The research included the implementation of a laboratory experiment and a field experiment in two successive seasons, where the laboratory experiment was carried out by using columns of PVC columns, where the effect of magnetized water was tested on
several types of soils varying in salinity and spread in the study area east of Aleppo (Kaskis – musharifa Al – Zakia-Rasm al-Hamis). The technology of water magnetization was applied by using a special device manufactured at the Department of Soil Science and land reclamation at the Faculty of agricultural engineering of the University of Aleppo. The device was manufactured for laboratory and field work within a magnetic field whose intensity reached (2000) Gauss. The first type of water was also brought from a well in the village of Rasm al-Hamis (2.1) dS.m-1.the second sample was also brought from a well in the village of musharifa Al-Zakiya (3.4) dS.m-1.the third sample of water used in this study was representative of the water of the Euphrates river canal (0.70) dS.m-1.
The technology of using magnetized water deliberately caused a decrease in the PH values of the three types of water, a slight decrease in the values of the electrical conductivity of irrigation water using magnetized water was also observed, and a decrease in the values of the specific weight of irrigation water after its magnetization was observed in the three types of water used.
Magnetization with the wash coefficient applied by the experiment (15%) contributed to reducing the electrical conductivity values of the three soils, as it was noted that the effect of the magnetization technique was of a significant nature on the soils of the Hamis sketch, where before the experiment they were classified as high-salinity soils and by the effect of the magnetization technique, at the end of the experiment they turned into low-salinity soils. The results obtained from the Rasm al-Hamis soil confirmed that irrigation water with a washing coefficient, whether magnetized or non-magnetized, effectively contributed to the washing of salts from the surface layer of the soil compared to the soil salinity value before the experiment, which amounted about (4.1) dS.m-1, as the magnetized Euphrates water contributed to the washing of salts from the surface layer of the soil by 10% increase compared to the same treatment irrigated with non-magnetized water, as well as when using the magnetic wells of Rasm al-Hamis and Musharafat Al-Zakiya, where the magnetized water contributed to the washing of salts by 19% and 9.8% more than the same transactions irrigated with ordinary water for the surface layer of the soil, and the decrease was of a significant nature. The results in the soil columns also indicated that a significant decrease in the SAR and ESP values of the three soils was achieved, and therefore magnetization had an important role in washing the sodium cation from the soil. With regard to the future leachate from the soil columns, higher values of electrical conductivity and the rate of absorbed sodium were observed in the leachate of transactions irrigated with magnetized water compared to the leachate of transactions irrigated with ordinary water without magnetization for the three soils. this confirmed the role of magnetization technology in washing salts from the soil solution, especially sodium cation. this has been positively reflected on the physical properties of the soil, where the magnetization technology contributed to improving soil porosity values. the improvement was significant in the soils of Rasm al-Hamis and as a poke and not significant in the soil of Musharafat Al-Zakiya.
Moving on to the field experiment, the field experiment was designed using a completely randomized block design with (3) replications, so that the first factor includes irrigation techniques: magnetized water (M) and non-magnetized water (NM), and the second factor is the addition of organic fertilizers to the soil, which included three coefficients: municipal fertilizer (O), humic acid (H) In addition to the control treatment (C). The area of the experimental piece was 16 m2, The number of plants within the experimental plot reached 120 plants. The Maize crop was planted on 29/6/2021 for the first season and on 9/7/2022 for the second.
The results indicated the role of magnetization technology in reducing the electrical conductivity values of the studied coefficients compared to the control treatment coefficients in the surface and subsurface layers with an average value of 10.28%. The results also confirmed that magnetization plays an important role in washing the Na+ ion, and this was clearly reflected in the SAR value of the soil, where the SAR value when irrigated with ordinary water was about 3.16, while it decreased to 2.79 when irrigated with magnetized water, and this decrease was of a significant nature, which in turn affected the reduction of ESP values of the soil.
The results indicated that magnetization clearly affected soil cations, especially Na+, and also directly affected the SO4-2 ion, where the concentration of SO4-2 decreased by 14.4% when irrigating with magnetized water compared to the control treatment. The results confirmed the role of the magnetization technique in improving porosity values.
