scholarly journals ADAPTATION OF THE “PENMAN - MONTEITH” METHOD WHEN USING DRIP IRRIGATION FOR APPLE TREES ON THE ROOTSTOCK M-9 IN THE CONDITIONS OF THE STEPPE ZONE

2019 ◽  
pp. 121-129
Author(s):  
F. A. Minza ◽  
A. P. Shatkovskyi ◽  
O. V. Zhuravlov
Keyword(s):  
Computer Program ◽  
Water Consumption ◽  
Drip Irrigation ◽  
Steppe Zone ◽  
Soil Conditions ◽  
Weather Station ◽  
Total Water ◽  
Apple Trees ◽  
Total Water Consumption ◽  
Irrigation Regimes

Optimization of drip irrigation regimes for intensive apple orchards is the basis of agrotechnology for their cultivation with fruit yields exceeding 50 t/ha. There are many different ways of controlling irrigation regimes that enable to use individually or comprehensively relevant instruments, tools, computer programs, mathematical models etc. Using any approach is based on data on weather and soil conditions, biological and varietal characteristics of crop water consumption. The purpose of the research was to adapt the calculated method of determining the total water consumption (ETs) "Penman-Monteith" when using drip irrigation for apple trees on the rootstock M-9 in the conditions of the Steppe of Ukraine. The scientific-methodological approaches set out in the FAO 56 guidance were used when conducting the experiment. In the experiments, CropWat 8.0 computer program and iMetos digital weather station were used as tools to obtain data and calculate water consumption. When using the Penman – Monteith method, 6–10 vegetation irrigations with the rates of 620–700 m3/ha were conducted during the study period. With that the average yield of marketable fruits was 32.9 t/ha, and the average coefficient of irrigation efficiency was 31.5 m3/t. In production conditions, the actual total water consumption of apple trees when using the Penman-Monteith method was established as 3269.7 m3/ha, the reference water consumption (ETo) for this soil and climate zone during the growing season. In all phases of tree development, the ratio of apple coefficients (Kc) - typical one based on the recommendations of FAO 56 and calculated one, obtained based on the experimental data was established. A comparison of the actual value of the ETc and the calculated one using apple Kc according to the FAO 56 guidance was done. It is recommended that when determining the parameters of the drip irrigation regimes for apple trees on the rootstock M-9 in the Steppe of Ukraine when using CropWat 8.0 computer program and iMetos digital weather station to use the adjusted values ​​of Kc.

scholarly journals Moisture consumption by plum seedlings under drip irrigation in the Central Nonchernozem zone of Russia

2020 ◽  
Vol 15 (2) ◽  
pp. 191-199
Author(s):  
Nikolay N. Dubenok ◽  
Aleksandr V. Gemonov ◽  
Aleksandr V. Lebedev
Keyword(s):  
Moisture Content ◽  
Water Consumption ◽  
Drip Irrigation ◽  
Soil Moisture Content ◽  
Root Zone ◽  
Meteorological Factors ◽  
Climatic Factors ◽  
Total Water ◽  
Moisture Capacity ◽  
Total Water Consumption

The aim of the study was to establish influence of different soil moisture content and climatic factors on water consumption of plum seedlings grown in a fruit nursery in the Nonchernozem zone. According to the results of studies conducted on plum seedlings under drip irrigation in the Moscow region for two years, evapotranspiration with different precipitation availability and temperature was determined. Variability of total water consumption depending on meteorological factors and irrigation regime was considered. Studies have confirmed the increase in the value of evapotranspiration with increasing pre-irrigation threshold of humidity with low-volume drip irrigation. The maximum values of water consumption by year of research, as expected, were recorded in the most wetted variant of the experiment, where moisture content of soil root zone did not fall below 80 % of the field moisture capacity. The statistical analysis carried out did not confirm the effect of varietal characteristics on evapotranspiration, which may be associated with the use of related rootstocks and the use of seedlings with the comparable force of growth in laying the experience. Structure of evapotranspiration of plum seedlings was determined according to experimental data of two research years. Precipitation and irrigation were the most part of total water consumption.

scholarly journals Estimation of the crop coefficient (kc) for bell pepper under greenhouse conditions

2019 ◽  
Vol 23 (10) ◽  
pp. 741-746
Author(s):  
Marcelo Z. Lorenzoni ◽  
Roberto Rezende ◽  
Fernando A. S. Santos ◽  
Álvaro H. C. de Souza ◽  
Cássio de C. Seron ◽  
...  
Keyword(s):  
Water Consumption ◽  
Reference Evapotranspiration ◽  
Crop Coefficient ◽  
Bell Pepper ◽  
Weather Station ◽  
Total Water ◽  
Food And Agriculture ◽  
Total Water Consumption ◽  
Food And Agriculture Organization ◽  
Average Consumption

