News Update on Tomato Production Research: May – 2019

Energy inputs and crop yield relationship in greenhouse tomato production

This study examines energy use patterns and therefore the relationship between energy inputs and yield for greenhouse tomato production in metropolis province of Turkey. information|the info|the information} employed in this study were supported cross-sectional data collected from growers by employing a face to face survey. The results unconcealed that diesel (34.35%), chemical (27.59%), electricity (16.01%), chemicals (10.19%) and human power (8.64%) consumed the majority of energy. within the surveyed farms, average yield and energy consumption were calculated as around 160000 kg/ha and 106716.2 MJ/ha, severally. The results additionally showed that output–input, specific energy and energy productivity were one.2, 12380.3 MJ/t and zero.09 kg/MJ, severally. The results implicit  that tiny size farms were additional economical than massive ones in terms of output–input magnitude relation. associate degree economics model was developed to estimate the impact of energy inputs on yield. Therefore, tomato yield, associate degree endogenous variable was assumed to be a operate of exogenous variables; chemical, chemicals, machinery, human, water for irrigation and seed energy. The empirical results indicated that each one exogenous variables except seed energy were found statistically important and contributed to yield. Among all statistically important exogenous variables, human, fertilizer, water, chemicals and machinery were hierarchal in terms of elasticities. These results indicate that the Turkish greenhouse business heavily depends on fossil fuels. [1]

A no-tillage tomato production system using hairy vetch and subterranean clover mulches  [1993]

A novel approach is represented for exploitation 2 winter annual legumes – hairy tare (Vicia villosa L. Roth.) and ‘Mt. Barker’ subterranean herb (Trifolium subterraneum L.) – as cowl crops and plant mulches in tomato (Lycopersicon esculentum Mill.) production. The approach entails sowing the duvet crops within the fall in ready beds, mowing the duvet crops with a high-speed flail lawn mower forthwith before movement the tomato seedlings into the sector in early might, then movement the seedlings into the beds with negligible interruption of the soil or mulch cowl. Plants within the leguminous plant treatment with no tillage created the next yield than those fully grown below black synthetic resin, paper, or no mulch in typical systems. each plant mulches delayed fruit maturity by about ten days relative to black synthetic resin mulch. The planned approach eliminates tillage, reduces the requirement for applying artificial fertilizers and herbicides, and is customized to large- and small-scale tomato production in an exceedingly low-input, no-tillage system. It additionally is also accustomed turn out different vegetables.  [2]

LCA and tomato production in Mediterranean greenhouses

LCA is employed to analyse and appraise the environmental impact related to the method of greenhouse cultivation of a tomato crop. Tomato production in metric weight unit is chosen as a purposeful unit. 3 totally different tomato production processes were compared: soil cultivation and open and closed agriculture systems. 3 totally different waste management eventualities were additionally analysed. the foremost vital negative environmental impacts were known, enabling  the appliance of the foremost appropriate technology so as to mitigate their effects. the most negative impact of greenhouse tomato production derives from the waste of biomass and plastics, thus appropriate waste management is that the best practicable environmental choice to scale back this. The composting of perishable matter is that the best method of managing this type of waste. rising the fabric composition of structures and auxiliary materials is additionally suggested. Lastly, a lot of rational management criteria for the availability of nutrients to the crop can got to be found. [3]

Coordination between vapor pressure deficit and CO2 on the regulation of photosynthesis and productivity in greenhouse tomato production

The high pressure deficit (VPD) in some arid and semi-arid climates creates undesirable conditions for the expansion of tomato plants (Solanum Lycopersicon L., cv. Jinpeng). the world dioxide concentration ([CO2]) has additionally up in recent years to levels higher than 400 μmol•mol−1. However, the coordinated impact of VPD and [CO2] on herb growth remains unclear, particularly at VPDs of 5–6 kPa or perhaps higher that are extraordinarily harmful to plant growth. Here, we have a tendency to explore the interaction of VPD and [CO2] on plant water standing, stomatal characteristics, and gas exchange parameters in summer greenhouses in a very semi-arid space. Plants were full-grown in four adjacent glass greenhouses with totally different environmental conditions: (i) high VPD + low [CO2] representing natural/control conditions; (ii) high VPD + high [CO2] representing enriched dioxide; (iii) low VPD + low [CO2] representing reduced VPD; and (iv) low VPD + high [CO2] representing reduced VPD and enriched CO2. Reducing the VPD eased the water stress of the plant and inflated the gas exchange space of the leaf, that was helpful to the entry of dioxide into the leaf. At this point, the rise of [CO2] was additional helpful to market the chemical process rate and so improve the water use potency and yield. [4]

