Thesis Chapters by Abdullah Ulas
IRRIGATION ENGINEERING, WATER MANAGEMENT AND AGROPHYSICS, 2024
The effect of irrigation water quality on the growth of maize plants, electric conductivity and p... more The effect of irrigation water quality on the growth of maize plants, electric conductivity and pH of the soil Abstrac The research aims to determine the response of the Maize crop to irrigation with salt water during the growth stages, and to study the accumulation of salts in the soil, the degree of their interaction, and the efficiency of water use. Three types of irrigation water with salt concentrations (1.5, 4.5, 6.5) dSm −1 with three replicates for every kind water. The Randomized Complete Blocks Design was used in the experiment, and it was statistically analyzed using SPSS. Statistically significant differences were found at the 5% level according to Duncan's method. Statistical analysis showed that there were significant differences attributed to the salinity of irrigation water at the level of 4.5 dsm −1 (T2), which caused about 50% damage in plant height, root growth, leaf area per cob length, weight of 500 seeds, grain yield, and soil. Compared to salinity if irrigated with 1.5 dsm-1 (T1) salinity of river water. Using water with a salinity of 6.5 dsm-1 (T3) as wastewater resulted in a reduction of all apparent plant characteristics by 75%. An increase in soil salinity was also observed at the end of the experiment compared to its salinity at the beginning of the experiment, and this damage increases with an increase in the electrical conductivity of the water used in irrigation operations. It has been observed that soil PH decreases with increasing soil salinity.
AGRICULTURAL AND FOOD ECONOMICS - Manuscript number :JAFE-D-23-00001, 2023
The project aims to know and evaluate the effect of replacing part of the mineral fertilizers wit... more The project aims to know and evaluate the effect of replacing part of the mineral fertilizers with organic fertilizers.
The effect of combination organic manure (sheep) with mineral fertilizer in percentage on the growth of maize and some soil properties .
Method of work :The experiment carried out in In the fields of the Iraqi Agricultural Research Department - Dabouni Station in (2021) with the treatment groups as follows: Group
(Control, no manure, no fertilizer (T1) Sheep fertilizer, 20 tons ha−1 [SF] (T2) Mineral fertilizer
( N.P.K ) 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha (NPK100%) (T3) Mixture of sheep (20 tons/ha + and mineral fertilizer NPK 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha, 5) Sheep manure + 25%, N.P.K [SMF25%] (T4) Sheep manure+ 50%, N.P.K [SMF50%] (T5)6) Sheep manure + 75%, N.P.K [SMF75%] (T6) Sheep manure +100% N.P.K [SMF100%] (T7)
The experiment laid out in Randomized Complete Block Design (RCBD), with three replications.
The results : experiment showed that the combination of organic fertilizer and mineral fertilizer [SMF100%](T7) gave significant differences in average of plant length growth (161) cm compared to mineral fertilizer (109) cm and organic fertilizer (99) cm respectively, also (T7) gives significant differences in root length ,ear length leaf area,500 grain weight ,biological yield, Grain yield) and content of organic matter in the soil, but in the same significant of fertilization treatment [SMF75%](T6)
The treatment [Mineral F](T3) gives significant difference in the value of EC (4.2) Dsm-1 and PH (7.5) of the soil Compared to other treatments in the experiment .
Conclusions & Recommendations : We can be concluded from blending organic fertilizer with mineral fertilizer to obtain good quality, growth and high productivity of maize and soil fertility and to reduce the amount of mineral fertilizer. Then we recommend that it can be applied by farmers by using other varieties of maize and in other locations to confirm the results
Papers by Abdullah Ulas
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Thesis Chapters by Abdullah Ulas
The effect of combination organic manure (sheep) with mineral fertilizer in percentage on the growth of maize and some soil properties .
Method of work :The experiment carried out in In the fields of the Iraqi Agricultural Research Department - Dabouni Station in (2021) with the treatment groups as follows: Group
(Control, no manure, no fertilizer (T1) Sheep fertilizer, 20 tons ha−1 [SF] (T2) Mineral fertilizer
( N.P.K ) 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha (NPK100%) (T3) Mixture of sheep (20 tons/ha + and mineral fertilizer NPK 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha, 5) Sheep manure + 25%, N.P.K [SMF25%] (T4) Sheep manure+ 50%, N.P.K [SMF50%] (T5)6) Sheep manure + 75%, N.P.K [SMF75%] (T6) Sheep manure +100% N.P.K [SMF100%] (T7)
The experiment laid out in Randomized Complete Block Design (RCBD), with three replications.
The results : experiment showed that the combination of organic fertilizer and mineral fertilizer [SMF100%](T7) gave significant differences in average of plant length growth (161) cm compared to mineral fertilizer (109) cm and organic fertilizer (99) cm respectively, also (T7) gives significant differences in root length ,ear length leaf area,500 grain weight ,biological yield, Grain yield) and content of organic matter in the soil, but in the same significant of fertilization treatment [SMF75%](T6)
The treatment [Mineral F](T3) gives significant difference in the value of EC (4.2) Dsm-1 and PH (7.5) of the soil Compared to other treatments in the experiment .
Conclusions & Recommendations : We can be concluded from blending organic fertilizer with mineral fertilizer to obtain good quality, growth and high productivity of maize and soil fertility and to reduce the amount of mineral fertilizer. Then we recommend that it can be applied by farmers by using other varieties of maize and in other locations to confirm the results
Papers by Abdullah Ulas
The effect of combination organic manure (sheep) with mineral fertilizer in percentage on the growth of maize and some soil properties .
Method of work :The experiment carried out in In the fields of the Iraqi Agricultural Research Department - Dabouni Station in (2021) with the treatment groups as follows: Group
(Control, no manure, no fertilizer (T1) Sheep fertilizer, 20 tons ha−1 [SF] (T2) Mineral fertilizer
( N.P.K ) 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha (NPK100%) (T3) Mixture of sheep (20 tons/ha + and mineral fertilizer NPK 320 kgN/ha ,100kg P2O5/ha and 120Kg K2O/ha, 5) Sheep manure + 25%, N.P.K [SMF25%] (T4) Sheep manure+ 50%, N.P.K [SMF50%] (T5)6) Sheep manure + 75%, N.P.K [SMF75%] (T6) Sheep manure +100% N.P.K [SMF100%] (T7)
The experiment laid out in Randomized Complete Block Design (RCBD), with three replications.
The results : experiment showed that the combination of organic fertilizer and mineral fertilizer [SMF100%](T7) gave significant differences in average of plant length growth (161) cm compared to mineral fertilizer (109) cm and organic fertilizer (99) cm respectively, also (T7) gives significant differences in root length ,ear length leaf area,500 grain weight ,biological yield, Grain yield) and content of organic matter in the soil, but in the same significant of fertilization treatment [SMF75%](T6)
The treatment [Mineral F](T3) gives significant difference in the value of EC (4.2) Dsm-1 and PH (7.5) of the soil Compared to other treatments in the experiment .
Conclusions & Recommendations : We can be concluded from blending organic fertilizer with mineral fertilizer to obtain good quality, growth and high productivity of maize and soil fertility and to reduce the amount of mineral fertilizer. Then we recommend that it can be applied by farmers by using other varieties of maize and in other locations to confirm the results