Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : Zea mays L

Zea mays L. Response to Humic Acid and Vaccination with Bacteria Azotobacter and Azospirillum

Jawad Abdul Kadhim Kamal

Al-Qadisiyah Journal For Agriculture Sciences, 2019, Volume 9, Issue 1, Pages 55-59
DOI: 10.33794/qjas.2019.162666

. A field experiment was conducted in the agricultural season (2016 - 2017) in one of the fields of college of Agriculture - University of AL- Qadisiyah on mays L. Zea to study the interrelated effect of both the acid and Azotobacter and Azospirillum. The experiment was applied according to RCBD design and three replicates. The treatment included 12 treatments resulting from the treatment of Control and Azotobacter , Azospirillum , organic fertilizer, The most important results reached:
1. Azotobacter + Azospirillum + organic fertilizer has the superior to the vegetative growth characteristics of mays by giving the highest average (number of leaves, dry weight of leaves, dry weight of root total) (24.67, 17.5 g, 8.17) g respectively, except for treatment (Azospirillum + organic fertilizer) was superior in plant height 92.0 cm.
2-Azotobacter + Azospirillum + organic fertilizer has the highest values for the chemical grade of mays in (potassium, calcium, sodium , respectively (0.243, 2.60 and 0.077) % .

The Effect of Inoculation by Thiobacillus Thiooxidans on Phosphorus Availablity in Soil

Huda khrabit Hende; Abd. AL-Zahra Taha Thaher

Al-Qadisiyah Journal For Agriculture Sciences, 2017, Volume 7, Issue 2, Pages 14-22
DOI: 10.33794/qjas.2017.162613

The aim of this laboratory experiment which includes isolating of sulfur oxidizing bacteria (genus Thiobacillus) from Rhizosphere of some plants and soil treated with sulfur and contaminated with oil and choose the best isolates in reducing the degree of pH and production of sulfate .The isolate T2 is excellent on the rest of the isolates in reducing the degree of pH (8) to (5.51 , 6.07) and produced sulfate 29.1and 114.90 mg.L -1in sulfur and thiosulfate Liquid media as compared with other isolate and used as inoculum in pots experiment .The pots are filled with 4 Kg soil of Qurna Fertilizaed with nitrogen fertilizer and potassium fertilizer as recommended maize and added the sulfur levels (0,2,4,6) tan S. Ha-1 soil and rock phosphate levels (0,400,800,1600) Kg rock.Ha-1 .The pots have been divided into two parts: one of them is inoculation with 15 ml of T2 isolate and the other is left without inoculated and incubated pots laboratory for a month and moisteur tap water to complete the process of sulfer oxidation. After the end of the incubation the pots trancfered to the wired of the college of Agriculture, University of Al-Basra and planted with seeds of maize by (6) seed .pot-1 and placed according to the design (RCBD) with three replications . After germination with 60 days took samples from the soil 14 ,42and exet the experiment and measurement of avilable phosphorus. The results showed that the treatment of best isolated T2, 6 tan.ha-1 1600 Kg rock.ha-1 as gived the highest concentration of available phosphorus in the soil 90.60 ,48.43 and 44.75 mg P. kg-1. soil during the two- six-week periods and after harvest as compared to the treatment without inoculation and non treatment with sulfur and rock phosphate, which has given the available P 15.68 , 12.89 and 8.88 mg P. kg-1 soil during the same periods respectivelly..

The Effect of Mineral, Organic and Biofertilizeres on the Growth of Zea mays L.

Bushra Mahmoud Alwan; Ahmed Majid Kareem

Al-Qadisiyah Journal For Agriculture Sciences, 2017, Volume 7, Issue 2, Pages 67-77
DOI: 10.33794/qjas.2017.162618

An Implemented pot experiment has been conducted in Al-Qadisiyah city - sadder AL- Yusufiya - District 9 in Spring planting season 2016 to study the effect of the overlap between the mineral , organic and bio fertilization in some growth indicators to maize crop (Zea mays) in Silt Loam texture soils with factorial experiement according to completely randomize design (Complete random design) and with three replicates. The expenneit has been done by adding mineral fertilizers (240 kg N. ha-1 and 80 kg P. ha-1 and 120 kg K. ha-1) three levels (0, 50% and 100%) respectively; and two levels of organic fertilizer (0 and 10 Mg. ha-1) respectively; and two levels of bio-fertilizer (0 and 2 ml. L-1) respectively to the irrigation water.
The addition of mineral , organic and bio fertilizers has a significant effecct on the dry matter amount and the treatment (M2O1B1) is given the highest average of the dry matter,which reaches to 57.27 g.pot-1 as compared with the control treatment (M0O0B0), reacches to 20.46 g.pot-1 and the increasing percentage reach to 179.91%. There are no significant differences between (M1O1B1) and (M2O1B1).
The triple overlap among the metal and organic fertilizers and bio has a significant effect on increasing the percentages of N, P and K in maize plants%, the treatment (M2O1B1) has achieved the highest average of 3.67% N and 0.49% P and 2.19% K respectively, compared with the treatment control (M0O0B0) 2.21% N and 0.23% P and 1.33% K sequentially with increasing which presentage reached to 66.06 N% and 113.04 P% and 64.66 K%. There are no significant differences between the treatments (M1O1B1) and (M2O1B1). (M2O1B1).

Effect of Time and the Level of Agricultural Sulfur Application on the Uptake of (P, Fe, Zn) in Plant on Growth and Yield of Two Genotypes of Maize (Zea mays L.)

Firas W. Ahmed

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 2, Pages 136-150
DOI: 10.33794/qjas.2016.115299

A field experiment is carried out in one of the farmers' fields in the north-east of Ramadi District area in Anbar Province during growth season 2012 -2013 in a Silty Loam texture soil, to study the effect of time and the level of agricultural sulfur application on the uptake of ( phosphorus, iron, Zinc ) in plant and the growth of two genotypes of maize plant Zea mays L. (genotypes 5012 and genotypes 106). The agricultural sulfur produced locally in Mishraq fields (95% S) in two levels ( 0 , 2500 ) Kg.ha-1 on fure time ( applied when agriculture, applied a month later of planting, applied two months later of planting, applied three months of planting) , nitrogen is at a rate of 320 kg.ha-1 using urea (46% N) phosphorus is added at a rate of 100 kg P.ha-1 using the fertilizer DAP (21% P) and potassium is added at a rate of 180 kg K.ha-1 using potassium sulfate (41.5 % K) , according to a global experience within the randomized complete block design (RCBD) and three replicates.
The results show a significant increase in genotypes 106 other than genotypes 5012 in the uptake of (phosphorus, iron and zinc)and in the plant and (dry weight of shoots, the number of grains per head and yield) when agricultural sulfur is applied to the soil, and treatment of agricultural sulfur two months later of planting (T3) also give a significant increase in indicators as compared to treatment (T1), which give the lowest values, the treatment of agricultural sulfur application is higher than control where it gave the highest average of grain yield to 6.15 T.ha-1,in an increase of 23.74% compared with the control treatment, application of agricultural sulfur gave a significant effect on grain yield as T3 treatment achieved a higher yield of 6.63 T.ha-1 in an increase of 17.13% as compared with treatment T1, which give less yield of grain of 5.66 T.ha-1.