Volume 1, Issue 1, Spring 2003


THE EFFECT OF GYPSUM CONTENT IN UPPER HORIZONS OF SOIL ON WHEAT PRODUCTIVITY UNDER A CENTER PIVOT SPRINKLER IRRIGATION SYSTEM

K. AL. Hadithi; A. A. Abed; H. H. Khaleifa; Sh. M. Hassin; Y. Hamdi; A. Frayh

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2003, Volume 1, Issue 1, Pages 1-5
DOI: 10.32649/ajas.2003.175077

 
A Field experiment was conducted in winter season 2001 – 2002 to study the effect of gypsum content in soil on wheat productivity under center pivot sprinkler irrigation system, and in different sites of the field with gypsum content ranged between 160 to 330 gm. Kg-1. Results indicated that there was a significant reverse relationship between gypsum content in soil and wheat productivity with correlation coefficient 0.889. The content of gypsum 260 gm .Kg-1 was critical value between the high and low values of productivity. Highly, productivity for wheat was achieved in sites where the gypsum content was less than 260gm .Kg –1, and the productivity decreased about 50% when the gypsum content was more than that value. 

RESPONSE OF TOW WHEAT CULTIVARS FOR HIGH RATES OF FERTILIZATION IN GYPSIFEROUS SOILS UNDER CENTER PIVOT SPRINKLER IRRIGATION SYSTEM

K. AL. Hadithi; A. AL-Assaffii; A. F. AL-Hadith

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2003, Volume 1, Issue 1, Pages 6-14
DOI: 10.32649/ajas.2003.175078

Field experiment was conducted in gypsiferous desert soil in western desert of Iraq/ to the west of Baghdad 260km. at the season 2003-2004 to study the response of wheat (Ebba-99 and Rabeha-2) to high rates of fertilization and the method of nutrient application under center pivot sprinkler irrigation system. Treatments were distributed according to the factorial experiments by using completely randomized design with three replicates in experimental units with area 300 m2.  Four treatments of fertilization were used: Control, fertilization according to the recommendation of ministry of agriculture (160 kg./hec.DAP +300Kg./hec.Urea), and 40 kg. /ha. DAP was used with water or brad casting to the soil besides to recommendation fertilization. Measurements were carried out after 50,100 days and at harvesting which consisted of morphological properties like number of branches, plant height, leaf area, dry weight, number of spikes, number of grains in spike, weight of 1000 grain, biological yield, grain yield and harvesting index. Some physiological and qualitative properties were estimated that are chlorophyll a, b and total, carbohydrate, protein, total nitrogen, available phosphorus in soil and plant. Also water use efficiency was calculated. Results showed that class of Ebba-99 cultivar achieved significant increasing in yield as compared with Rabea-2. The yield was 3086 kg. /hec. For the treatment of DAP with water by significant increasing percentage about 9.82% as compared with recommended fertilization treatment ,and increased 12.6%as compared with Rabea-2  cultivar. The followed treatment was DAP added to the soil with significant increasing percentage 6.04%.The highest percentage of protein in grains were corresponded by DAP with water and reached to 17.8%. Treatments of DAP added with water or to the soil conserved good level of Nitrogen whorl cover the requirement of plant to age 100 days. But for phosphorous there was decreasing under minimum limits which cover plant requirement after 50 days. That is mentioned the importance of phosphorous application with water at later stages (after 50 days). It will be concluded the importance of fertilization with rates more than recommended quantities in gypsiferous soils conditions and adding the elements with water after age 50 days.

A QUALITATIVE STUDY OF THE WATER OF SOME KABAISA SPRINGS (IRAQ)

Shehab Ahmed Lafi; Hussein Jassim Al-Hadithi

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2003, Volume 1, Issue 1, Pages 15-21
DOI: 10.32649/ajas.2003.175079

This study was carried out on water samples which were taken from three springs of different locations in Kubaysa (83 km west of Ramadi city ) to qualify it chemically and microbiologically. It was found that water of these springs contain high concentrations of soluble ions specially sulphate and sodium and no significant differences were seen in ion concentrations , temperature , electrical conductivety and PH during study period. While bacteriological study was revealed that these springs water contain high- bacterial count of coliforms and clostridium perfringens and the highest contamination was seen in the water of spring C(south of Kubaysa city) and lowest contamination was in the water of spring B(west of Kubaysa) so water of these springs is not suitable for drinking and constructions before treatment and it was suitable for irrigation of some salinity resistant crops.

THE EFFECT OF CENTER – PIVOT SPRINKLER IRRIGATION FROM UNDERGROUND WATER ON SOME MORPHOLOGICAL , PRODUCTIVE AND PHYSIOLOGICAL FEATURES OF THREE KINDS OF WHEAT IN THE WEST DESERT REGION

H. N. Farhan; A. A. J. Yassen; A. M. A. Aziz

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2003, Volume 1, Issue 1, Pages 22-33
DOI: 10.32649/ajas.2003.175080

A field study has been carried out in the production season of 2003- 2004. The aim is to study the effect of center- pivot sprinkler irrigation from underground water on some morphological, productive and physiological features of three kinds of wheat represented by Abu- Ghraib Ebba 99 and Al- Qaid I in AL-Qaim. 30 Hectares of agriculture Land were exploited 10 Hectare for each type. Nitrogen, phosphate and potassium fertilizers were added using center – pivot sprinkler irrigation from under groundwater with 3.8 ds.m-1 salinity. The results of the study have revealed a significant difference in all morphological, productive and physiological features in wheat in Abu – Ghraib, whereas there has been a significant grading in the two kinds; Ebba 99 and Al-Qaid I. The reasons behind this variation in the results of these kinds might be attributed to the variation among these kinds concerning their adaptability with environmental condition during growing. Besides, they might be attributed to the variation in the genetic factors of each type.   These reasons have made Abu-Ghraib kind of wheat more able to bear desert environmental conditions because if carries a genetic factor able to bear these conditions. Consequently, the productive ability of this kind has been greater than the others two kinds; Ebba 99 and Al- Qaid I.

COMPUTE THEORETICAL DISCHARGE VALUE OF EMITTERS BY USING VISUAL BASIC 6 FOR DRIP IRRIGATION SYSTEMS

G. A. Abed

ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2003, Volume 1, Issue 1, Pages 34-44
DOI: 10.32649/ajas.2003.175081

A Visual Basic 6 program is established to determine the discharge and supplying pressure value after enter basic data related by the distance between emitter and the distance between first emitter and manifold start point additional the pressure at the begging of the manifold pipe. In this theses the hydraulic effects are considered because its effect on the discharge emitter value for example pipe roughness that cause increase friction losses. The program output data shows decrease in the emitter discharge value along the lateral pipe because the decrease on the pressure value.