scholarly journals Efficiency of fertilizer application for high oleiс sunflower growing on typical types of typical low-humus

2021 ◽  
Vol 12 (1) ◽  
pp. 39-49
Author(s):  
A.V. Yunyk ◽  

The cultivation of high-oleic sunflower hybrids is promising due to the high competitiveness of sunflower on the international market and the growing demand for oil as the main product of its processing. Despite the importance of sunflower as one of the traditional crops of Ukraine, the technology of its cultivation now has many unsolved problems. Among the elements of cultivation technology aimed at increasing crop yields, research with high-oleic hybrids occupies a prominent place, requires the study of mineral nutrition levels, the need for sulfur, taking into account their impact on the oleic acid content. The purpose of the research is to establish the influence of sulfur on the background of different norms of mineral fertilizers on the formation of productivity of high-oleic sunflower plants on chernozems of typical low-humus right-bank Forest-Steppe of Ukraine. The research program provided for the establishment of a field experiment in 2015–2017. The research was conducted according to the scheme of two-factor field experiment. The scheme of experiments provides for the study of the following factors: factor A – rates of mineral fertilizers, factor B – sulfur application Methods. During the research, generally accepted methods were used for scientific research in crop production. Based on the research, it was found that the maximum amount of dry matter accumulates in the variants with the introduction of N90Р75К135+S30 and N120Р100К180+S30. The introduction of sulfur increases the yield of dry matter from 5.69 % to 9.27 %. The highest yield of sunflower seeds is formed by applying N90Р75К135+S30 – 4.12 t/ha. Further increase in fertilizer application rates does not lead to a significant increase in yield. Application of S30 on the background of N90Р75К135 allows to increase the yield of sunflower by 0.35 t per ha or 9.28 %. Our correlation-regression analysis of the obtained research results indicates a close correlation between the accumulation of dry matter in ВВСН 55–57 and ВВСН 65–67 and the yield level (respectively r = 0.917 and r = 0.972). The highest fat content in the seeds (49.7 %) with the maximum content of oleic acid (88.5 %) and the maximum yield of oil (2.05 t per ha) provides the cultivation of the hybrid EC Romantic with the introduction of N90Р75К135+S30.

2016 ◽  
Vol 1 (3) ◽  
pp. 15-19
Author(s):  
Васин ◽  
Aleksey Vasin ◽  
Карлов ◽  
Evgeniy Karlov ◽  
Васин ◽  
...  

Research objective is increasing the yield of barley varieties in the conditions of forest-steppe of the Middle Volga Region. Are the results of studies for 2014-2015 with the assessment of yield structure indicators, the dynamics of accumulation of dry matter, photosynthetic capacity and leaf area in different varieties of barley compared to pea for different backgrounds of mineral nutrition and processing of crops in different growth stimulants Avibit, Aminokat, Megamix N10 in the conditions of Middle Volga Region forest-steppe. In three-factor experience included two backgrounds of mineral fertilizers: no fertilizers, N45P45K45 (factor A), five barley varieties: Helios, Sonnet, Golden eagle, Hawk, and Bezenchukskaja 2 peas Flagship 12 (factor B), treatment of crops during vegetation is at tillering drugs: Avibit, Aminokat, Megamix N10 (factor C). The research identified that in all options the treatment of crops and application of fertilizers increase the performance of the photosynthetic activity and cause the greatest increase of all crops options for processing. Maximum yield over the study years provide barley varieties of Helios with the treatment of crops during vegetation drug Megamix N10 as fertilizer and N45P45K45 will be 2.43-2.90 t/ha.


Agrology ◽  
2021 ◽  
Vol 4 (3) ◽  
pp. 131-136
Author(s):  
V. V. Ivanina ◽  
M. Ya. Humentyk ◽  
V. M. Katelevsky

Miscanthus giant is a tall perennial herbaceous plant with a well-developed root system, which is used for biofuel production. The aim of the study was to establish the effect of gi-ant miscanthus in the first year of growing season on the state of soil organic matter, removal and balance of nutrients and biological productivity of crops for fertilization. A four-year survey of the condition of miscanthus plantations was conducted at ‘Veselo Podilska’ research and breeding station during 2016‒2019 in the forest-steppe zone of Ukraine. Indicators of biomass productivity of giant miscanthus and the state of fertility of the grant for fertilizer application in the area of the left-bank of the Forest-Steppe of Ukraine for the production of solid biofuels are characterized. In the first year of the growing season, giant miscanthus produces more organic matter in the root system than in its terrestrial biomass ‒ 2.5 and 1.6 tons of dry matter/ha, respectively. It was found that foliar fertilization with microfertilizers significantly increased the yield of terrestrial biomass of giant miscanthus in the background of mineral fertilizers. The highest biological yield of ground mass of giant miscanthus was achieved with the introduction of N60P60K60 and two foliar fertilization with microfertilizer Vympel-K, 0.5 l/ha: yield of terrestrial biomass ‒ 3.1 tons of dry matter/ha with the advantage of control without fertilizers ‒ 1.5 tons/ha. In the first year of cultivation miscanthus giant uses a small amount of nutrients from the soil: nitrogen ‒ 20.4‒33.8 kg/ha, phosphorus ‒ 3‒5.3 kg/ha, potassium ‒ 6.1‒12.4 kg/ha . The application of N30P30K30 ferti-lizers was sufficient to form a balanced and expanded balance of nutrients in the soil. The appli-cation of mineral fertilizers did not affect the dynamics of organic matter in typical chernozem. Growing giant miscanthus in the first year of the growing season ensured the stability of the or-ganic matter content in the soil at the level of 4.04‒4.11%. At the same time, the content of mobile phosphorus at the end of the growing season decreased by 17‒18 mg/kg, potassium ‒ by 13‒43 mg/kg of soil. Reducing the content of mobile forms of phosphorus and potassium in the soil at the end of the growing season leads to efficient use of plant nutrients, chemical transformation of phosphorus into insoluble compounds and non-exchange adsorption of potassium ions by the soil complex in the biocenosis of miscanthus.


