CORRELATION OF GRAIN AND LEGUMINOUS CROPS YIELD FROM AGROCHEMICAL SOIL PARAMETERS AND WEATHER CONDITIONS

2015 ◽  
Vol 10 (2) ◽  
pp. 128-135
Author(s):  
Муратов ◽  
Marsel Muratov ◽  
Гилязов ◽  
Minnegali Gilyazov
Keyword(s):  
Moisture Content ◽  
Spring Wheat ◽  
Negative Correlation ◽  
Negative Impact ◽  
Weather Conditions ◽  
Winter Rye ◽  
Hydrothermal Coefficient ◽  
Leguminous Crops ◽  
Crops Yield ◽  
Selyaninov Hydrothermal Coefficient

This work is dedicated to the evaluation of dependence of grain and leguminous crops yield from the main agrochemical parameters of soil and weather conditions. Proceedings on agrochemical survey of arable soils, crop yields, and the main agro-meteorological indicators of Baltasi municipal district of the Republic of Tatarstan for 1980-2010 years were generalized. Over the years aproductivity of grain and leguminous crops in the region has increased for 1.73-2.25 times, increasing the yield for 37-49 kg per hectare grain per year. The productivity of all crops is most closely connected with the average content of mobile potassium (r = 0.83-0.90) and phosphorus (r = 0.51-0.78). A moderate negative correlation was found between yield of studied species and share of arable land, having an acid reaction (r = - 0.32-0.48). During the study period the moisture content of the Baltasi municipal district of Tatarstan often (recurrence is 63.4%) was characterized as insufficient or arid. We found a negative correlation of spring crops productivity (spring wheat, barley, pea) from the amount of active temperatures, which indicates that heat supply of the area is not a limiting factor for these crops, and a growing fever of the season often has a negative impact. The tightness and direction of the correlation the productivity of spring crops and peas from the amount of rainfall is changing dramatically by periods: if the amount of precipitation in May has a very weak positive effect on the productivity (r = 0.16-0.17), the rain, falling during maturation and harvesting, have a negative impact (r = -0.14 and -0.21). The largest positive impact on the spring crops yield had a rainfall of June. Especially the correlation was noticeable for pea (r = 0.64) and spring wheat (r = 0.58). Compared with the June precipitation, total precipitation during the growing season had on the yield of spring crops significantly less impact (r = 0.32-0.53). The productivity of spring crops was less dependent on the amount of annual rainfall (r = 0.28-0.49). The productivity of spring crops and peas are most closely correlated with Selyaninov hydrothermal coefficient in June (r = 0.50-0.65), and winter rye - in August before sowing (r = 0.45). Therefore, to predict the effects of the prevailing weather conditions on productivity of certain crops, it should be used the hydrothermal coefficient of Selyaninov of the relevant month. According to the yield correlation coefficients from Selyaninov hydrothermal coefficient on vulnerability to adverse weather conditions (insufficient moisture content, high temperature) experienced species can be arranged in the next growing rate: peas <spring wheat <barley <winter rye.

scholarly journals Soluble carbohydrates in cereal (wheat, rye, triticale) seed after storage under accelerated ageing conditions

2011 ◽  
Vol 79 (1) ◽  
pp. 21-25
Author(s):  
Agnieszka I. Piotrowicz-Cieślak ◽  
Maciej Niedzielski ◽  
Dariusz J. Michalczyk ◽  
Wiesław Łuczak ◽  
Barbara Adomas
Keyword(s):  
Moisture Content ◽  
Spring Wheat ◽  
Soluble Sugars ◽  
Dry Mass ◽  
Soluble Carbohydrates ◽  
Accelerated Ageing ◽  
Winter Rye ◽  
Seed Moisture Content ◽  
Winter Triticale ◽  
Seed Moisture

