scholarly journals Estimation Of Water Requirement Of Lycopersicon Esculentum Mill

2021 ◽  
Vol 25 (1) ◽  
pp. 251
Author(s):  
Manaturikumwe Emmanuel ◽  
Rukangantambara Hamoud ◽  
Gasana Gasabato Quénan ◽  
Niyonkuru Rose ◽  
Nsengiyumva Jean Nepo
Keyword(s):  
Meteorological Parameters ◽  
Wide Spectrum ◽  
Water Requirement ◽  
Effective Rainfall ◽  
Total Water ◽  
Irrigation Requirement ◽  
Experimental Site ◽  
Irrigation Demand ◽  
Irrigation Interval ◽  
Future Management

Crop water requirements of Roma tomato that planted on different spacing for four treatment and its replications in Nyagatare district Kinihira village have been computed with CROPWAT 8.0 using the meteorological parameters. The water requirement was computed using evapotranspiration (ET0), effective rainfall, Net Irrigation demand, the Gross Irrigation demand and irrigation interval for crops grown in different treatment of different spacing have been computed. Based on the rainfall data, effective rainfall and soil characteristics of the experiment site, it was shown that the total net irrigation requirement of tomato in experiment site as presented in CROPWAT 8.0 is 286.2mm and the total gross irrigation requirement is 408.8mm.The total water loss during irrigation is obtained by taking the total gross irrigation requirement minus the total net irrigation requirement and found to be122.6mm. As per CROPWAT 8.0, Tomato water requirement in whole growing stages is 620.3mm .This total water required by tomato at experimental site was supplied to crop by rainfall as effective rainfall (211.5mm) and the remaining portion (408.8mm) was supplied to crop through irrigation. A wide spectrum of scenarios has been discussed in the paper along with the guidelines for future management of water resources.

scholarly journals ANALISIS KEBUTUHAN AIR IRIGASI MENGGUNAKAN METODE CROPWAT VERSION 8.0

2019 ◽  
Vol 10 (2) ◽  
pp. 61-68
Author(s):  
Hanan Shalsabillah ◽  
Khairul Amri ◽  
Gusta Gunawan
Keyword(s):  
Irrigation Water ◽  
Water Requirement ◽  
Effective Rainfall ◽  
Climate Data ◽  
Irrigation Water Requirement ◽  
Irrigation Requirement ◽  
Water Requirements ◽  
Value Prediction ◽  
Irrigation Area ◽  
Reference Plant

The Irrigation Area of Air Nipis is located in Regency of South Bengkulu at Bengkulu Province with irrigation area 3.116 Ha. Planning and management of irrigation systems is one of the important steps to determine the irrigation water requirement as a whole. The purpose of this research is aim to analyze the water requirement to get value prediction of minimum and maximum irrigation water requirement in irrigation area of Air Nipis using the CROPWAT Version 8.0 method. Irrigation water requirements obtained from CROPWAT Version 8.0 are based on climate data, soil data and plants.The parameters that were reference plant evapotranspiration, effective rainfall, soil treatment, soil data, and plants. The results of the research showed that the maximum irrigation requirement for calculation using CROPWAT 8.0 software occurred in the first 10 days of December (14,49 m3/sec), while the minimum irrigation water requirements for CROPWAT 8.0 occurs in mid to end March (0,04 m3/sec).

Research Dry Crop and Irrigation Water Requirement in Environment Engineering

2013 ◽  
Vol 340 ◽  
pp. 961-965
Author(s):  
Xin Hua Wang ◽  
Mei Hua Guo ◽  
Hui Mei Liu
Keyword(s):  
Irrigation Water ◽  
Growth Period ◽  
Water Requirement ◽  
Weather Data ◽  
Effective Rainfall ◽  
Crop Water ◽  
Irrigation Water Requirement ◽  
Water Requirements ◽  
Crop Water Requirements ◽  
Irrigation Water Use

According to Kunming 1980-2010 monthly weather data and CROPWAT software and the corresponding crop data, crop water requirements and irrigation water use are calculated. By frequency analysis, irrigation water requirement was get for different guaranteed rate. The results show that: corn, potatoes, tobacco, and soybeans average crop water requirements were 390.7mm, 447.9mm, 361.8mm and 328.4mm, crop water dispersion coefficient is small, period effective rainfall during crop growth in most of the year can meet the crop water requirements, so irrigation water demand is small. While the multi-year average crop water requirements were 400.8mm, 353.5mm, 394.3mm for small spring crops of wheat, beans, rape. Because the effective rainfall for these crops during growth period is relative less, crop irrigation water requirements for small spring crop is much. Vegetables and flowers are plant around the year, so the crop water and irrigation water requirements are the largest.

