Operating Profit and Net Profit: Measurements of Profitability

Jayathilaka, Anuruddika K. K. R.

doi:10.4236/oalib.1107011

Cited by 13 publications

(11 citation statements)

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“…Vitamin C content in the bulb was determined based on the 2.6 dichlorophenol indophenol titration method which was previously described by Denre (2014). Net profit was calculated according to Jayathilaka (2020). The cost of raw materials (inorganic fertilizers, DPR, plant protection drugs, seeds, water irrigation), labor and product sales were calculated according to 2021 prices.…”

Section: Data Collectionmentioning

confidence: 99%

Effects of Water Irrigation Methods Combined with Mulching Materials on the Growth and Yield of Allium chinense on Acid Sulfate Soil

Thuy,

Thang,

Thuc

2024

ASD

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Background: To determine the optimal water irrigation method combined with covering material for Allium chinense growth and yield on acid sulfate soil. Methods: The field experiment was carried out in a randomized complete block design, which include four treatments, each with four replications. The plot size was 83.3 m2 (19.6 m in length, 4.25 m in width). Treatments were flooding irrigation combined with rice straw covering (FI-RS), flooding irrigation combined with Eleocharis dulcis covering (FI-ED, control), spray irrigation combined with rice straw covering (SI-RS) and spray irrigation combined with Eleocharis dulcis covering (SI-ED). Result: Experimental results showed that Allium chinense planted on the treatment of SI increased clump height (47.2 cm) and weight of bulb (4.38 g), gave the highest yield of 40.9 t ha-1 and increased up to 25.9% in comparison to planted in conventional method (control). The spray irrigation method was more suitable than the flooding irrigation method for growing Allium chinense. Vitamin C content in bulbs was not changed under different water irrigation methods combined with mulching materials.

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Section: Data Collectionmentioning

confidence: 99%

Effects of Water Irrigation Methods Combined with Mulching Materials on the Growth and Yield of Allium chinense on Acid Sulfate Soil

Thuy,

Thang,

Thuc

2024

ASD

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“…The soil samples were collected from five places in plot then dried and mixed together for pH and nutrion analyzation. Net profitt = revenue " expenses (Jayathilaka, 2020). The cost of raw materials (inorganic fertilizers, DPR, plant protection drugs, seeds, water irrigation), labor and product sales were calculated according to 2022 prices.…”

Section: Data Collectionmentioning

confidence: 99%

The Effectiveness of Dolomite Phosphate Rock on Growth and Yield of Black Sesame (Sesamum indicum L.) in Paddy Field

Thúc¹,

Khương²

2023

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Background: The study was carried out to determine the amount of the dolomite phosphate rock (DPR) on the growth and seed yield of black sesame in a paddy field. Methods: A randomized complete block design was used for the field experiment, which included four treatments, each with four replications. Treatments were applied without the DPR and with 0.25, 0.5 and 1.0 t ha-1 DPR. Result: Experimental results showed that sesame plants were fertilized with the following formula: 60 N x 60 P2O5 x 30 K2O kg ha-1. Moreover, the addition of 0.5 t ha-1 DPR increased plant height (129.7 cm), the number of leaves and pods per plant (47.4 pods), total chlorophyll content in leaves (12.4 µg/cm2), the number of seeds per pod and seed yield (1.61 t ha-1). The phosphate content increased in the stem but not in the leaves and seeds. The pH of the soil (0-20 cm) and the amount of NH4+, NO3- and PAvailable were also increased.

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“…The investment payback time (IPT) represents the number of years in which the expenses with the arrangement of the two types of arrangement for drip irrigation (ADP and ATS) are recovered by the annual net profit (ANP) obtained, as a result of capitalizing the obtained yield. To determine the IPT expressed in years, the relation (11) was used [87,88]:…”

Section: Effectiveness Of Measures To Reduce the Effects Of Climate C...mentioning

confidence: 99%

Effectiveness of Measures to Reduce the Influence of Global Climate Change on Tomato Cultivation in Solariums. Case Study: CrișUrilor Plain, Bihor, Romania

Cărbunar¹,

Mintaș²,

Sabău³

et al. 2022

Preprint

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Tomatoes, one of the most appreciated vegetables consumed, are crops well adapted for cultivation in arid and semi-arid conditions, the success of large yields is guaranteed by covering water consumption through irrigation. Solar Pumps - SP are driven by Photovoltaic Panels - PV (SPAPV), eliminating the dependence on electricity or diesel; they are environmentally friendly because they generate carbon-free electricity and the cost of operation and maintenance is lower. In order to preserve the water administered by drip to the tomato crop grown in solariums, mulching is used. In Husasău de Tinca, in the Crișurilor Plain, cultivation of tomato varieties without mulching (WM) and with mulching with black foil (MBF) were studied. To answer the question "How effective are water conservation measures in terms of energy independence?", two variants of SPAPVs, direct pumping (ADP) and storage tank (AST) were simulated. Considering the conditions in the solariums, tomato crops do not benefit from the contribution of precipitation, therefore it is proposed to determine the water consumption of tomatoes (ETRo), using the temperatures inside the solarium. In 2016, the average temperatures during the vegetation period were observed with an insurance of over 20 %, the irrigation norms were 6945.7 m3 ha-1, for the WM variant and 6594.0 m3 ha-1 for the MBF variant, respectively. Specific Investment (SI) is 214,795 Euro ha-1 in case of ADP and respectively 202,990 Euro ha-1 in case of ATS. The payback period (IPT) is between 2.68 years and 2.53 years for the ADP variant and between 1.63 years and 1.54 years for the ATS variant, respectively. The indications for water use and irrigation water use show that in the MBF variant the water administered by localized irrigation is better utilized than in the WM variant. In the conditions of Crișurilor Plain, the best solution for the distribution of water in solariums, with the help of SPAPVs is the mulching system of tomatoes grown in solariums (MBF) and the arrangement of the drip irrigation system with a water storage tank (ATS).

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Operating Profit and Net Profit: Measurements of Profitability

Cited by 13 publications

References 0 publications

Effects of Water Irrigation Methods Combined with Mulching Materials on the Growth and Yield of Allium chinense on Acid Sulfate Soil

Effects of Water Irrigation Methods Combined with Mulching Materials on the Growth and Yield of Allium chinense on Acid Sulfate Soil

The Effectiveness of Dolomite Phosphate Rock on Growth and Yield of Black Sesame (Sesamum indicum L.) in Paddy Field

Effectiveness of Measures to Reduce the Influence of Global Climate Change on Tomato Cultivation in Solariums. Case Study: CrișUrilor Plain, Bihor, Romania

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