ABSTRACT This study aimed to determine the crop coefficient (kc) and respective water consumption of the Magali R. bell pepper hybrid cultivated in a protected environment from May to September 2015. Reference evapotranspiration was estimated using the Modified Penman-Monteith method and data were collected from an automatic weather station installed inside the greenhouse at the Universidade Estadual de Maringá, in the municipality of Maringá, PR, Brazil (23° 25’ 57’’ S, 51° 57’ 8’’ W, and altitude of 542 m). Evapotranspiration was measured using constant water table lysimeters. The total water consumption of the bell pepper crop was 282 mm and the average consumption was 2.35 mm d-1. The maximum evapotranspiration was 5.37 mm d-1. Crop coefficient values for the bell pepper were 0.86, 1.55, and 1.4 for the initial, intermediate, and final stages, respectively, which were higher than those recommended by the Food and Agriculture Organization.

scholarly journals INFLUENCE OF BIOLOGICS ON WATER CONSUMPTION OF WINTER BARLEY AND SUNFLOWER IN CONDITIONS OF UKRAINIAN SOUTHERN STEPPE

2020 ◽  
Vol 6 (42) ◽  
pp. 149
Author(s):  
V. Gamajunova ◽  
A. Kuvshinova ◽  
V. Kudrina ◽  
O. Sydiakina
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Steppe Zone ◽  
Climatic Conditions ◽  
Winter Barley ◽  
Total Water ◽  
Main Attention ◽  
Resource Saving ◽  
Total Water Consumption ◽  
Consumption Coefficient

The article analyzes the value of the studied crops for the Steppe zone of Ukraine, their total water consumption during the growing years under the influence of nutritional optimization by using biologics. The main attention is paid to the peculiarities of moisture consumption of winter and sunflower barley plants for the formation of the crop unit and changes in this indicator under the influence of resource-saving nutrition.It has been established that regardless of the weather conditions of the growing years, the use of modern biologics for extracurricular feeding during the main periods of vegetation of both crops, contributes to a more economical use by plants of soil moisture and precipitation that fell during vegetation. Thus, the coefficient of water consumption of winter barley, depending on varietal features, the year of cultivation and the food option, decreases from 10,8 to 30,1%, and sunflower from 39,4 to 44,2% compared to inconvenient control.Key words: winter barley, sunflower, total water consumption, weather and climatic conditions, water consumption coefficient, biologics, nutritional optimization.

Irrigation regime and water consumption of potatoes in the Republic of Bashkortostan, depending on the reclamation condition of lands

2020 ◽  
Vol 0 (6) ◽  
pp. 13-19
Author(s):  
Guzel Gumerova ◽  
Georgiy Gulyuk ◽  
Dmitry Kucher ◽  
Anatoly Shuravilin ◽  
Elena Piven
Keyword(s):  
Water Consumption ◽  
Weather Conditions ◽  
Growing Season ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Total Water ◽  
Total Water Consumption ◽  
Republic Of Bashkortostan ◽  
Irrigated Lands ◽  
The Republic

Data of long-term researches (2015–2018) in southern forest-steppe zone of the Republic of Bashkortostan, is justified theoretically and experimentally the mode of irrigation of potatoes on leached chernozems of unsatisfactory, satisfactory and good ameliorative condition of irrigated lands. For the growing periods of potatoes with different heat and moisture supply, the number of watering, the timing of their implementation, irrigation and irrigation norms are established. On lands with unsatisfactory meliorative state the number of irrigation depending on weather conditions of potato vegetation period varied from 0 to 3 (1.5 on average) with average irrigation norm – 990 m3/ha. With satisfactory meliorative state of lands the number of irrigation on average increased from 0 to 4 (2.3 on average) with irrigation norm – 1305 m3/ha. On lands with good meliorative state the number of irrigation was the highest – from 1 to 5 (3 on average) with average irrigation irrigation norm is 1653 m3/ha. It was noted that in the dry periods of potato vegetation the greatest number of watering was carried out (3–5 watering), and in the wet periods (2017) watering was not carried out except for the area with a good reclamation state, where only one irrigation was carried out by the norm of 550 m3/ha. Water consumption of potato was studied in dynamics as a whole during the growing season and the months of the growing season depending on weather conditions of vegetation period and land reclamation condition of irrigated lands, as well as in the control (without irrigation). The lowest total water consumption was in the area without irrigation and averaged 226.8 mm. In irrigated areas, its values increased to 319-353.4 mm. The average daily water consumption varied from 2.12 to 3.3 mm. The highest rates of potato water consumption were observed in June and July, and the lowest – in May and August. In the total water consumption of potatoes on the site without irrigation, the largest share was occupied by atmospheric precipitation and in addition to them the arrival of moisture from the soil. Irrigation water was used in irrigated areas along with precipitation, the share of which was 30.2–46.1 %.