Germinability and the content of soluble carbohydrates were analysed in cereal seed (winter rye, cv. Warko; spring wheat, cv. Santa; hexaploid winter triticale, cv. Fidelio and cv. Woltario). Seed moisture content (mc) was equilibrated over silica gel to 0.08 g H<sub>2</sub>O/g dry mass and stored in a desiccator at 20<sup>o</sup>C for up to 205 weeks or were equilibrated to mc 0.06, 0.08 or 0.10 g H<sub>2</sub>O/g dm and subjected to artificial aging at 35<sup>o</sup>C in air-tight laminated aluminium foil packages for 205 weeks. It was shown that the rate of seed aging depended on the species and seed moisture content. The fastest decrease of germinability upon storage was observed in seed with the highest moisture level. Complete germinability loss for winter rye, winter triticale cv. Fidelio, winter triticale cv. Woltario and spring wheat seed with mc 0.10 g H<sub>2</sub>O/g dm<sup>3</sup> occurred after 81, 81, 101 and 133 weeks, respectively. Fructose, glucose, galactose, myo-inositol, sucrose, galactinol, raffinose, stachyose and verbascose were the main soluble carbohydrates found in the seed. The obtained data on the contents of specific sugars and the composition of soluble sugars fraction in seed of rye, wheat and triticale did not corroborate any profound effect of reducing sugars, sucrose and oligosaccharides on seed longevity.

scholarly journals Impact of weather conditions and sowing method on seed performance of meadow clover in the Middle Urals

2021 ◽  
Vol 59 (2) ◽  
pp. 178-185
Author(s):  
N. I. Kasatkina ◽  
Z. S. Nelyubina ◽  
I. Sh. Fatykhov
Keyword(s):  
Seed Production ◽  
Negative Impact ◽  
Weather Conditions ◽  
Climatic Conditions ◽  
Middle Urals ◽  
Seed Productivity ◽  
Weather Factors ◽  
Seed Formation ◽  
Hydrothermal Coefficient ◽  
Hydrothermal Regime

Seed production of perennial leguminous herbs, including meadow clover (Trifolium praténse), is complicated due to the natural and climatic conditions of the region. In Middle Urals, only two to three years out of ten are favorable for seed production. Estimation of influence of the hydrothermal regime of the growing season and the sowing method has been carried out in the experimental crop rotation of the Udmurt Research Institute of Agriculture, UdmFRC Ural Branch of the RAS with the seed grass stand of meadow diploid clover varieties Pelican and Trio, tetraploid variety Kudesnik It has been revealed that seed productivity of meadow clover on sod-podzolic medium loamy soil was more dependent on the prevailing hydrothermal regimes of vegetation periods, as well as on the variety’s ploidy. A relatively high seeds yield of the Pelican variety (2n) 444-593 kg/ha and Kudesnik variety (4n) 101-116 kg/ha was formed under conditions of insufficient and optimal moisture supply of the vegetation period with a hydrothermal coefficient of 0.67-1.41. With increase in hydrothermal coefficient p to 1.56-1.69, the seeds yield of the Trio variety (2n) decreased to 251-328 kg/ha, of the Kudesnik variety (4n) - to 77-91 kg/ha. Under the same conditions, according to the hydrothermal regime of vegetation, the Kudesnik clover variety formed a relatively larger number of stems and heads, however, the heads productivity was significantly inferior to diploid varieties, which ultimately affected its seed productivity. Sowing diploid varieties of meadow clover Pelican and Trio in the usual ordinary way (15 cm), tetraploid variety Kudesnik in a wide-row way (30 cm) allowed increasing seeds yield and thereby neutralizing the negative impact of weather factors. Sstudy of the seed formation features of meadow clover varieties differing in ploidy in contrasting agrometeorological conditions may be of interest in developing methods for optimizing their seed productivity.

scholarly journals DISSEMINATION AND DEVELOPMENT OF SEPTORIOSIS IN SPRING WHEAT, DEPENDING ON WEATHER CONDITIONS IN THE NORTH OF KAZAKHSTAN

2020 ◽  
Vol 55 (1) ◽  
pp. 5-9
Author(s):  
S. A. Babkenova ◽  
A.T. Babkenov ◽  
A.A. Shabdan
Keyword(s):  
Spring Wheat ◽  
Negative Correlation ◽  
Main Product ◽  
Weather Conditions ◽  
Wheat Grain ◽  
Wheat Varieties ◽  
Protective Measures ◽  
The North ◽  
Wheat Leaves ◽  
Favorable Weather