scholarly journals Irrigation Requirements for Grape Crop under Climate Changes Conditions in Egypt

2013 ◽  
Vol 19 (1-2) ◽  
Author(s):  
F. A. Hashem ◽  
M. K. Hassanein ◽  
A. A. Khalil ◽  
É. Domokos-Szabolcsy ◽  
M. Fári
Keyword(s):  
Climate Changes ◽  
Reference Evapotranspiration ◽  
Future Climate ◽  
Climate Data ◽  
Irrigation Requirement ◽  
Negative Effects ◽  
The Sustainable Development ◽  
Irrigation Demand ◽  
Monteith Equation ◽  
Irrigation Requirements

The present work is mainly directed to discuss sensitivity of climate changes upon the irrigation demand for grape crop in Egypt. The Penman Monteith equation was used to calculate reference Evapotranspiration (ETo) under current and future climate for the two locations (El Menya and El Beheira). The historical climate data for ten years from (2000 – 2010) was used as current climate to calculate irrigation requirement for grape crop under Egyptian conditions. Two climate changes scenarios have been applied as changes in temperature. The first scenario supposed that increasing in temperature of 1.5°C would happen, and the second scenario supposed that increasing of 3.5°C would happen to calculate reference Evapotranspiration and irrigation requirement for future climate. The results showed that the evapotranspiration and irrigation requirement for grape crop at El Menya location higher than El Beheira location. Irrigation demand for grape plant under two climate changes scenario will increase in El Menya and El Beheira locations. El Menya location will take the highest irrigation demand under climate changes. Therefore, possible adaptation countermeasures should be developed to mitigate the negative effects of climate changes for the sustainable development of agro-ecosystems in Egypt.

scholarly journals Kajian Kebutuhan Air Irigasi Tanaman Jagung (Zea mays L.) Berdasarkan KP-01 dan Metode Thornthwaite-Mather

2019 ◽  
Vol 3 (2) ◽  
pp. 50
Author(s):  
Sri Wahyuni ◽  
Dwi Rustam Kendarto ◽  
Nurpilihan Bafdal
Keyword(s):  
Soil Conservation ◽  
Zea Mays L ◽  
Soil Conservation Service ◽  
Effective Rainfall ◽  
Crop Evapotranspiration ◽  
Irrigation Water Requirement ◽  
Irrigation Requirement ◽  
Reference Crop Evapotranspiration ◽  
Modification Method ◽  
Reference Crop

<p class="JudulAbstrakInggris">Two different methods for determining irrigation water requirement for corn, is  KP-01 and  Thornthwaite-Mather method. Two Methods have different parameter such as reference crop evapotranspiration (ETo) and effective rainfall. The average ETo value using Penman-Monteith for Thornthwaite-Mather was lower (82,5%) than using Penman Modification method (KP-01) . The ratio of effective rainfall between KP-01 and Thornthwaite-Mather was 33,02%.  Corn water irrigation requirement for a pattern planting based on KP-01 is 806,96 mm, while corn water irrigation requirement based on Thornthwaite-Mather method is 254,4125 mm.  Corn water irrigation requirement using KP-01 is higher than Thornthwaite-Mather because effective rainfall method for KP-01 (using USDA Soil Conservation Service) is lower than rainfall effective for Thornthwaite-Mather.</p>

scholarly journals Impact of Biocontainers With and Without Shuttle Trays on Water Use in the Production of a Containerized Ornamental Greenhouse Crop

2015 ◽  
Vol 25 (1) ◽  
pp. 35-41 ◽  
Author(s):  
Michael R. Evans ◽  
Andrew K. Koeser ◽  
Guihong Bi ◽  
Susmitha Nambuthiri ◽  
Robert Geneve ◽  
...  
Keyword(s):  
Catharanthus Roseus ◽  
Water Loss ◽  
Wood Fiber ◽  
Dairy Manure ◽  
Rice Hull ◽  
Total Water ◽  
Coconut Fiber ◽  
Irrigation Interval ◽  
Plastic Containers ◽  
Reduced Water

