EFFECT OF IRRIGATION WATER AND NITROGEN FERTILIZER ON GROWTH AND PRODUCTIVITY OF COWPEA CROP WITH MAGNETIZED WATER

Sustainability of rice production under flooding conditions has been challenged by water shortage and food demand. Applying higher nitrogen fertilization could be a practical solution to alleviate the deleterious effects of water stress on lowland rice (Oryza sativa L.) in semi-arid conditions. For this purpose, field experiments were conducted during the summer of 2017 and 2018 seasons. These trials were conducted as split-split based on randomized complete blocks design with soil moisture regimes at three levels (120, 100 and 80% of crop evapotranspiration (ETc), nitrogen fertilizers at two levels (N1—165 and N2—200 kg N ha−1) and three lowland Egyptian rice varieties [V1 (Giza178), V2 (Giza177) and V3 (Sakha104)] using three replications. For all varieties, growth (plant height, tillers No, effective tillers no), water status ((relative water content RWC, and membrane stability index, MSI), physiological responses (chlorophyll fluorescence, Relative chlorophyll content (SPAD), and yield were significantly increased with higher addition of nitrogen fertilizer under all water regimes. Variety V1 produced the highest grain yield compared to other varieties and the increases were 38% and 15% compared with V2 and V3, respectively. Increasing nitrogen up to 200 kg N ha−1 (N2) resulted in an increase in grain and straw yields by 12.7 and 18.2%, respectively, compared with N1. The highest irrigation water productivity (IWP) was recorded under I2 (0.89 kg m−3) compared to (0.83 kg m−3) and (0.82 kg m−3) for I1 and I3, respectively. Therefore, the new applied agro-management practice (deficit irrigation and higher nitrogen fertilizer) effectively saved irrigation water input by 50–60% when compared with the traditional cultivation method (flooding system). Hence, the new proposed innovative method for rice cultivation could be a promising strategy for enhancing the sustainability of rice production under water shortage conditions.

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Nutrient balance in a paddy field with a recycling irrigation system

Water Science & Technology ◽

10.2166/wst.2005.0586 ◽

2005 ◽

Vol 51 (3-4) ◽

pp. 151-157 ◽

Cited By ~ 9

Author(s):

Y.W. Feng ◽

I. Yoshinaga ◽

E. Shiratani ◽

T. Hitomi ◽

H. Hasebe

Keyword(s):

Nitrogen Fertilizer ◽

Irrigation Water ◽

Paddy Field ◽

Irrigation System ◽

Nutrient Balance ◽

Chemical Fertilizer ◽

Nitrogen Compounds ◽

Runoff Water ◽

Irrigation Period ◽

Main Input

We studied nutrient balance in a paddy field that had a recycling irrigation system and evaluated the effect of the irrigation system on nutrient balance during the irrigation period, from April to August 2002. Chemical fertilizer was the main input of phosphorus; the soil absorbed about 56% of it. The amount of nitrogen supplied by the irrigation system was higher than in a representative paddy field, and the amount of nitrogen fertilizer used was decreased because the irrigation water was partly reused. About 20% of applied nitrogen was lost by denitrification. The net outflows of phosphorus and nitrogen were −0.37 and −3.98 kg ha−1, respectively. These results indicate that our study paddy field performed well in removing phosphorus and nitrogen compounds from runoff water. A recycling irrigation system can be considered an effective way of reducing the amounts of water and fertilizer used and reducing the outflow nutrients.

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Effect of Magnetic Irrigation Water on Apparent and Productive Characteristics of Bean crop (Viciafaba. L)

10.36602/jmuas.2019.v01.01.18 ◽

2019 ◽

pp. 227-243

Author(s):

Ali A. Made ◽

Amal A. Alazarg ◽

Almabrok Z. Alsharef ◽

Karima K. Alturki ◽

Mohamed A. Alafi

Keyword(s):