Wheat is the main product in 53 countries, including in our country. The leading producers of wheat grain in Kazakhstan are Akmola, Kostanay and North Kazakhstan regions. The virulence of previously weakly pathogenic pathogens, for example, spotted wheat leaves caused by many imperfect fungi from the genera Septoria and others, has increased. The purpose of the study is to conduct phytosanitary monitoring of the spread and development of spring wheat septoria and to study the influence of weather conditions on the development of the disease. The technique is generally accepted in phytopathological studies. In 2018, favorable weather conditions were elaborated for the development of Septoria on spring wheat. A high correlation in all studied varieties was observed between the degree of manifestation of the disease and the number of days with precipitation > 1 mm. 2019 was an unfavorable year for the development of septorious spots, the disease was depressed. A close negative correlation was found on all wheat varieties between the degree of development of the disease and the number of days with precipitation > 1 mm. Phytosanitary monitoring of the spread and development of spring wheat septoria is required annual monitoring to conduct a complex of preventive and protective measures to limit them.

scholarly journals THE INFLUENCE OF WEATHER CONDITIONS OF THE GROWING SEASON ON THE YIELD OF SPRING WHEAT AND THE EFFECTIVENESS OF NITROGEN FERTILIZER IN THE FOREST-STEPPE OF THE OB RIVER REGION

2020 ◽  
pp. 33-41
Author(s):  
I. N. Sharkov ◽  
S. A. Kolbin
Keyword(s):  
Air Temperature ◽  
Spring Wheat ◽  
Nitrogen Fertilizer ◽  
Correlation Coefficients ◽  
Growing Season ◽  
Forest Steppe ◽  
Hydrothermal Conditions ◽  
Hydrothermal Coefficient ◽  
June July ◽  
Selyaninov Hydrothermal Coefficient

The purpose of the study is to identify the dependence of spring wheat productivity on agrometeorological indicators of the vegetation period at various levels of nitrogen nutrition in the central forest-steppe of the Ob Region. Wheat of medium early varieties was grown in a wheat-barley crop rotation at doses N0, N30, N60 and N90 against the background of a full range of plant protection products. The correlation between wheat productivity and agrometeorological indicators was evaluated based on the results of 13 years of research. To characterize the hydrothermal conditions, we used the reserve of productive moisture in the soil, the amount of precipitation and air temperature, the Selyaninov hydrothermal coefficient , and the Ponko wetting coefficient. Over the years, grain yield varied from 7.2 to 43.6 kg / ha, Selyaninov coefficient - from 0.18 to 1.67. The highest correlation coefficients (0.7–0.8) were obtained between wheat productivity and indicators of hydrothermal conditions in June - July. Moreover, with the amount of precipitation of this period, the dependence was positive, with air temperature - negative. No reliable relationship was found between grain yield and spring stock of productive moisture in the soil. The tightness of the relationship between wheat productivity and the Selyaninov hydrothermal coefficient and Ponko hydration coefficient was the same, with the highest correlation coefficients also obtained for June – July. The increase in wheat grain from nitrogen fertilizer increased significantly as the hydrothermal conditions of the growing season improved. Based on the obtained values   of the fertilizer nitrogen payback by increasing the crop, it was concluded that the current price ratio - the sale of grain by the farms and their purchase of nitrogen fertilizers (approximately 1:7) is unfavorable for the development of intensive crop cultivation technologies.

scholarly journals The effect of nitrogen fertilization on flag leaf and ear photosynthesis and grain yield of spring wheat

2014 ◽  
Vol 60 (No. 12) ◽  
pp. 531-536 ◽  
Author(s):  
J. Olszewski ◽  
M. Makowska ◽  
A. Pszczółkowska ◽  
A. Okorski ◽  
T. Bieniaszewski
Keyword(s):  
Grain Yield ◽  
Spring Wheat ◽  
Negative Correlation ◽  
Nitrogen Fertilization ◽  
Flag Leaf ◽  
Weather Conditions ◽  
Significant Negative Correlation ◽  
Strong Negative Correlation ◽  
High Positive Correlation ◽  
Flag Leaves