2021 ◽  
Vol 37 ◽  
pp. 00186
Author(s):  
Vasily Vasin ◽  
Alexey Burunov ◽  
Natalia Vasina ◽  
Anatoly Strizhakov

The paper shows the research results related to the development of methods to increase the yield of spring wheat using Megamix liquid mineral fertilizers in the presowing treatment of seeds, treatment of crops on vegetation when introducing mineral fertilizers in seedbed preparation in the forest-steppe conditions of the Middle Volga region. The studies were carried out on the experimental field of Samara State University in 2017-2020. During the three-factor field experiment, dry matter accumulation and photosynthetic activity were evaluated with the analysis of photosynthetic potential and net productivity of photosynthesis. It was established that the best indicators are formed on versions with the treatment of seeding material with Megamix Seeds or Megamix Profi agents with subsequent double treatment on vegetation with Megamix Profi in the amount of 0.5l/ha (in the tillering phase) + Megamix Nitrogen in the amount of 0.5l/ha (in the flag leaf phase) against the background of N32P32K32 fertilizer application. The application of Megamix agents in the system of seed treatment + treatment of crops with Megamix stimulating agents provides the maximum accumulation of dry matter in the version of Megamix Seeds treatment and the treatment of crops with a mixture of Megamix Profi + Megamix Nitrogen – 591.9 g/m on soft crops and 622.6 g/m2 – durum wheat against the background of N32P32K32 application. The maximum photosynthetic potential of 0.968…1.091 million m2/ha per day is formed in these versions, and, consequently, the maximum yields with values of 3.73 t/ha on soft wheat crops and 3.44 t/ha on durum wheat crops. It was found that the use of liquid mineral fertilizers on all versions of the experiment reliably increases the yield of spring wheat.


Author(s):  
H.M. Hospodarenko ◽  
◽  
I.V. Prokopchuk ◽  
K. P. Leonova ◽  
V.P. Boyko

The productivity of agricultural crops is the most variable and integral indicator of their vital activity, which accumulates their genetic potential, soil fertility, weather conditions and components of agricultural technology. Soybean under optimal growing conditions (the reaction of the soil is close to neutral, sufficient phosphorus and potassium nutrition, the use of nitraginization) assimilates from the air about 70 % of the total nitrogen requirement. Therefore, it is believed that it is enough to apply only a starting dose of nitrogen fertilizers (20–40 kg/ha a. s.), to get a high yield with good indicators of grain quality. The results of studies of the influence of long-term (8 years) application of different doses and ratios of fertilizers in field crop rotation on podzolized chernozem in the conditions of the Right -Bank Forest-Steppe of Ukraine on the yield and quality of soybean seeds preceded by spring barley were presented. It was found that crop yields could be increased by 18–77 % owing to different doses, ratios and types of fertilizers. The highest indicators of seed yields for three years of the research (3,02 t/ha) were obtained under the application of mineral fertilizers at a dose of N110P60K80 per 1 ha of crop rotation area, including under soybean – N60P60K60. Exclusion of the nitrogen component from the complete fertilizer (N60P60K60) reduced its yield by 26 %, phosphorus – by 17, and potassium by 11 %. There was no significant decrease in soybean yield in the variant of the experiment with a decrease in the proportion of potassium in the composition of complete mineral fertilizer (N60P60K30) for three years of study. The largest mass of 1000 soybean seeds was formed at doses of N60К60 fertilizers, and their protein content — under the application of complete mineral fertilizer in doses of N60P60K60 and N60P60K30.


