scholarly journals Economic efficiency of seedling method of growing Melissa officinalis L. under drip irrigation

2020 ◽  
pp. 125-131
Author(s):  
N. Pryvedeniuk

An economic evaluation of seedling cultivation of lemon balm under drip irrigation was carried out. The profitability of growing the crop with different number of planted plants per unit area is calculated. It was found that the costs in the first year of growing lemon balm can range from 165.5 to 209.4 thousand UAH/ha, for the second year of cultivation from 154.8 to 171.3 thousand UAH/ha. The highest economic indicators were obtained in the variant with a planting density of 55.6 thousand plants/ha, where the level of profitability was 24% in the first year and 118% in the second year of cultivation. The cost structure is analyzed and the factors that most significantly affect the cost of raw materials are identified. The high efficiency of the seedling method of growing lemon balm in the conditions of drip irrigation as a means of intensification of growing technology is proved.

Author(s):  
N. V. Pryvedenyuk ◽  
A. P. Shatkovskyi

The influence of plant nutrition area and mineral fertilizer rates on the productivity of St. John's wort (Hypericum perforatum L.) by using transplant reproduction method in the conditions of drip irrigation was studied. It was proved that the transplant method of cultivation of St. John's wort under drip irrigation is a very effective method of reproduction of this crop. Four variants of  planting density per unit area were studied: 42 thousand plants / ha (cultivation scheme 60x40 cm), 56 thousand plants / ha (60x30 cm), 83 thousand plants / ha (60x20 cm) and 167 thousand plants / ha (60x10 cm). Yield recording of raw materials (air-dry tops) was carried out in the phase of mass flowering. In the first year of vegetation this period was in the first decade of August, in the second year – in the second decade of June. It was found that the increase in the number of planted plants of St. John's wort per 1 ha contributed to the increased plantation productivity. When having a cultivation plant density of 42,000 plants / ha, the yield of dry grass in the first year of vegetation was 3,02 t / ha. Increasing the number of plants to 56 thousand plants / ha provided 3,26 t / ha of raw materials. The highest yield of dried St. John's wort – 3,76 t / ha in the first year of vegetation was obtained in the variant with the largest number of planted plants per unit area - 167 thousand plants / ha. In the second year of vegetation of St. John's wort in the variant with the lowest plant density of 42 thousand plants / ha, the yield was 3,65 t / ha. The most productive plantation of the second year of vegetation was in the variant with a plant density of 83 thousand plants / ha, where the yield of dry raw materials was 3,96 t / ha. A further increase in the number of plants per unit area led to a decrease in crop yields. The influence of four variants of the main application of mineral fertilizers on the productivity of St. John's wort was also studied: N0P0K0 (reference), N60P60K60, N120P120K120 and N180P180K180. It was found that with increasing fertilizer application rate, the yield of dry raw materials increased. The most favorable conditions for growth and development of plants of St. John's wort developed in the variant with the maximum rate of fertilizer application - N180P180K180, where the yield of dry raw materials in the first year was 3,31 t / ha, and in the second year – 4,15 t / ha, which exceeded the reference result (without fertilizers) by 0,61 t / ha and 0,84 t / ha, respectively.