In a three-year field experiment the assessment of leaves and ears photosynthesis rate in spring wheat was made using a LI-COR 6400 portable photosynthesis system. The photosynthetic rate of spring wheat was affected by cultivars, nitrogen fertilization and weather conditions. We generally found a negative correlation between the yield of spring wheat and the rate of photosynthesis in flag leaves in phases 39&ndash;55 BBCH (the strength of this effect depended on the level of nitrogen fertilization). Strong negative correlation occurred for cv. Bryza in phases:&nbsp; 39&ndash;51 BBCH in treatment fertilized with lower dose of nitrogen and in phase 39&ndash;41 BBCH for dose 120 kg/ha. There was a significant negative correlation for cv. Tybald only in phase 39&ndash;41 BBCH for higher dose of nitrogen and 52&ndash;55 BBCH for lower dose. Our studies show that the photosynthetic activity of flag leaves decreased from the booting (39&ndash;41 BBCH) to heading stage (52&ndash;55 BBCH), and their function was taken over by ears. Contrary to flag leaf, in wheat ears the intensity of photosynthesis correlated positively with grain yield for most of the studied period (52&ndash;65 BBCH, with highly significant correlation at 56&ndash;57 BBCH and &ndash; only for high nitrogen treatments &ndash; at 59&ndash;61 BBCH; a negative correlation was generally observed at a later phase, i.e. at 65&ndash;69 BBCH). Contrary to flag leaf photosynthesis, the intensity of this process in wheat ears (at the heading and flowering stages) seems highly relevant for grain yield. High positive correlation was noted in 56&ndash;57 BBCH and 61&ndash;65 BBCH. However, the study was done in field conditions and for definitive conclusions observations over a longer period would be desirable.

Analysis of the moisture content of maize kernels in over-ripe plants

2006 ◽  
Vol 54 (4) ◽  
pp. 425-430
Author(s):  
T. Árendás ◽  
L. C. Marton ◽  
P. Bónis ◽  
Z. Berzsenyi
Keyword(s):  
Linear Regression ◽  
Moisture Content ◽  
Grain Yield ◽  
Equilibrium Moisture Content ◽  
Weather Conditions ◽  
Positive Correlation ◽  
Maize Grain Yield ◽  
Maize Grain ◽  
Maize Kernels

The effect of varying weather conditions on the moisture content of the maize grain yield was investigated in Martonvásár, Hungary from late August to late September, and from the 3rd third of September to the 1st third of Novemberbetween 1999 and 2002. In every year a close positive correlation (P=0.1%) could be observed between the moisture content in late September and the rate of drying down in October. Linear regression was used each year to determine the equilibrium moisture content, to which the moisture content of kernels returned if they contained less than this quantity of water in late September and harvesting was delayed. In the experimental years this value ranged from 15.24-19.01%.

Prospects of spring wheat cultivation in the conditions of arid Volga region

2020 ◽  
pp. 28-33
Author(s):  
Valery Genadievich Popov ◽  
Andrey Vladimirovich Panfilov ◽  
Yuriy Vyacheslavovich Bondarenko ◽  
Konstantin Mikhailovich Doronin ◽  
Evgeny Nikolaevih Martynov ◽  
...  
Keyword(s):  
Spring Wheat ◽  
Soil Layer ◽  
Weather Conditions ◽  
Volga Region ◽  
Mineral Fertilizers ◽  
Climate Conditions ◽  
Wheat Cultivation ◽  
Forest Belts ◽  
Clear Differentiation ◽  
The Impact

The article analyzes the experience of the impact of the system of forest belts and mineral fertilizers on the yield of spring wheat, including on irrigated lands. Vegetation irrigation is designed to maintain the humidity of the active soil layer from germination to maturation at the lower level of the optimum-70-75%, and in the phases of tubulation-earing - flowering - 75-80% NV. However, due to the large differences in zones and microzones of soil and climate conditions and due to the weather conditions of individual years, wheat irrigation regimes require a clear differentiation. In the Volga region in the dry autumn rainfalls give the norm of 800-1000 m3/ha, and in saline soils – 1000-1300 and 3-4 vegetation irrigation at tillering, phases of booting, earing and grain formation the norm 600-650 m3/ha. the impact of the system of forest belts, mineral fertilizers on the yield of spring wheat is closely tied to the formation of microclimate at different distances from forest edges.