Nine commercially available biocontainers and a plastic control were evaluated at Fayetteville, AR, and Crystal Springs, MS, to determine the irrigation interval and total water required to grow a crop of ‘Cooler Grape’ vinca (Catharanthus roseus) with or without the use of plastic shuttle trays. Additionally, the rate at which water passed through the container wall of each container was assessed with or without the use of a shuttle tray. Slotted rice hull, coconut fiber, peat, wood fiber, dairy manure, and straw containers were constructed with water-permeable materials or had openings in the container sidewall. Such properties increased the rate of water loss compared with more impermeable bioplastic, solid rice hull, and plastic containers. This higher rate of water loss resulted in most of the biocontainers having a shorter irrigation interval and a higher water requirement than traditional plastic containers. Placing permeable biocontainers in plastic shuttle trays reduced water loss through the container walls. However, irrigation demand for these containers was still generally higher than that of the plastic control containers.

scholarly journals Simple water balance model and crop water demand at different spatial and temporal scales in Periya Pallam catchment of upper Bhavani basin, Tamilnadu

2021 ◽  
pp. 217-224
Author(s):  
A. Raviraj ◽  
Ramachandran J ◽  
Nitin Kaushal ◽  
Arjit Mishra
Keyword(s):  
Water Balance ◽  
Water Use ◽  
Water Demand ◽  
Water Requirement ◽  
Water Balance Model ◽  
Balance Model ◽  
Effective Rainfall ◽  
Rainfall Runoff ◽  
Crop Water ◽  
Crop Water Demand

Reduction in agricultural water use and increasing the sustainability of water resources can be achieved by studying the water balance of the area and crop water demand. In this paper, by using a simple water balance model, Evapotranspiration, Rainfall, Runoff, Water Demand and Water Requirement different crops are estimated. The crop water requirement and crop water demand for different crops grown in the Periya Pallam Catchment of Upper Bhavani Basin, Tamilnadu, was estimated. Water balance estimation of the area reveals that out of the annual rainfall, runoff is estimated to be 129 mm, effective rainfall is 252 mm, and deep percolation is about 67 mm. The demand for water for agriculture in the study area is about 61 million cubic meters (MCM), but only 19 MCM of water is available through precipitation in the form of effective rainfall. Hence, the remaining 43 MCM of water is supplied through groundwater and other sources. The results will pave the way for sustainable crop water use planning and would achieve water security in the basin.

scholarly journals Water requirement analysis of three strawberry cultivars by using bucket-type lysimeter and its comparative study

2017 ◽  
Vol 2 (4) ◽  
pp. 672-677
Author(s):  
Md Hafizul Islam ◽  
Md Erfanul Haq ◽  
Prajna Paramita Paul ◽  
Amitave Paul ◽  
Ziaul Hoque
Keyword(s):  
Comparative Study ◽  
Potential Evapotranspiration ◽  
Crop Coefficient ◽  
Water Requirement ◽  
Requirement Analysis ◽  
Field Evaporation ◽  
Total Water ◽  
Crop Water ◽  
Strawberry Cultivars ◽  
Evaporation Condition

An experiment was carried out from November, 2014 to February, 2015 at Dinajpur, Bangladesh to quantify the total water requirement of Strawberry for three indigenous cultivars RU-1, RU-2 and RU-3by using 12'' × 11.5'' Bucket-Type Lysimeter. Water requirement in zero evaporation condition for RU-1, RU-2 and RU-3 were 86.25 ± 0.23, 49.22 ± 0.31 and 73.42 ± 0.42mm respectively, which were significantly different (p< 0.01). After adding field evaporation total water requirement RU-1, RU-2 and RU-3 were 351.45 ± 0.23, 324.42 ± 0.31 and 338.61 ± 0.42mm respectively.ET0(Potential evapotranspiration)value ranged between3.21-4.56 (mm/day) while seasonal ET0 was approximately 457 (mm/season).ETc (Evapotranspiration) value measured by using Kc (Crop coefficient) value and equations provided by FAO, (2016a, b) viz. 324.24 (mm/season). As plant only uses less than 1% of its total water uptake for metabolic use, Crop water requirement (CWR) can be easily represented by ETc. However our CWR value is in line with the theoretical ETc which clearly indicates level of accuracy. Therefore, it is highly recommendable for the local Commercial Strawberry growers to get robust yield.Asian J. Med. Biol. Res. December 2016, 2(4): 672-677

