Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : salinity


The Effect of Organic Fertilizer and Nitrogen Fertilizer on the Growth of Wheat Growing in Salt Soil

H. H. Al-Alawy; B. R. Al-Bandawy

Al-Qadisiyah Journal For Agriculture Sciences, 2017, Volume 7, Issue 1, Pages 136-142
DOI: 10.33794/qjas.2017.124324

Field experiment is conducted at the college of Agriculture - University of Diyala to study the effect of two factors : organic fertilizer and nitrogen fertilizer on the grow and productivity of wheat that grow in salt soil (10 dS m-1), two levels of organic fertilizer were used (2 and 4 t h-1 ) and three levels of nitrogen were used (0, 50 and 100 kg h-1). Result show that both of organic fertilizer and nitrogen levels have significantly effect on agronomy and productivity attributes of wheat, interaction between the second level of organic fertilizer and the third level of nitrogen is the best result in plant height 75.9 cm, tillers 7.1, flag leaf area 31.4 cm2, dry weight of shoot 365 g, spike weight 3.36 g, number of spikes/ m2 203, number of seeds in the spike 36.9 and the weight of 100 seeds 11.22 g are significantly differences in other treatments.

Effect of Salinity and Compost on Some Enzymes Activity in Rizhosphere of Bean and Tomato Plants

Luma S.J.Al-Taweel; Radi K.Al-Rashidi

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 1, Pages 37-57
DOI: 10.33794/qjas.2016.110161

The aim of this study is to discover the activity of extracellular enzymes (amidase , alkaline phosphatase and Arylsulphatase) in vertical and horizontal developing directions of rhizosphere (0-5 and 5-10) cm . The plot experiment is performed in college of Agriculture / Al-Qadissiya University for the spring season 2013 ,the loamy sand soil was used to cultivate Tomato (Lycopersicon Esculentum mill) and Bean (Phaseolus Vulgaris L.) plants under salinity levels (without salted the natural salinity) , 6 , 8 and 10 ds.m-1 and compost levels (0,10 ,20)T.h-1 , and their interactions randomized complete design (RCD) is used with three replicates used with L.S.D test 5% level .The laboratory experiment is performed to determine the all enzymes activity above for all treatments .

The results are summarized as :
1- Enzyme activity decreases with increasing the salinity levels for all enzymes used in this study and the salinity level 10 ds.m-1 is the lowest. The arrangement of activity values as
Alkaline Phosphatase  Amidase  Arylsulphatase
2- The enzyme activity increased with increasing the added compost level 20Ton.h-1 and its interactions with salinity levels , and it has positive role to reduce the negative effect of salinity and it increases the activity in all treatments as well as the dead plant treatments .
3- The enzymes activity varied in rhizosphere developing directions and the plants are different in the site of highest activity , the enzyme activity in horizontal rhizosphere developing direction is highest than the vertical direction .
4- The enzyme activity in Tomato rhizosphere is the higher than Bean rhizosphere in all enzymes without the alkaline phosphatase in all rhizosphere vertical and horizontal directions .

The Effect of Salinity and Compost on CO2 Released from Rhizospher of Bean and Tomato Plants

Radi . K.Al-Rashidi; Luma .S.J.Al-Taweel

Al-Qadisiyah Journal For Agriculture Sciences, 2015, Volume 5, Issue 2, Pages 1-14
DOI: 10.33794/qjas.2015.108679

The aim of this research is to study CO2 released in vertical and horizontal developing directions of rhizosphere (0-5 and 5-10) cm . The plots experiment is performed in college of Agriculture / Al-Qadissiya University for the spring season 2013 ,the loamy sand soil has been used and cultivated Tomato (Lycopersicon Esculentum mill) and Bean (Phaseolus Vulgaris L.) plants under salinity levels (without salted (the natural salinity) , 6 , 8 and 10) ds.m-1 and compost levels (0,10 ,20)T.h-1 , and their interactions randomized complete design (RCD) is used with three replicates as compared with L.S.D test 5% level .
The soil has been incubated under the same treatments and the interactions in vertical and horizontal developing directions of rhizosphere for both plants under incubated periods (2 , 4 ,7 and 14) day for calculated the CO2 released .
The results are summarized as follows :
1- The highest quantities of CO2 released are in salinity level 6ds.m-1 and decreases with the increasing of salinity levels and the lowest in the 10ds.m-1 level for both plants .
2- The adding compost levels leads to an increase of CO2 released , the CO2 released quantities are varied in vertical and horizontal rhizosphere developing and the CO2 released quantities in horizontal rhizosphere developing are highest than the vertical direction for both plants .

The Effect of Interaction Among Salinity, Organic Material and Fungi Aspergillus candidus and Fusarium nygamai on the Element Concentration Na, Mg and Ca in Soil and Barley Plant

yahoo.com; phdjamal

Al-Qadisiyah Journal For Agriculture Sciences, 2014, Volume 4, Issue 1, Pages 1-16
DOI: 10.33794/qjas.2014.93688

The results of interaction between the fungi, EC, the proportion of cattail: soil and periods (after mixing directly, 14, and 28 days) show the amount of Sodium (Na) in treatment A. candidus + 5 + 1:1 + after mixing directly, 14 and 28 days are 9.16, 8.92 and 8.68 meq/L respectively which record a significant decrease as compared to all other treatments. The highest value of Calcium (Ca) was 73.27 meq/L in treatment of Fusarium nygamai + 15 + 3:1 + after mixing directly, except the treatment of F. nygamai + 15 + soil only + after mixing directly and control treatment +15 + soil only + after mixing directly which reaches to 72.56 and 70.26 meq/L, respectively.
The effect of soil with different levels of EC, blended cattail and inoculum of A. candidus and F. nygamai are studied to show the content of shoot system of nutritional elements in barley after 28 days from planting , results show highest percentage of Na is 0.1503% in treatment of F. nygamai +15 + 3:1 + after mixing directly. The treatment of A. candidus + 3:1 + after mixing directly show highest percentage (0.265%) of Ca . The highest percentage of magnesium is 0.376% in treatment of A. candidus + 5 + 1:1 + after mixing directly.