Tomato yield and quality as affected by nitrogen source and salinity

Flores, Pilar; Navarro, Josefa M.; Carvajal, Micaela; Cerdà, Artemi; Martı́nez, Vicente

doi:10.1051/agro:2002088

Cited by 40 publications

(32 citation statements)

References 19 publications

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“…From our experiment, it is obvious that the variety 'Rio grande' is better adapted to the local conditions, since its yield was two times greater than that of the variety 'Rossol VFN'. Globally, fruit mineral composition was similar to that mentioned in other papers [15][16][17] and did not show major mineral deficiencies. However, taking into account potassium, calcium and to a degree phosphorus fruit concentrations, fertilization treatments can be separated into two groups: the group of low fruit mineral concentration (with the F0 and F4 treatments) and the group of high fruit mineral concentration (with the F1, F2 and F3 treatments).…”

Section: Discussionsupporting

confidence: 84%

Impact of organic and inorganic fertilizers on tomato vigor, yield and fruit composition under tropical andosol soil conditions

Tonfack¹,

Bernadac²,

Youmbi³

et al. 2009

Fruits

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--Introduction. Little is known about the impact of organic manure on andosol. Materials and methods. Two varieties of Solanum lycopersicum L. (cvs. 'Rio grande' and 'Rossol VFN') were grown under tropical andosol. The soil was silty, acidic and very poor in Bray P (3 mg·kg -1 ) with a strong imbalance in the (Ca:Mg:K) ratio of (74.0:25.0:0.7). Five fertilization treatments were used: (i) control with no fertilizer, (ii) minerals, with a (Ca:Mg:K) ratio of (76:18:6) and 75 mg P·kg -1 of soil; (iii) poultry manure with a (Ca:Mg:K) ratio of (68:24:7) and 450 mg P·kg -1 of soil; (iv) a combination of (ii) and (iii), and (v) mineral fertilization as applied by local farmers, with a (Ca:Mg:K) ratio of (73:25:1) and 54 mg P·kg -1 of soil. Results. All cationbalanced treatments (organic, mineral or a combination of both) significantly improved plant growth, the number of trusses and fruits per plant, the marketable fruit yield and fruit P, K, Ca and Na contents of both tomato varieties considered. The 'Rio grande' variety was the most productive (32-44 t·ha -1 ) compared with the 'Rossol' variety (20-22 t·ha -1 ). There was no major difference between the organic fertilizer and the cation-balanced mineral fertilizer. There was no effect of mineral fertilizer with an unbalanced cation composition on tomato plant growth and production as compared with unfertilized control. Conclusion. In tropical andosol poor in potassium and phosphorous and with excess of Mg, application of poultry manure in adequate dosage and at the right time is capable of sustaining tomato fruit production, as well as the application of calculated inorganic fertilizer. ). Il n'y a pas eu de différences majeures entre les plants fertilisés avec l'engrais organique et ceux ayant reçu un engrais minéral équilibré en cations. La fertilisation minérale déséquilibrée en cations n'a pas eu d'effet sur la croissance et la production des plants de tomate par rapport au traitement témoin sans engrais. Conclusion. Dans les andosols tropicaux pauvres en potassium et en phosphore et présentant un excès de magnésium, l'application de fumier de volaille à des doses adaptées et au bon moment permet de maintenir une production de tomates équivalente à celle obtenue avec un engrais minéral bien dosé.Cameroun / Solanum lycopersicum / fruits / andosol / fertilisation / engrais minéral / engrais organique / croissance / qualité

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Section: Discussionsupporting

confidence: 84%

Impact of organic and inorganic fertilizers on tomato vigor, yield and fruit composition under tropical andosol soil conditions

Tonfack¹,

Bernadac²,

Youmbi³

et al. 2009

Fruits

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“…However, these characteristics can be influenced by nitrogen fertilization (ARMENTA -BOJORQUEZ et al, 2001;OBERLY et al, 2002;FLORES et al, 2003;VALENCIA et al, 2003;WARNER et al, 2004) that might have been in excess or lacking in the organic fertilizer used in the present study. Ferreira et al (2006) studied tomato quality in relation to nitrogen and organic fertilizer application rates in two seasons and found that tomato fruit pH was not changed by higher N rates, reaching average pH of 4.58 and 4.61 with and without adding organic matter to the soil, respectively.…”

Section: Resultsmentioning

confidence: 78%

Tomato yield and quality under various combinations of organic compost

França¹,

Pedrosa²,

Carlos³

et al. 2016

Biosci. J.

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ABSTRACT:The number of growers and planted area dedicated to organic farming have increased considerably. Consequently, demand has increased for alternative organic composts in terms of quantity and new options for direct use with crops. Making use of local industrial byproducts is also important throughout Brazil and the rest of the world. Therefore, it was evaluated the effect of eight types of organic composts, produced with different percentages of poultry litter and crushed sugarcane on tomato yield and quality. (0, 10, 20, 30, 40, 50, 50, 60 and 70%) yielding eight types of alternative Bokashi used as organic compost in the production of two tomato cultivars (Santa Clara and the Verano hybrid). It was found that the various formulations of alternative Bokashi, except the alternative Bokashi B1, strengthened components of tomato yield and quality. We found that composts of poultry litter and crushed sugarcane increase tomato yield and quality and can be and excellent alternative, especially for organic farmers.

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“…In this case, the total nitrogen concentration was not affected. Other studies on tomato and salinity showed that fruit Ca 2+ was also decreased by salinity or NH + 4 , with the negative effect of NH + 4 being higher than the effect of salinity (Flores et al, 2003).…”

Section: Salinitymentioning

confidence: 85%

Minerals in plant food: effect of agricultural practices and role in human health. A review

Martínez-Ballesta

Domínguez‐Perles

Moreno

et al. 2010

Agron. Sustain. Dev.

188

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-Interest in nutrient absorption and accumulation is derived from the need to increase crop productivity by better nutrition and also to improve the nutritional quality of plants as foods and feeds. This review focuses on contrasting data on the importance for human health of food mineral nutrients (Ca, Mg, K, Na and P) and also the trace elements considered essential or beneficial for human health (Cr, Co, Cu, Fe, Mn, Mo, Ni, Se and Zn). In addition, environmental stresses such as salinity, drought, extreme temperatures and light conditions that affect mineral content were revised in the light that the effect of these factors depends on the species or cultivar, and the specific plant organ, as well as the intensity and duration of the stress. Differences between inorganic and organic fertilisation practices on the mineral levels were also analysed to evaluate the influence of external factors on the quality of plant-based foods.

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Tomato yield and quality as affected by nitrogen source and salinity

Cited by 40 publications

References 19 publications

Impact of organic and inorganic fertilizers on tomato vigor, yield and fruit composition under tropical andosol soil conditions

Impact of organic and inorganic fertilizers on tomato vigor, yield and fruit composition under tropical andosol soil conditions

Tomato yield and quality under various combinations of organic compost

Minerals in plant food: effect of agricultural practices and role in human health. A review

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