scholarly journals Sera İşletmelerinde Yağmur Sularının Hasadı ve Depolama Kapasitesinin Belirlenmesi

Author(s):  
Abdullah Nafi Baytorun ◽  
Zeynep Zaimoğlu ◽  
Mustafa Ünlü

In areas where water resources are not sufficient, rainwater is collected and used in greenhouse irrigation and this opportunity of nature has great importance for sustainability. In order to determine the amount of precipitation to be stored, the amount of precipitation and plant water consumption should be known. In the narrow coastal strip around Mediterranean region, the water resources are insufficient and the greenhouse producers’ carries water with pipes from very long distances. In this study, daily water consumption of tomatoes grown in greenhouses not regularly heated in Mersin climate conditions is calculated according to different methods. Then, the storage capacity of the remaining part of the precipitation used in the greenhouse has been determined. According to FAO-Radiation method in Mersin climatic conditions, the storage capacity is determined as 0.25 m3.m-2 by using water consumption and precipitation amount. With this water, it was determined that the plant water requirement could be supplied for 7 months between November-May. Greenhouse water consumption is calculated according to the FAO-Blaney - Criddle method and the storage capacity determined to be 0.19 m3.m-2 and the plant water consumption will be supplied during the 6 months period between November - April.

ZOOTEC ◽  
2015 ◽  
Vol 35 (2) ◽  
pp. 86
Author(s):  
Alfred Tamawiwy ◽  
M. Najoan ◽  
J S Mandey ◽  
F. N Sompie

ABSTRACT   EFFECT OF UTILIZATION OF VIRGIN COCONUT OIL (VCO) IN THE DIET ON PIG PERFORMANCE. Utilization of fats and oils in pig diets is of great importance due to their high energy value. VCO is obtained by cold press processing of the kernel from the coconut fruit. Utilization of virgin coconut oil (VCO) in the diets on pig performance.  The present study was designed to elaborate the effect of utilization of VCO in the diets on energy and protein digestibility of growing pigs. The experiment was conducted using 20 castrated male pigs aged 1.5 - 2.0 months weighing 12,0±2,0 kg. The data were analyzed according to the linear model procedure for ANOVA appropriate for Randomized Block Design with 5 treatments and 4 replications. Treatments were formulated as follow: R0 = 100% control diet + 0% VCO; R1 = 99.5% control diet + 1.0% VCO; R2 = 98.0% control diet + 2.0% VCO; R3 = 97.0% control diet + 3.0% VCO; and R4 = 96.0% control diet + 4.0% VCO. Parameters measured were: daily feed intake, daily gain, daily water consumption. The results showed that the utilization of VCO up to 4% in the diets had no significant effect (P > 0.05) on daily feed intake, daily gain, daily water consumption of pigs. It can be concluded that the addition of VCO up to 4.0% in the diets has no significant meaning on pig performance.   Key words: Virgin coconut oil (VCO), Performance, Growing pigs  


2019 ◽  
Vol 24 (1) ◽  
pp. 18 ◽  
Author(s):  
Eun-Sun Park ◽  
Yeon-Kyung Lee ◽  
Mi-Hyun Kim ◽  
Mi-Kyeong Choi

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Yuzhe Li ◽  
Jiangwen Fan ◽  
Zhongmin Hu ◽  
Quanqin Shao ◽  
Liangxia Zhang ◽  
...  

To better understand variation in response of components of ecosystem evapotranspiration (ET) to grassland use differences, we selected three typical land use patterns in a temperate steppe area: grazed steppe (G), steppe with grazers excluded (GE), and steppe cultivated to cropland (C). ET was divided into its components evaporation (E) and canopy transpiration (T) using herbicide and a chamber attached to a portable infrared gas analyzer (Li-6400). The results indicated that daily water consumption by ET in G was 3.30 kg m−2d−1; compared with G, ET increased significantly in GE at 13.4% and showed a trend of 6.73% increase in C. Daily water consumption by E increased 24.3% in GE relative to G, and C showed 20.2% more than GE. At 0.46, E/ET in C was significantly higher than G at 0.35. Air temperature and the vapor pressure deficit were closely correlated with variation in diurnal ET, E, and T. The leaf area index (LAI) was also positively correlated with daily ET and E varied among grassland use patterns and explained variation in E/ET (81%). Thus, variation in LAI strongly influences the overall magnitude of ecosystem ET and the composition of its components under different grassland use patterns.


1967 ◽  
Vol 1967 (4) ◽  
pp. 23-25
Author(s):  
Yasushi ASAHIDA ◽  
K^|^ocirc; MIMURA

2004 ◽  
Vol 26 (3) ◽  
pp. 464-467 ◽  
Author(s):  
Luís Henrique Bassoi ◽  
Antonio Heriberto de Castro Teixeira ◽  
José Moacir Pinheiro Lima Filho ◽  
José Antonio Moura e Silva ◽  
Emanuel Elder Gomes da Silva ◽  
...  

The water consumption and the crop coefficient of the banana cv. Pacovan were estimated in Petrolina County, northeastern Brazil, in order to establish guidelines to irrigation water management. Evaluations were carried out since planting in January 1999 to the 3rd harvest in September 2001 on a microsprinkler irrigated orchard, with plants spaced in a 3 x 3 m grid. Average daily water consumption was 3.9, 4.0, and 3.3 mm in the 1st, 2nd and 3rd growing seasons, respectively. Crop coefficient values increased from 0.7 (vegetative growth) to 1.1 (flowering). Even with high soil water availability, transpiration was reduced due to high evaporative demand.


2020 ◽  
Vol 53 (1) ◽  
pp. 117-124
Author(s):  
David E. Freeman ◽  
Alexandra Mooney ◽  
Steeve Giguère ◽  
Jami Claire ◽  
Chloe Evetts ◽  
...  

2015 ◽  
Vol 27 (27) ◽  
pp. 67-79 ◽  
Author(s):  
Marcin Gorączko ◽  
Rafał Pasela

Abstract The article presents, with an example of four cities of various size, a phenomenon of a drop in water consumption by the city population in Poland. The paper draws on 1995-2012 official statistics. A significant decrease in household water consumption was observed, which refers to both the total water volume used by households as well as the average daily water consumption per resident. The article also determines the most essential factors affecting the amount of water consumed, out of which the price of water appears to be of the most significant one.


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