Impact of Irrigation and Mulching on Tomato Yield and Soil Nutrient Status on Soils Treated with KCl and NaCl

An experiment was conducted at the Teaching and analysis Farm of Kebbi State University of Science and Technology at Jega to guage tomato fruit yield and nutrient accessibility as influenced by mulching and irrigation schedule on salt treated soil. The experiment consists of down combos of 2 irrigation intervals (four (I4) days irrigation and 7 (I7) days irrigation intervals), and 2 mulching levels (with mulch and while not mulch). The treatments were coded as MI4, MI7, UMI4, and UMI7: allotted as Mulch with four days irrigation interval, Mulch with seven days interval, while not mulch with four days irrigation interval, while not mulch with seven days irrigation interval, severally. The treatments were set down during a randomised complete block style (RCBD), and replicated 3 times. Total tomato fruit yield as measured at the top of the experiment shows that I4 (4 days irrigation interval) has the best total yield of thirty one.65 t ha-1 as against twenty one.9 t ha-1 recorded for I7 (7 days irrigation interval). Mulch application additionally yielded higher total fruit yield of twenty nine.9 t ha-1 that is above no mulch plot that is twenty three.63 tha-1. However, marketable fruits additionally keep constant trend that’s I4 is superior over I7 with the values of fifty five.77% and 50.79% severally, Mulch treatment additionally yielded the best proportion marketable fruit yield of fifty six.15% above no mulch plot with fifty.41%. once harvest the soil properties indicated that pH wasn’t considerably laid low with irrigation intervals at each level, however Mulch treatment have five.13 and no Mulch have five.03. Organic Carbon proportion indicates that I4 is under I7 with the worth of zero.43% and 0.49% severally, additionally mulch treatments has higher proportion O.C. I7 is above I4 in terms of Total N content with the worth of zero.062% and 0.055% severally, the trend for Mulch is comparable as Mulch plots is above no Mulch plots in Total N content. offered P content indicated that I7 has five.28 mg kg-1, whereas I4 has a pair of.60 mg kg-1 and Mulch plots is additionally superior to no Mulch plots in terms offered P. ion Exchange capability (CEC) was additionally laid low with irrigation interval as I7 has half dozen.9 cmol (+) weight unit, that is above I4 that has the worth of five.82 cmol (+) weight unit, however Mulch and no Mulch plots indicates similar values of CEC. [5]

Reference

[1] Hatirli, S.A., Ozkan, B. and Fert, C., 2006. Energy inputs and crop yield relationship in greenhouse tomato production. Renewable Energy, 31(4), pp.427-438. (Web Link)

[2] Abdul-Baki, A.A. and Teasdale, J.R., 1993. A no-tillage tomato production system using hairy vetch and subterranean clover mulches. HortScience: a publication of the American Society for Horticultural Science (USA). (Web Link)

[3] Anton, A., Montero, J.I., Munoz, P. and Castells, F., 2005. LCA and tomato production in Mediterranean greenhouses. International Journal of Agricultural Resources, Governance and Ecology, 4(2), pp.102-112. (Web Link)

[4] Coordination between vapor pressure deficit and CO2 on the regulation of photosynthesis and productivity in greenhouse tomato production

Xiao-Cong Jiao, Xiao-Ming Song, Da-Long Zhang, Qing-Jie Du & Jian-Ming Li

Scientific Reportsvolume 9, Article number: 8700 (2019) (Web Link)

[5] R. Sanda, A., Ahmed Augie, M., Daniel, Y., Idris, A. and Muhammad, A. (2017) “Impact of Irrigation and Mulching on Tomato Yield and Soil Nutrient Status on Soils Treated with KCl and NaCl”, Asian Journal of Soil Science and Plant Nutrition, 1(3), pp. 1-9. doi: 10.9734/AJSSPN/2017/35268. (Web Link)

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