The data pointed to the important role of municipal fertilizer, potassium Humate in reducing the electrical conductivity values, and the treatment of municipal fertilizer was statistically superior to potassium Humate, whether irrigation with magnetized water or ordinary water. Organic compound with magnetized water also contributed to improving the physical qualities of the soil, which was positively reflected on the values of the index of deterioration of soil properties compared to the control treatment coefficients. This improvement in the physical and chemical properties of the soil positively affected the availability of nutrients in the soil in general, and microelements in particular, which contributed to an improvement in the productivity values of the Maize crop, which reached its highest value when irrigated with magnetic water about 7.43 tons/h, and potassium Humate with irrigation with magnetic water raised the productivity value to 8.49 tons/h, while the treatment of municipal fertilizer with irrigation with magnetic water surpassed the rest of the transactions, where productivity reached about 9.1 tons/h in the first season of the experiment, and the productivity values also improved slightly in the second season compared to the first.
A pot experiment was conducted in a green house at Tishreen University in which bread
wheat (cv. Sham 6) was grown at different levels of potassium nutrition (K0=0, K1=25,
K2=50, K3=75, K4=100, K5=150) mg k/kg soil. The increase in potassium fertil
ization
rates led to a significant increase in the number of total tillers and fertile tillers on the
expense of non-fertile tillers. This was accompanied with no significant increase in
number of main stems spikes grains, while the tillers spikes of the first level of potassium
application (K1) was higher significantly compared to control treatment (K0). The same
treatment (K1) gave the best weight of grain on the main stems spikes and tillers. The
productivity of grain yield increased (but non-significantly) with increasing the level of
potassium fertilization. The highest yield value was obtained in K5 treatment which was
13933 kg /ha. This productivity constitutes a rate of increase 18% compared to the control
treatment (K0). The calculation of Agronomic Efficiency (AE) showed a high value of
(about 13 kg seeds/kg of K fertilizer added) in the K1 treatment, and thereafter, AE
gradually decreased with potassium fertilization to reach about 6 kg grain/kg K fertilizer
for K4 and K5 treatments (100 and 150 mg K/kg).
A population of soft wheat which lives naturally on the edges of saline Ain
Malilah’s Sebkha, located to the southeast of Qasantina from the east of Algeria,
and four varieties i.e. HD1220, ARZ, AS and ANF, to evaluate their performance
under seve
ral abiotic stresses conditions, and to study their response to fertilization,
based on some phenological, morphological, chemical characteristics such as: Life
cycle (from cultivation until the appearance of 1/4 spikes), germination potentiality,
tellering, leaf area, total chlorophyll content, relative water content, carbohydrates
content.
Field experiment was carried out at Research Station of the Faculty of Agriculture,
Muthanna University, Iraq, during 2014/2015 season, to study the effect of adding
NPK, biofertilizers Bacillus Subtilis and Glomus Mosseae on the growth and
yield
of maize (Zea may L.). The treatments were i.e control (zero: no vaccine),
biofertilizers Bacillus subtilis treatments, Glomus mosseae, both biofertilizers (F0,
F1, F2 and F3), respectively, Three levels of NPK liquid fertilizer i.e. 0, 5000, 7500
mg )C0, C1, and C2 respectively). The experiment design was RCBD with three
replications arranged according to split plot.
This study was carried out during the growing season of 2015
to study effect od three planting date (1 Feb., 15 Feb. and 1
March) and four levels of nitrogen fertilization (0, 40, 60 and 80
kg/Ha) with interactive effect between them on some yield
components of cumin.
This search was carried out in the farm of faculty of Agriculture-
Damascus during 2012-2013 to determine the adaption of five
Safflower genotypes) Farming conditions in the lug
intensive in the province of Damascus under the effect of different
nitrogen fertilizers and witness without fertilization N3 . And how they affected safflower
accessions morphological traits and productivity.
The experimental was carried out to estimation the
influence of competitive irrigation, organic, and chemical
fertilization treatments as well as the interaction of them on
coriander plant (Coriandrum sativum L.) by FRCBD in three
replications.
Experiments were conducted on field (2014) for knowing the effect
of nitrogenous fertilizers (Ammonium Nitrate, Urea, Ammonium
Sulfate) in increased concentrations with
two ways of fertilization (Scattered, local) in growth of the young
Beet plan
ts class Dita (dry weight, density rooty, content of soil and
plant from nitrogen) under condition of soil and climate in Deir
Ezoor.
أجريت التجارب الخاصة بهذه الدراسة في منطقتين من غوطة دمشق الأولى في منطقة أبي جرش - مزرعة كلية الزراعة والثاني في منطقة خرابو - مزرعة كلية الزراعة
Two separate pot experiments were conducted during the agricultural season (2012-2013) and a complete randomization system was used, studying the response of four certified Syrian soft wheat cultivars (Triticum aestivum L), namely (Sham 4, Sham 6, Bo
houth 4, Bohuth 6) towards nitrogenous additives and the dates of addition different types and evaluate the efficiency of these varieties in benefiting from the added nitrogen fertilizer.
