Effect of Phosphorus Rates on Growth, Yield, and Postharvest Quality of Tomato in a Calcareous Soil

Zhu, Qihong; Ozores-Hampton, Mónica; Li, Yuncong; Morgan, Kelly T.; Liu, Guodong; Mylavarapu, Rao

doi:10.21273/hortsci12192-17

Cited by 27 publications

(16 citation statements)

References 20 publications

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“…Furthermore, P is known to contribute more in yield components like flower, seed formation, and ripening rather than vegetative growth (Rehman and Qayyum 2020). In some other situations, researchers have also reported non-significant effect of P on plant height (Ali et al 2014;Zhu et al 2017). We found increase in spike length, number of grain per spike, and 1000-grain weight which are in lined with Rehman and Qayyum (2020), who reported that phosphorus plays prominent roles in plant physiological processes, but its role is crucial in cell division, formation of seeds, crops maturation, and flower formation.…”

Section: Discussionsupporting

confidence: 86%

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Saeed

Jamal

Muhammad

et al. 2020

J Soil Sci Plant Nutr

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Crop response to phosphorous (P) application is often erratic in most soil types in the world. In alkaline calcareous soils, P retention and mobilization take place due to precipitation and adsorption. P adsorption isotherms are the powerful tools for assessing optimum P levels for different crops and soils. Laboratory and field studies were carried out to evaluate P sorption capacity in a highly calcareous soil and corresponding fertilizer levels for yielding 0.1 to 1.0 mg P L −1 of soil solution. Although Freundlich adsorption isotherm model showed a better fit than Langmuir model, P fertilizer levels used in the field, ranging from 20 to 150 kg P 2 O 5 ha −1 , were based on Langmuir model to yield the estimated P solution. Moreover, nitrogen (N) and potassium (K) were applied at the rates of 120 and 60 kg ha −1 as urea and potassium sulfate (K 2 SO 4), respectively, in a basal treatment at the time of sowing. Grains per spike, 1000-grain weight, grain yield, spike length, and biological yield were increased as the level of P increased, but the non-significant differences among 90, 100, and 120 kg P 2 O 5 ha −1 for most of the above parameters suggested that the former rate could be the maximum level for wheat fertilization in the calcareous soil. Similarly, plant N, P, and K were increased with application of P, but non-significant differences were observed from doses 90 to 120 kg P 2 O 5 ha −1. Moreover, the rate of 90 kg P 2 O 5 ha −1 could yield 0.6 mg P L −1 of soil solution as per Langmuir adsorption isotherm model, while as per Freundlich model, this value could reach only 0.3-0.4 mg P L −1 , which is close to the published literature. It is concluded that Freundlich adsorption isotherm is more suitable to be used for the calculation of phosphatic fertilizer rate and its adsorption capacity in the given soil than Langmuir adsorption isotherm.

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Section: Discussionsupporting

confidence: 86%

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Saeed

Jamal

Muhammad

et al. 2020

J Soil Sci Plant Nutr

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“…The taste and flavor of tomatoes and their antioxidant content differ according to growing conditions, cultivation techniques, cultivars, and cultivation time [10][11][12][13]. Soil P is a well-known key nutrient for tomato production and other crops, such as maize [14] and soybean [15], and maintaining adequate levels of P in the soil is important for maximizing tomato growth and development [16][17][18]. However, the effect of different P fertilizer amounts on the growth performance of tomato plants remains unknown.…”

Section: Introductionmentioning

confidence: 99%

Impact of Phosphorus Fertilization on Tomato Growth and Arbuscular Mycorrhizal Fungal Communities

et al. 2020

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Understanding the impact of phosphorus (P) addition on arbuscular mycorrhizal fungi (AMF) is crucial to understanding tomato (Solanum lycopersicum L.) P nutrition. However, it remains unknown how P fertilization is associated with the structure of AMF communities on tomato plants. Thus, we investigated whether levels of P fertilizer interacted with the colonization and structure of AMF in tomato roots in a field trial. In this study, we established three different amounts of P fertilizer treatments (0 kg ha −1 , 50 kg ha −1 , and 100 kg ha −1 ). We investigated AMF root colonization and community structure, as well as plant growth in tomatoes at seven weeks following transplantation. The structure of the AMF communities in the roots of tomato were determined by MiSeq amplicon sequencing. As expected, P fertilizer input enhanced the P uptake and plant biomass. In contrast, the P fertilizer level did not affect the AMF root colonization and diversity or the structure of the AMF communities in the tomato. However, we found a negative correlation between AMF colonization and richness in the roots of the tomato plants. Therefore, we need to investigate whether and how AMF communities and P fertilization develop more effective P management for tomato plants.

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“…y P value of the analysis of variance. medium-size fruit, were mainly from the first and second harvests (Zhu et al, 2017a). As a result, the significantly affected tomato marketable yields from FH in 2014 and FSH in 2015 were selected to regress against STP.…”

Section: Discussionmentioning

confidence: 99%

Comparison of Extractants for Calibrating Phosphorus Application Rates in a Calcareous Soil

Zhu¹,

Li²,

Mylavarapu³

et al. 2019

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Preplant soil testing is essential for optimizing phosphorus (P) fertilization and minimizing the potential for soil P losses. Currently, there is no effective soil P extractant for calcareous soils in Florida. This study was conducted to compare Mehlich-3, ammonium bicarbonate–diethylenetriaminepentaacetic acid (AB-DTPA), and Olsen for evaluating P availability, estimating soil-test P (STP) critical levels, and calibrating P application rates for fresh-market tomato (Solanum lycopersicum L.) production in a calcareous soil. Tomatoes were grown during Winter 2014 and 2015 with P application rates of 0, 29, 49, 78, 98, and 118 kg·ha‒1 P. Water-extractable P (water-P) and dissolved reactive P (DRP) in leachate were used to determine the STP change point of leaching potential. Results showed the greatest correlation occurred between Mehlich-3 and Olsen of the three STP extractants. For Mehlich-3-P, the medium STP level (producing 75% to 90% relative yield) was predicted from 76 to 89 mg·kg‒1 and the change point was predicted at 88 or 104 mg·kg‒1 by split-line models. The P requirement was calculated from 52 to 112 kg·ha‒1 when Mehlich-3-P was rated as low level (producing 50% to 75% relative yield), which was from 42 to 76 mg·kg‒1. The multiple regression models using AB-DTPA-P and Olsen-P could not predict either the medium STP level or the practical P application rates for the low level. Consequently, based on 2 years of data, Mehlich-3 was the most effective extractant for estimating soil P availability and calibrating P rates in calcareous soils with an extremely high calcium carbonate (CaCO3) content.

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Effect of Phosphorus Rates on Growth, Yield, and Postharvest Quality of Tomato in a Calcareous Soil

Cited by 27 publications

References 20 publications

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Impact of Phosphorus Fertilization on Tomato Growth and Arbuscular Mycorrhizal Fungal Communities

Comparison of Extractants for Calibrating Phosphorus Application Rates in a Calcareous Soil

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