽  
Detailed Knowledge ◽  
Plant Growth And Development ◽  
Step Process ◽  
Ethylene Response ◽  
Ethylene Signalling

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.

Episodic whole plant growth patterns in Ligustrum

1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks
Keyword(s):  
Plant Growth ◽  
Growth Patterns ◽  
Whole Plant

Adenine salvage activity during callus induction and plant growth

1994 ◽  
Vol 90 (4) ◽  
pp. 739-747 ◽  
Author(s):  
Diana Lee ◽  
Barbara A. Moffatt
Keyword(s):  
Plant Growth ◽  
Callus Induction

Plant growth

AccessScience ◽  
2015 ◽  
Keyword(s):  
Plant Growth
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