Effects of climatic factors, drought risk and irrigation requirement on maize yield in the Northeast Farming Region of China

2016 ◽  
Vol 154 (7) ◽  
pp. 1171-1189 ◽  
Author(s):  
X. G. YIN ◽  
M. JABLOUN ◽  
J. E. OLESEN ◽  
I. ÖZTÜRK ◽  
M. WANG ◽  
...  
Keyword(s):  
Drought Stress ◽  
Water Deficit ◽  
Climatic Factors ◽  
Maize Yield ◽  
Drought Risk ◽  
Effective Rainfall ◽  
Crop Evapotranspiration ◽  
Growth Phases ◽  
Irrigation Requirement ◽  
Mean Temperature

SUMMARYDrought risk is considered to be among the main limiting factors for maize (Zea mays L.) production in the Northeast Farming Region of China (NFR). Maize yield data from 44 stations over the period 1961–2010 were combined with data from weather stations to evaluate the effects of climatic factors, drought risk and irrigation requirement on rain-fed maize yield in specific maize growth phases. The maize growing season was divided into four growth phases comprising seeding, vegetative, flowering and maturity based on observations of phenological data from 1981 to 2010. The dual crop coefficient was used to calculate crop evapotranspiration and soil water balance during the maize growing season. The effects of mean temperature, solar radiation, effective rainfall, water deficit, drought stress days, actual crop evapotranspiration and irrigation requirement in different growth phases were included in the statistical model to predict maize yield. During the period 1961–2010, mean temperature increased significantly in all growth phases in NFR, while solar radiation decreased significantly in southern NFR in the seeding, vegetative and flowering phases. Effective rainfall increased in the seeding and vegetative phases, reducing water deficit over the period, whereas decreasing effective rainfall over time in the flowering and maturity phases enhanced water deficit. An increase in days with drought stress was concentrated in western NFR, with larger volumes of irrigation needed to compensate for increased dryness. The present results indicate that higher mean temperature in the seeding and maturity phases was beneficial for maize yield, whereas excessive rainfall would damage maize yield, in particular in the seeding and flowering phases. Drought stress in any growth stage was found to reduce maize yield and water deficit was slightly better than other indicators of drought stress for explaining yield variability. The effect of drought stress was particularly strong in the seeding and flowering phases, indicating that these periods should be given priority for irrigation. The yield-reducing effects of both drought and intense rainfall illustrate the importance of further development of irrigation and drainage systems for ensuring the stability of maize production in NFR.

Variability assessment of Irrigation Requirement for Winter Wheat Cropping Under Changing Climate.

2020 ◽  
Author(s):  
Kaushika Gujjanadu Suryaprakash ◽  
Hari Prasad Kotnur Suryanarayana Rao
Keyword(s):  
Climate Change ◽  
Water Uptake ◽  
Root Water Uptake ◽  
Water Requirement ◽  
Richards Equation ◽  
Emission Scenarios ◽  
Irrigation Requirement ◽  
Moisture Movement ◽  
The Future ◽  
The Impact

&lt;p&gt;India is primarily an agronomic country and most of the cropping in the Rabi season depends on the rainwater availability. With the ill effects of climate change cropping up, the agriculture sector is expected to take a major hit. This study takes a technical approach on the impact of climate change on the irrigation requirement of wheat cropping by studying the future irrigation requirement based on the temperature and rainfall that can be expected to occur in the future timelines. A root water uptake model involving the solution of the non-linear Richards equation to assess the root-zone moisture movement is formulated and validated. The inputs of the model include the crop data, which, in this case is obtained by field experimentation at the irrigation field laboratory at IIT Roorkee and weather data, which is obtained from the CANESM2 General circulation model for the historical and projected timescales. The historical GCM data for thirty years is bias corrected using the observed data from the India Meteorological department (IMD). The validated root water uptake model is applied to the historical and projected data for a 60 year span for two emission scenarios for RCP 4.5 and 8.5. The output was obtained as soil moisture profiles and frequencies of irrigation required. It was seen that for both the mild and high emission scenarios, the number of irrigation events per cropping period increased. This increase is assessed using variability analysis and for its impacts on the water resources management systems. The variability assessment showed the variation of the irrigation water requirement on annual and decadal scales. This is useful in understanding the historical and expected crop water requirement in view of the climate change effects.&lt;/p&gt;

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