Tomato yield and quality under various combinations of organic compost

Xinjiang is one of the most prolific tomato-planting areas in China. Here, we carried out a two-year (2017–2018) field experiment in Xinjiang to study the effects of different nitrogen (N) application rates on the spatial distribution of water and salt in the root zone, as well as their impacts on the yield and quality of tomatoes under mulched drip irrigation. The ideal ranges of N application rates for tomato yield and quality were examined under different salinity levels. Results indicated that soil water content and salinity increased with soil depth. Soil water content was closely related to soil salinity but not to N. Among the tested application rates, tomato yield was highest under the medium-high N (225–300 kg/ha) and low salt (4 g/kg) treatment. Under the highest salt level (10 g/kg), the low nitrogen treatment (150 kg/ha) was better than the high N treatment (300 kg/ha) at boosting tomato yield. Moreover, we found that salinity had a stronger effect on tomato quality than N. Based on these results, we were able to recommend ideal ranges for N (155–201 kg/ha) and salt (3.56–5.59 g/kg) while both are present in the soil.

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Interaction of nitrogen and shading on tomato yield and quality

Scientia Horticulturae ◽

10.1016/j.scienta.2019.05.040 ◽

2019 ◽

Vol 255 ◽

pp. 255-259 ◽

Cited By ~ 1

Author(s):

Virginia Hernández ◽

Pilar Hellín ◽

José Fenoll ◽

Pilar Flores

Keyword(s):

Tomato Yield ◽

Yield And Quality

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Influence of potassium on tomato yield and quality (Lycopersicon esculentum Mill)

Manglar ◽

10.17268/manglar.2017.016 ◽

2017 ◽

Vol 14 (2) ◽

pp. 125-131

Author(s):

Bruno Jiménez ◽

Ramón García-Seminario

Keyword(s):

Lycopersicon Esculentum ◽

Lycopersicon Esculentum Mill ◽

Tomato Yield ◽

Yield And Quality

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Responses of Field-grown Tomatoes to Nitrogen Sources

HortTechnology ◽

10.21273/horttech.8.3.386 ◽

1998 ◽

Vol 8 (3) ◽

pp. 386-391 ◽

Cited By ~ 3

Author(s):

E.A. Guertal ◽

J.M. Kemble

Keyword(s):

Ammonium Nitrate ◽

Plant Height ◽

Calcium Nitrate ◽

N Fertilizer ◽

Plastic Mulch ◽

N Sources ◽

Tomato Yield ◽

Yield And Quality ◽

N Source ◽

N Concentration

Although the effect of various N fertilizers on tomato yield and quality has been previously examined, much of this research was conducted in hydroponic or green-house studies. The objective of this research was to examine the effect of N fertilizer sources (ammonium nitrate (NH4NO3), potassium nitrate (KNO3), urea (CO(NH2)2), urea ammonium nitrate (UAN), and calcium nitrate (Ca(NO3)2) on tomato (Lycopersicon esculentum Mill.) growth, yield, and fruit quality. The 2-year experiment was conducted using black plastic mulch covered raised beds with drip fertigation. A total of 180 lb acre (202 Kg·ha−1) N was applied with each N source, with 25% applied preplant and premulch and remaining N applied as 10 weekly applications of 13.5 lb/acre (15.2 kg·ha−1). If an N source contained Ca or K, that amount was applied to all other N sources (preplant and fertigated) as potassium chloride (KCl) or calcium chloride (CaCl2). Collected data included plant height, leaf N concentration, and yield. Different N sources had varying and inconsistent effects on fruit yield and quality. Although plant height and stem diameter from UAN treatments were always smaller than those from other N sources, this effect did not extrapolate to decreased total marketable yield. Differences in N concentration of tomato leaf tissue were not consistent with N source and were not related to differences in tomato yield. There were few differences in yield and quality of nonmarketable fruit due to N source. In this one-site, 2-year study, it appears that any of the N sources studied would be suitable for tomato production, if price of N fertilizer materials are the same.

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Influence of Four Weed Species on the Growth, Yield, and Quality of Direct-Seeded Tomatoes (Lycopersicon esculentum)

Weed Science ◽

10.1017/s0043174500039874 ◽

1981 ◽

Vol 29 (4) ◽

pp. 394-397 ◽

Cited By ~ 19

Author(s):

T. J. Monaco ◽

A. S. Grayson ◽

D. C. Sanders

Keyword(s):

Lycopersicon Esculentum ◽

Tomato Fruit ◽

Growth Yield ◽

Datura Stramonium ◽

Soluble Solids ◽

Weed Species ◽

Tomato Yield ◽

Yield And Quality ◽

Direct Seeded ◽

Shoot Weight

Tomatoes (Lycopersicon esculentum‘Roma VF’) and four weeds were grown in various combinations in field plots in 1973 and 1974. Season-long interference by jimsonweed (Datura stramoniumL.), tall morningglory [Ipomoea purpurea(L.) Roth], and common cocklebur (Xanthium pensylvanicumWallr.) at densities of 11, 43, and 86/m2reduced tomato yields in 1973. In 1974, tomato yields were reduced by these three broadleaf weeds at densities of 2.7, 5.4, 8.1, and 11/m2. Season-long interference by large crabgrass [Digitaria sanguinalis(L.) Scop.] reduced tomato yield at densities of 55, 215, and 430/m2in 1973 and 11, 22, 33, and 55/m2in 1974. The fresh weight of tomato shoots decreased with all weed densities in both years. Total weed shoot weight increased with density and individual weed weights decreased with increasing densities. Tomato fruit quality, as measured by soluble solids, acidity, and color, was not influenced by the various weeds and densities.

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