Author(s):  
A. P. Shatkovskyi ◽  
N. V. Pryvedeniuk ◽  
L. A. Hlushchenko

The article presents the results of experimental studies on optimizing the planting density of medicinal plants of the Lamiaceae Juss family. (Gubotsviti) as a factor in the formation of their productivity in conditions of drip irrigation. Research work has been carried out with the most common medicinal crops of this family: oregano (Origanum vulgare L.), lemon balm (Melissa officinalis L.), peppermint (Mentha piperita L.) and thyme (Thymus vulgaris L.) in the conditions of the Left-Bank Forest-Steppe of Ukraine during 2016-2020 on the lands of the Experimental Station of Medicinal Plants of the Institute of Agroecology and Nature Management of NAAS (Lubny district of Poltava region) with the participation of the Institute of Water Problems and Land Reclamation of NAAS. In a one-factor field experiment, 8 elementary variants of planting density were studied: from 33 thousand / ha to 222,0 thousand /ha. Studies have shown that, despite genetic relatedness, members of the family Lamiaceae Juss. have a demonstrably different response to the density of planting under drip irrigation. Thus, the highest yield of dried oregano grass for both the first and second year of cultivation was obtained in the variant with a planting density of 166,7 thousand plants / ha. The most productive crops of lemon balm in the first and second years of cultivation were at a density of 83,3 thousand plants / ha. The highest yield of thyme for the first year was obtained in the variant of 222,0 thousand plants / ha, and for the second year - in the variant with a density of 111,0 thousand plants / ha. Peppermint formed the highest productivity at densities of 55,6 thousand plants /ha in both the first and second year of the growing season. A new scientific result is the obtained dependences of the yield of medicinal plants of the family Lamiaceae Juss. from the number of plants per unit area, which are described by the corresponding mathematical equations.


Author(s):  
N. V. Pryvedeniuk ◽  
A. P. Shatkovskyi

Oregano (Origanum vulgare L.) – is a perennial medicinal plant, its medicinal raw material is the aerial part collected in the flowering phase. When laying industrial plantations of oregano, the seedling method of propagation is mainly used, since after germination the plants slowly develop and compete weakly with weeds. The condition for survival of seedlings is high soil moisture, which can be achieved only with its artificial wetting - irrigation. An analysis of the literature indicates that today the issue of the cultivation pattern and nutrition area of oregano in the conditions of drip irrigation is not well understood. The aim of the conducted experimental studies was to establish the influence of the method of growing seedlings and plant’s alimentationon area on the growth and development of oregano under drip irrigation. The main research method is a field experiment, supplemented by analytical and static data processing methods. According to research’s results, it has been established that an increase in the area of plant nutrition contributes to an increase in the mass of the aerial parts and the area of leaves, and also reduces the height of plants during both the first and second years of vegetation. It was proved that the most favorable conditions for plant’s growth and development under the conditions of drip irrigation were in the variant with the largest nutrition area with planting density of 41,7 thousand plants·ha-1 (60x40 cm pattern). The mass of the aerial parts of plants with this method of growing in the first year of vegetation was 110,5-133,0 g ·plant-1 with the largest leaf area – 0,287-0,346 m2·plant-1 and 218,1-328,7 g ·plant-1, 0,568-0,855 m2·plant-1, respectively - in the second year of vegetation. The maximum height of plants – 37,0-37,7 cm in the first year of plant vegetation and 68,5-72,6 cm in the second year of vegetation was established in the variants with the smallest plant nutrition area: with a growing scheme of  60x10 cm (166,7 thousand ·ha-1). The smallest plant’s height in the first year of vegetation was 31,1-33,5 cm, in the second year – 37,5-48,4 cm in the variant of growing scheme 60x40 cm (41,7 thousand plants ·ha-1). When studying the influence of the method of growing seedlings on the mass of the aerial part and the area of leaves, their high parameters were found in variants with the laying of seedlings from spring sowing cassettes, where the mass of the aerial part was 103,8 g / plant with a leaf area of 0,236 m2 ·plant-1. The minimum weight of the aerial part is 92,3 g·plant-1 with a leaf area of 0,210 m2 ·plant-1 was found in variants with seedlings on cassettes from the autumn sowing period.


