Keywords : Zinc


Response of Three Flax Genotypes (Linum usitatissimum L.) to Foliar Spraying with Different Concentration of Zinc and Boron under the Dryland Conditions of Nineveh Governorate

Saad Ahmed Mohamed Ahmed Al-Doori

College Of Basic Education Research Journal, 2021, Volume 17, Issue 3, Pages 1680-1700
DOI: 10.33899/berj.2021.169692

A field experiment was conducted during the winter season for the years 2018-2019 and 2019-2020 successively to study the effect of foliar application of zinc and boron on growth traits, yield components and quality of three flax genotypes (Lithuania, Ariana and Linot).
The experiment included three concentrations of zinc (0,5 and 10 mg zinc/L) and three concentrations of boron (0, 6 and 12 mg boron/L) implemented according to the factorial experiment in a Completely Random Block Design.
The main findings could be summarized as follows:-
The results indicate that the Lenot genotype gave the highest values ​​for the traits of plant height, stem diameter, number of fruiting branches, number of capsules/plant, number of seeds/capsule, weight of thousand seeds, total seed yield (tons/ha) and oil yield (tons/ha). for seasons 2018-2019 and 2019-2020 respectively.
Foliar application with zinc on plant leaves at a concentration of 5 mg zinc/liter led to a significant increase in plant height, number of fruiting branches, number of capsules/plant, number of seeds/capsule, weight of thousand seeds, total seed yield (tons/ha), oil yield (tons/ha) in both growing seasons.
Adding boron application on plant leaves at a concentration of 6 mg boron/liter led to a significant increase in plant height, stem diameter, number of fruiting branches, number of capsules/plant, number of seeds/capsule, weight of thousand seeds, total seed yield (tons/ha) and oil yield (tons/ha) for seasons 2018-2019 and 2019-2020, respectively.
In general, it can be concluded that the highest total yield of seeds per unit area can be achieved by planting Lenot genotype and adding zinc on plant leaves at a concentration of 5 mg/L and boron at a concentration of 6 mg/L with in Dryland Conditions of this study.

Effect of Foliar and ground additions of chelated micronutrient in In the concentration of iron and zinc in leaves and tubers Potatoes Solaum tuberosum L. in gypsiferous Soil

ahmed Jamal Hindi Al-Falahi

College Of Basic Education Research Journal, 2021, Volume 17, Issue 2, Pages 1419-1446
DOI: 10.33899/berj.2021.168550

A field experiment was conducted in the fields of the College of Agriculture, Tikrit University for the 2019-2020 agricultural season to study the comparison of ground and leaf additives to iron and zinc chelated fertilizers in the growth and yield of potatoes in gypsum soil. The experiment was carried out using RCBD with three replications. The study included two types of chelated fertilizers (chelated iron and chelated zinc) and two methods of adding fertilizers (adding ground and adding paper) (T1 and T2) respectively. And three levels of zinc (0, 0.5, and 1 kg Zn h-1) (Z0, Z1, and Z2) respectively of Zn-DTPA and three levels of iron (0, 5 and 01 kg Fe h-1) (F0, F1, and F2) respectively. Arrangement of Fertilizer (Fe-DTPA). The addition of iron led to a significant increase in the concentration of two elements (Fe, Zn) in potato leaves. The percentage increase of iron was 23.55 and 39.28%, for zinc, and 3.122 and 8.034% for F1 and F2 levels, respectively, compared to the F0 comparison treatment. The foliar addition of iron and zinc increased the concentration of the above elements in the tubers with rates of 19.91% and 40.45, respectively, compared to the addition of the ground. The addition of zinc at a rate of (0.5 and 1 kg Zn. h-1) significantly increased the concentration of the above elements, as the percentage of zinc increased by 36.94 and 57.53%, respectively, compared to treatment Z0, while the addition of zinc did not give a significant increase in iron concentration. The highest concentration of potato plants of the elements of iron and zinc reached 274.45 and 34.72 mg. Kg-1 when treatment T2F2Z2. The addition of iron gave a significant increase in the concentration of two elements (Fe, Zn) in potato tubers, and the percentage increase of iron was 37.65. And 70.60% for zinc, 3.114 and 4.561% for F1 and F2 levels, respectively, compared to the F0 comparison treatment. The foliar addition of iron and zinc increased the iron and zinc concentration in the tubers with rates of 15.76% and 8.240%, respectively, compared to the addition of the ground. Addition of zinc at a rate of (0.5 and 1 kg Zn.h-1) resulted in a significant increase in zinc concentration of 18.06 and 23.22%, respectively, compared to treatment Z0, while it did not give a significant increase in iron concentration.

The Effect K Fertilization, Zn Foliar application and gypsum Soil Content on nutrients by corn (Zea mays L.)

Khalaf ahmood KhalefahM; Ahmed Mujil Awad Al-Namrawi

College Of Basic Education Research Journal, 2020, Volume 16, Issue 4, Pages 1019-1040
DOI: 10.33899/berj.2020.167259

Field experiment was Conducted in season of 2019 year at the University of Tikrit/  college of Agriculture. In two location differ in their gypsum content (4.78% and 17.69%). RCBD design with three Factors (Four K rates 0.0 , 80 , 120 , 200 kg K.h-1). Two gypsum soil contents 4.78% and 14.61% , and three Zinc rates (0.0 , 1 , 2 kg Zn.h-1) were used. The following results were Found.
Application of K fertilization increased the dry weight of corn where the percentage increase were 17.45% , 21.26% and 38.68% respectively as compared to control treatment.
Soil with high gypsum decreased significantly the corn dry weight by 20.66%> The results al so showed that the foliar of Zn significantly increase the Dry weight of corn. The percentage increase were 6.73% and 13.67% for both Zn1 and Zn2 as compared to Zn0.
Location I gave higher yield at the treatment K3Zn2 where its percentage increase was 89.40 as compared to the treatment  K3Zn2  at location 2 which gave the lowest yield.
K application showed significant increase in nutrients uptake in the green shoot of corn, where the % increase of N were  (43.11% , 56.73% and 91.90%) while with P (48.49 , 125.81% and 189.0%)  and for K (100.25% ,  182% and 294%). For Zn the % increase in shoot dry weight were (38.81% , 52.51% and 93.09%) treatment. The higher gypsum content  decreased the uptake of the N,P,K,Zn and % decreased were 30.01% , 69.35% , 47.53, and 29.92 % for N,P,K and Zn respectively.
Zinc application showed Significant increased in nutrients uptake , where the % increase for N were (14.42% and 34.38%) for p (17.09% and 37.34%) for K (25.13% and 51.54%) and for Zn (26.85% and 49.75%) for Zn1 and Zn2 as compared to Zn0 treatment.