Crop Science ◽  
2001 ◽  
Vol 41 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Yolanda López ◽  
Olin D. Smith ◽  
Scott A. Senseman ◽  
William L. Rooney

Author(s):  
A.V. Melnyk ◽  
S.V. Zherdetska ◽  
Shahid Ali ◽  
Gulam Shabir ◽  
S.O. Butenko

The experimental studies were carried out on the fields of the Sumy NAU Training Research and Production Complex (TRPC) during 2016–2018.The soil of the experimental plot is typical deep-medium humus, large-dusty and medium-loam black soil on forest trees. The subject of the research was a white mustard variety of Oslava created at the Institute of Feed and Agriculture of the Podillya NAASU, entered in the Register of varieties suitable for cultivation in Ukraine in 2010. The aim of the research is to optimize the nutrition of the white mustard variety of Oslava through the complex application of mineral fertilizers and foliar fertilization under the conditions of the northeastern forest-steppe of Ukraine. The analysis of weather conditions, in particular the hydrothermal coefficient of Selyaninov (HTC), established that 2016 season was wet (HTC = 1.60), 2017 and 2018 were dry (HTC = 0.59 and 0.46). During the research, the cultivation technology was generally accepted in the experimental area, except for the elements studied. The results of the three-year study on the influence of foliar fertilizing under different mineral nutrition backgrounds on the yield of the white mustard variety Oslava are presented. It was found that the application of mineral fertilizers and complex fertilizers for the foliar feeding had a positive effect on the morphometric parameters of the white mustard, in particular, increased the plant height and the number of branches of the first order. The use of mineral fertilizers at the rate of N30P30K30 provided an increase in the yield by 0.34 t/ha, N60P60K60 – by 0.55 t/ha, N90P90K90 – by 0.61 t/ha on an average compared to the control. Therefore, for the maximum yield (2.14–2.21 t/ha) with a mass of 1000 seeds (5.39–5.54 g) of the white mustard under the conditions of the Northeastern Forest-Steppe of Ukraine, foliar fertilizing of Vuxal boron (3.0 l/ha) + Vuxal bioaminoplant 3.0 l/ha) and Spectrum B + Mo (2.0 l/ha) + Spectrum Ascorist (3.0 l/ha) should be applied on the background of N60-90P60-90K60-90, what provided an increase in the yield compared to the control of 0.58-0.65 t/ha.


1991 ◽  
Vol 31 (6) ◽  
pp. 777
Author(s):  
MDA Bolland

The effect of superphosphate applications (0, 25, 50, 75, 100 and 125 kg P/ha to the soil surface) on the dry matter (DM) herbage production of dense swards of subterranean clover (Trifolium subterraneum cv. Junee) and yellow serradella (Ornithopus compressus cv. Tauro) was measured in a field experiment on deep, sandy soil in south-western Australia. The swards were defoliated with a reel mower at weekly intervals from 88 to 158 days after sowing, to a height of 2 cm for the first 9 cuts, 4 cm for the tenth cut and 5 cm for the eleventh cut. Yellow serradella was more productive than subterranean clover. Consequently, for the relationship between yield and the level of phosphorus (P) applied, yellow serradella supported larger maximum yields and required less P than subterranean clover, to produce the same DM herbage yield. Maximum yields of yellow serradella were 12-40% larger. To produce 70% of the maximum yield for yellow serradella at each harvest, yellow serradella required about 50% less P than subterranean clover. However, when yields were expressed as a percentage of the maximum yield measured for each species at each harvest, the relationship between yield and the level of P applied was similar for both species, and they had similar P requirements.


2013 ◽  
Vol 594-595 ◽  
pp. 356-361
Author(s):  
Rozaini Abdullah ◽  
Farizul Hafiz Kasim ◽  
Siti Nur Amalieya Syaza Mohd Zuki ◽  
Noor Hajarul Ashikin Shamsuddin

The price fluctuation and negative environmental effect of mineral oil-based lubricant are the main factors which instigate the research on high-oleic vegetable oil as its possible replacement. In this study, the factors involved in blending process of waste cooking oil (WCO) and Jatropha curcas oil (JCO) as biolubricant basestock were investigated using 2-level factorial design. The molar ratio of WCO to the JCO (WCO:JCO), stirring speed and blending times were the three factors studied. The WCO:JCO, stirring speed and the blending time were found to be significant to the increased of oleic acid content in the basestock. The highest percentage of oleic acid achieved was 53.31 % at molar ratio of WCO:JCO at 20:80, 350 rpm and time at 30 minutes. Thus this study exposed the potential of new blending oil which are comparable with other vegetable and mineral oils as base stock for bio-lubricant in term of fatty acid compositions.


2015 ◽  
Vol 10 (4) ◽  
pp. 65-69
Author(s):  
Митрофанов ◽  
Eduard Mitrofanov ◽  
Коршунов ◽  
Aleksandr Korshunov ◽  
Владимиров ◽  
...  

The effectiveness of herbicides in spring barley crops on different nutrition backgrounds was studied in field experiments on dark gray forest soil of medium loamy particle size distribution in the conditions of Volga-Vyatka region. It is revealed that on both backgrounds of fertilizer application the barley formed a maximum yield, when applying the herbicide Bomba. When using this herbicide in making mineral fertilizers N54P54K54 the productivity was 2.71 tons per hectare and a dose N70P70K70 – it was 2.83 tons per hectare. On average for three years, the maximum (11.35%) protein content was appeared in the preparation by Sekator turbo herbicide on the background of fertilizer application of N70P70K70.


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