2019 ◽  
Vol 23 (4) ◽  
pp. 692-696
Author(s):  
A.A. Sidorov

Annotation. Chronic obstructive pulmonary disease (COPD) makes a significant economic burden for the patients, their families and for the healthcare systems of different countries in general. At the same time the level of adherence to basis therapy is 30–40%. Aim of the study is to determine cost effectiveness of the measures for adherence to COPD treatment increase. 156 patients with COPD (III–IV GOLD) were included into study. The duration of the study was 13 months and it consisted of 6 visits. During each visit the adherence to treatment was measured according to value of inhaler dose counter. The instruction regarding necessity to adhere to basis therapy regimen as well as training of correct inhaler use technique were conducted. The costs for the patient with COPD treatment were calculated for 1 year before the start of the patients’ participation in the study (first year) and during their participation in the study (second year). The average value and standard error of average value were calculated for all the parameters. The comparison of parameters of intergroup differences was made with use of T-test for dependent samples and criterion χ2. It is shown that the adherence to COPD treatment rose from 44.41±1.07% to 75.21±0.78%, i.e. by 30.8% (p<0.001). On the background of adherence increase total cost for the patients treatment due to COPD diminished from 20304.88 ± 976.68 UAH to 9258.13 ± 507.90 UAH, i.e. by 54.4% during the year. Thus, adherence to COPD treatment increase permits to diminish the annual treatment cost for this disease significantly (by 54.4%). Detection of patients' visits frequency to medical institution in order to maintain the level of adherence to treatment which was already achieved has the prospect of further research.


Author(s):  
Nikolay Dubenok ◽  
Aleksandr Gemonov ◽  
Aleksandr Lebedev

One of the possible ways to ensure safety is to use drip irrigation, which also improves the quality and productivity of crops. The aim of the work is to study the availability of moisture in the soil for the growth and development of cream seedlings grown in a fruit nursery in the conditions of the Non-Black Soil Zone of Russia. Research conducted on the lands of the educational experimental farm of the fruit-growing laboratory «Michurinsky Garden» of the Russian State Agrarian University – Moscow Timiryazev Agricultural Academy in 2018 and 2019. The results of field experience indicate that for a more rational use of irrigation water and obtaining highquality vegetable oils in the nursery, it is recommended to use an irrigation regime with maintaining soil moisture in the range of 80–100 % lowest moisture capacity with a dredging depth of 30 cm in the first year and 40 cm in the second year.


2021 ◽  
pp. 134-139
Author(s):  
N. Pryvedeniuk ◽  
L. Hlushchenko ◽  
V. Тrubka

In the Forest-Steppe Zone of Ukraine, a study was carried out to establish the effect of mineral fertilizers and drip irrigation on the yield of dry raw material. It was found that irrigation significantly increases productivity of althaea, by eliminating the deficit of soil moisture in critical periods of growth and development. The yield increase caused by the use of drip irrigation in the first year of vegetation of the crop was 1.27–1.98 t/ha for dry grass, for leaves — 0.69–1.17 t/ha, for roots 0.22–0.39 t/ha. For the second growing season, the yield increase was: 1.52–4.7 t/ha for grass, 0.46–1.35 t/ha for leaves and 1.5–2.76 t/ha for roots. It was also found that increase of the mineral fertilizers main application dose caused increase of the yield. The highest yield of dry raw material of the culture was obtained in both the first and second years of the growing season with the introduction of N180P180K180. With the application of mineral fertilizer at a dose of N180P180K180 under conditions of drip irrigation, the yield of dried althaea grass was 8.09 t/ha, leaves — 3.88 t/ha, roots — 3.08 t/ha, which exceeded the option without fertilizers and without irrigation by 4.08 t/ha for grass, 2.04 t/ha for leaves, 1.44 t/ha for roots. The highest yield was obtained in the second year of vegetation using the variant with the application of the highest dose of mineral fertilizers under drip irrigation, where the yield of dry grass was 15.78 t/ha, leaves — 4.42 t/ha, roots — 6.24 t/ha. On the plantation of the second year of vegetation in the variant without irrigation and without fertilizers, the yield of raw materials was the lowest. It was 6.85 t/ha for grass, 1.88 t/ha for leaves and 2.12 t/ha for roots.