Analyzing the Effect of Mandatory Water Restrictions on Water Usage

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Trey Dronyk-Trosper ◽  
Brandli Stitzel
Keyword(s):  
Water Use ◽  
Water Consumption ◽  
Water Rights ◽  
Water Usage ◽  
Total Water ◽  
Water Restriction ◽  
Way Of Life ◽  
Total Water Consumption ◽  
Water Restrictions

AbstractAs water rights and water usage become an ever more important part of municipalities’ and states’ way of life, it becomes important to understand what policies can be effective for encouraging conservation of water. One method that has been employed at various times and throughout numerous communities is to limit outdoor watering days. We use a dataset with over 3 million property-month observations during the 2007–2015 period in Norman, Oklahoma, to identify whether the periodic implementation of mandatory water restrictions reduces water usage. Our data allow us to exploit variance in the timing of these water restriction programs. Our findings indicate that this policy reduces water consumption by 0.7 % of total water consumption. Additionally, we use home assessment prices to identify heterogeneity in this response, finding that high priced homes are more responsive to water use restrictions.

Canopy-air temperature difference of winter wheat near-isogenic lines and its relationship with total water consumption by winter wheat grown under water deficit conditions

2019 ◽  
Vol 39 (1) ◽  
Author(s):  
梅旭荣 MEI Xurong ◽  
黄桂荣 HUANG Guirong ◽  
严昌荣 YAN Changrong ◽  
刘晓英 LIU Xiaoying ◽  
张欣莹 ZHANG Xinying ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Water Deficit ◽  
Air Temperature ◽  
Temperature Difference ◽  
Water Consumption ◽  
Near Isogenic Lines ◽  
Total Water ◽  
Isogenic Lines ◽  
Total Water Consumption

scholarly journals Total water consumption of cereals on the slopes of the Central District of Russia and zoned bioclimatic ratios

2020 ◽  
pp. 120-125
Author(s):  
N. N. Dubenok ◽  
R. V. Kalinichenko ◽  
M. V. Klimakhina ◽  
E. V. Matsyganova ◽  
K. B. Shumakova
Keyword(s):  
Soil Moisture ◽  
Water Balance ◽  
Water Consumption ◽  
Agricultural Land ◽  
Elevated Temperatures ◽  
Growing Season ◽  
Total Water ◽  
Total Water Consumption ◽  
Daily Water ◽  
Perennial Herbs

Relevance. In Russia the issue of resource-saving irrigation of agricultural land is one of the most urgent, and total water consumption is one of the most important elements of the water balance of irrigated territory. Analyze the basic methods of determining the total water consumption, determine the average daily water consumption, total water consumption and zonal bioclimatic ratios for oats, barley with planting perennial herbs and perennial herbs in the conditions of the Central Region of the Russian Federation. Materials and methods. The research was carried out on a stationary field experience in the Podolsk district of the Moscow District. To improve the individual elements of the water balance in these conditions were laid stationary water balancing sites (S=200 m2). The pre-21 thresholds for soil moisture was not less than 75%. The research was carried out in accordance with generally accepted methods and recommendations. Total water consumption during the growing season and in the phases of plant development was determined by the method of water balance. Results. The total water consumption of crops by elements of the slope varies significantly between the upper and lower elements of the slope difference is 12-15 mm, which should be taken into account when calculating irrigation regimes on sloped lands. At the top of the slope it is necessary to carry out 1-2 watering more than at the base of the slope. Differentiated watering along the length of the slope allows to save irrigation water by 10-15%. The water consumption of crops in the context of the experience was greater in April and September than in the other months of growing. This is due to climate indicators. Total evaporation from the soil and plant surfaces depends on soil moisture, crop condition, wind speed, temperature and humidity. In April and September, the study years showed elevated temperatures and low relative humidity. When comparing the average daily water consumption at irrigated areas at the top and at the base of the slope, it is seen that in all the months of vegetation it is more on the upper section by an average of 12%. Bioclimatic coefficients depend on humidity and air temperature. The zonal coefficients we have obtained allow us to determine the water consumption of crops, both in each growing season and in general for vegetation.

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