scholarly journals Soybean Relative Maturity, Not Row Spacing, Affected Interseeded Cover Crops Biomass

Agriculture ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 441
Author(s):  
Hans J. Kandel ◽  
Dulan P. Samarappuli ◽  
Kory L. Johnson ◽  
Marisol T. Berti
Keyword(s):  
Spring Wheat ◽  
Cover Crops ◽  
Cover Crop ◽  
Soil Cover ◽  
Plant Density ◽  
Row Spacing ◽  
Winter Rye ◽  
Soybean Yield ◽  
Early Maturing ◽  
Crop Biomass

Adoption of cover crop interseeding in the northwestern Corn Belt in the USA is limited due to inadequate fall moisture for establishment, short growing season, additional costs, and need for adapted winter-hardy species. This study evaluated three cover crop treatments—no cover crop, winter rye (Secale cereale L.), and winter camelina (Camelina sativa (L.) Crantz)—which were interseeded at the R6 soybean growth stage, using two different soybean (Glycine max (L.) Merr.) maturity groups (0.5 vs. 0.9) and two row spacings (30.5 vs. 61 cm). The objective was to evaluate these treatments on cover crop biomass, soil cover, plant density, and soybean yield. Spring wheat (Triticum aestivum L.) grain yield was also measured the following year. The early-maturing soybean cultivar (0.5 maturity) resulted in increased cover crop biomass and soil cover, with winter rye outperforming winter camelina. However, the early-maturing soybean yielded 2308 kg·ha−1, significantly less compared with the later maturing cultivar (2445 kg·ha−1). Narrow row spacing had higher soybean yield, but row spacing did not affect cover crop growth. Spring wheat should not follow winter rye if rye is terminated right before seeding the wheat. However, wheat planted after winter camelina was no different than when no cover crop was interseeded in soybean. Interseeding cover crops into established soybean is possible, however, cover crop biomass accumulation and soil cover are limited.

Determination of the flight trajectory in terms of emission and fuel consumption minimization

2021 ◽  
pp. 095441002110122
Author(s):  
Małgorzata Pawlak ◽  
Michał Kuźniar ◽  
Andrzej R. Majka
Keyword(s):  
Fuel Consumption ◽  
Negative Impact ◽  
Weather Conditions ◽  
Air Transport ◽  
Cycle Phase ◽  
Horizontal Flight ◽  
Pollutants Emission ◽  
Aircraft Trajectory ◽  
Air Speed ◽  
Constant Altitude

The present-day world is characterized by the intense development of air transport. However, along with it, significant problems appear. Among these problems, the most important are those relating to safety and negative impact of air transport on the environment. Air transport efficiency and profitability issues, although not critical, must also be taken into account because they decide about the intensity of development of this branch of transport. There are currently two large programs in Europe oriented at improving safety, environmental, and efficiency indicators. These are SESAR 2020 and Clean Sky 2, being a continuation of previous ones. One of the ways to reduce negative impact of air transport on the environment and improve its efficiency is to reduce fuel consumption and pollutants emissions resulting from fuel combustion. To find solutions with the abovementioned features, it is necessary to have sufficiently accurate models to estimate the amount of fuel consumed and the amount of pollutants emitted. Developing a sufficiently accurate model to determine fuel consumption and pollutants emission was performed. Due to the specificity of the missions carried out by passenger aircraft, the focus was on the cruise stage when aircraft flies at a constant altitude with a constant air speed. The result of the analysis was the development of methodology for fuel consumption and emission of main pollutants in cruise conditions. Specific fuel consumption is calculated for the thrust required for horizontal flight at cruising altitude. Emission indexes for CO, NOx, HC, and CO2 for the cruise have been determined based on known indexes for the landing and take-off cycle phase, after applying appropriate corrections. An illustration of the application of the developed methodology was the optimization of a medium-sized transport aircraft trajectory on a selected connection to determine a trajectory characterized by a minimum emission value taking into account weather conditions.

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