1969 ◽  
Vol 72 (1) ◽  
pp. 31-40
Author(s):  
Tillak Persaud ◽  
Megh R. Goyal ◽  
Philippe Bellerive

This report presents the cost of a drip irrigation system for vegetable farming in Puerto Rico. The total initial cost of establishing an automatic drip irrigation system on a 4.36 hectare farm was $28,639.03, 10.79% of which was for pump house facilities; 3.1% for filter with accessories; 2.95% for chemigation facilities; 81.38% for in field materials; and 1.75% for installation. The first year cost per hectare was $1,976.72, which included depreciation, interest, maintenance and installation. A computer program was developed to calculate these costs.


Author(s):  
Vladimir Zolotarev

On sod-podzolic medium-loamy soils of the Central Non-Chernozem region of Russia with an average availability of mobile forms of phosphorus and an average close to low potassium content, high efficiency of using potash fertilizer together with phosphorus on birdsfoot trefoil seed crops was established. Effective doses of phosphorus-potassium fertilizers, providing an increase in seed yield in the first year by 42–47% and, according to the aftereffect, in the second year by 17–33%, are the application of P30–60K90–120. Keywords: Birdsfoot trefoil (Lotus corniculatus L.), seed herbage, phosphoric and potash mineral fertilizers, yield, seeds, sowing qualities.


Author(s):  
Fernando N. Cunha ◽  
Nelmício F. da Silva ◽  
Antonio E. C. Sousa ◽  
Marconi B. Teixeira ◽  
Frederico A. L. Soares ◽  
...  

ABSTRACT Water is limiting for growth and essential for photosynthesis. Crop yield depends on the available amount of this resource and on the efficiency of its use by the plant. This study aimed to evaluate the vegetative growth and the gross yield of sugar and ethanol from sugarcane along cane-plant and ratoon cane cultivation, under different irrigation depths for water replenishment, with and without nitrogen (N) application by subsurface drip irrigation. The experimental design was randomized blocks, analyzed in a split-plot scheme, with four replicates, in which the plots were represented by the interaction: irrigation depths (0, 25, 50, 75 and 100% water replenishment of the field capacity), with and without N fertigation, and subplots were represented by 9 evaluation periods (90, 120, 150, 180, 210, 240, 270, 300 and 330 days after planting/days after the first cutting for ratoon cane). The gross yields of sugar and alcohol for water replenishments below 93 and 97%, respectively, are higher in sugarcane of first year than in sugarcane of second year. Fertigation provided greater vegetative growth of ratoon cane.


2019 ◽  
pp. 295-300 ◽  
Author(s):  
Татьяна (Tat'yana) Владимировна (Vladimirovna) Хуршкайнен (Khurshkaynen) ◽  
Елена (Elena) Михайловна (Mikhaylovna) Андреева (Andreyeva) ◽  
Светлана (Svetlana) Карленовна (Karlenovna) Стеценко (Stetsenko) ◽  
Геннадий (Gennadiy) Григорьевич (Grigor'evich) Терехов (Terekhov) ◽  
Александр (Aleksandr) Васильевич (Vasil'evich) Кучин (Kuchin)

The results of studying the influence of natural plant growth regulators Verva  and Verva-spruce from coniferous wood greenery on the growth and development of Pinus sylvestris L. pine seedlings under the conditions of a forest nursery are presented. A comparative analysis of morphometric indices and accumulation of phytomass in the first two years of growth of pine seedlings grown from seeds treated with coniferous biopreparations of various concentration (experience) and without processing (control) is lead. Presowing treatment of seeds with Verva and Verva-spruce preparations at concentrations of 0.1 and 0.25 mL/kg by soaking within 6 hours has led to prolonged effect on growth rates of pine seedlings. Experimental seedlings had higher increments of the aerial part compared to the control: the height of the seedling tree of the first year was 40–84% higher, the second year – 29–47%; the diameter increased by 40–43% in one-year seedlings, and by 2–40% in biennial ones. High values of biometric parameters in two-year seedlings in the experimental versions correspond to the requirements for planting material of coniferous plants. The use of preparations Verva and Verva-spruce for seed presowing treatment will shorten the period of seedling cultivation and the cost of planting material.


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