Statistical Analysis ◽

Irrigation Water ◽

Germination Rate ◽

Block Design ◽

Chemical Properties ◽

Magnetized Water ◽

Third Stage ◽

Untreated Water ◽

Bean Crop ◽

Magnetic Water

To achieve the objectives of the study, a field experiment was conducted in the area of Judaim 5 km east of the city of Zawiya - Libya at the farm of citizen Juma Al-Marhoon 2018. The experiment was designed with the design of randomized complete block design (RCBD Factorial) of three replicates, two varieties of bean crop (Viciafaba.L) (Cyprus and Aquadulcy), and two types of irrigation water (magnetic water Mw and non-magnetic water (N Mw). Soil samples from were collected at different depths over three time periods (after one and a half months and three months after harvesting). Some chemical properties of the samples were analyzed and measured. The results of statistical analysis of experiment data showed that the irrigation of the two varieties of bean crops (Cyprus and Aquadulcy) with magnetized water Mw compared to the non-magnetized water N Mw increased significantly in the number of plant branches and plant height. The increase was high significant in germination rate. The increase in productivity was significant in the weight of dry pods, the weight of dry seeds and the total weight of the plant and very high significant in the weight of 100 seeds (g). The other characteristics of the plant, such as vitality, weight, number of root nodes and harvesting index, were not affected by magnetic water. The results of the statistical analysis of soil collected in the first and third stage showed no significant differences between soil irrigated with magnetic water and irrigated soil with untreated water in most of the chemical properties of the soil, except for the dissolved potassium K and pH, the differences were highly significant in the soils collected in the third stage. The results of the statistical analysis of soil data collected in the second stage showed significant and high significant differences between soil irrigated with magnetic water and soil irrigated with untreated water in most of the chemical properties of the soil.

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Impact of levels of nitrogen fertilizer and types of irrigation water on yield and yield components of barley crop

SVU-International Journal of Agricultural Sciences ◽

10.21608/svuijas.2021.60182.1075 ◽

2021 ◽

Vol 3 (1) ◽

pp. 72-84

Author(s):

M.A. Ali ◽

E.A. Abd El-Lattief ◽

R. Khalaphallah ◽

S.S. Mohamed

Keyword(s):

Nitrogen Fertilizer ◽

Irrigation Water ◽

Yield Components ◽

Yield And Yield Components ◽

Barley Crop

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Effect of magnetized irrigation water with different gausses on the growth and mucilage percentage on two varieties of Calendula officinalis L.

Journal of Biotechnology Research Center ◽

10.24126/jobrc.2012.6.2.211 ◽

2012 ◽

Vol 6 (2) ◽

pp. 5-10

Author(s):

A. Z. Hassan

Keyword(s):

Irrigation Water ◽

Dry Weight ◽

Root Diameter ◽

Leaf Length ◽

Control Treatment ◽

Calendula Officinalis ◽

Magnetized Water ◽

Leaves And Roots ◽

Calendula Officinalis L

he study was conducted in of Appliad art/ Zafarania garden during 2011-2010 season to investigat the effet of magnetized Water of different Gausses (0, 500 , 1000( Gausses on growth, Root charactors and mucilage percentage of calendula offianala L. var lemon queen and orang king. RCBD design with three Replications was used. Results showed that highest average of leaf length, dry percentage of Vegtative growth, Chlorophyll percentage, roots length, root diameter, dry weight of roots for Both cultivars due to the irrigation with the magenetized water with 1000 Gausses reached up to (14.95cm, % 28.90, % 42.98, % 2.98). However there was a signification increase in treatment on mucilage percentage in leaves and roots reached up to (2.85, 1.02)% compare with control treatment. The highest percentage of dry weight leaf and root, Chlorophyll percentage and mucilage percentage of leaf and root at Yellow queen reached up to (28.24%, 42.40%, 2.72%, 5.70mm, 2.91gm 0.94%).

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Effect of permanent magnetic field on the properties of static water and germination of cucumber seeds

International Journal of Multidisciplinary and Current Research ◽

10.14741/ijmcr.v6i01.10916 ◽

2018 ◽

Vol 6 (01) ◽

Cited By ~ 3

Author(s):

Olfa Cheikh ◽

Anis Elaoud ◽

Hamza Ben Amor ◽

Mahmoud Hozayn

Keyword(s):

Magnetic Field ◽

Irrigation Water ◽

Human Life ◽

Germination Rate ◽

Permanent Magnetic Field ◽

Magnetic Devices ◽

Magnetized Water ◽

Static Water ◽

Physical And Chemical ◽

Poor Management

Water scarcity and concentration of salts in soils are currently considered as threats to human life. The degradation of irrigation water quality is mainly due to overexploitation of natural resources, poor management and pollution. However, these factors limit the development of agriculture. Although the method of treating water by a magnetic field is a technique that has recently been introduced into different fields, including agriculture, it can be considered as a solution to reduce the salinity problems of irrigation water. On the other hand, magnetized water is the water exposed to magnetic rays which undergoes physical and chemical variations. The purpose of this study is to evaluate the effect of magnetic treatment the advantages of magnetically treated water on the rate of germination and the germinal faculty of cucumber seeds. In addition, experiments were performed with two magnetic devices: A1 = 0.5 Tesla; A2 = 0.29 Tesla. As a result, the application of a magnetic field influenced the parameters of the water, decreasing its pH. As well as, the increase in germination rate and the seed capacity of cucumber seeds before seedling. Statistical analysis showed that our experimental results are highly significant. Keywords: Static magnetic field, Germination, Cucumber seeds

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