Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : Potassium Fertilizer


Effect the Treatments of Biofertilizer and Mineral Fertilizer on C ontent of N P K of Soil Cultivated with Crop Corn (Zea Mays L).

Mohammed Aajmi Salman; Jawad A. Kamal Al-Shibani

Al-Qadisiyah Journal For Agriculture Sciences, 2019, Volume 9, Issue 2, Pages 247-256
DOI: 10.33794/qjas.2019.167064

Beneficial microorganisms play a key role in the availability of ions minerals in the soil and use Randomized Complete Block Desing ( R.C.B.D ). The objective of this paper to the study effect of the of biofertilizer and miniral treatments on availability of NPK for crop corn zea mays L.Two types of biofertilizer are Bacterial Bacillus subtilis and Fungal Trichoderma harianum. Three levels of potassium fertilizer are (2.9533, 0.4000 and 2.9533). A field experiment in fall season of 2018 Has been conducted in silty clay loam soil. The experimental Results indicated that Bacillus and Trichoderma inoculation separately or together Have made a significant effect to increase in the availability of N P K in the soil compare to other treatments. The grain yield is where (2.9533, 0.4000 and 2.9533) of bacterial and fungal bio-fertilizer and potassium fertilizers respectively as compared to the control.

Role of Potash Fertilization in Reduction of Water Stress in Moonbean (Vigna radiata L.) and Yield Components

A. Y. Nasralla; A. S. Ati; W. A. T. El.Fahdawi

Al-Qadisiyah Journal For Agriculture Sciences, 2016, Volume 6, Issue 1, Pages 103-115
DOI: 10.33794/qjas.2016.110167

The field study is conducted during two autumn seasons of 2012 and 2013 at Al-Anbar province to determine the actual water use by mungbean crop (Vigna radiata L.) under water stress conditions and potassium fertilizer, as well as the assessment of crop and growth characteristics. Four treatments of irrigation are used (I1 watering when %50 of available water used (treatment measure), I2 watering when %25 of treatment measure used, I3 watering when %50 of treatment measure used and I4 watering when %75 of treatment measure used) and three levels of potassium Sulfate fertilizer (41.5% K) (40, 80 and 120 kg. ha-1) in addition to the control (K0) are used, it is given K1, K2 and K3 to the potassium levels respectively. A split plot in randomized complete block design was used with three replications to do this experiment. Treatments of irrigation are used as main plots while potassium fertilizer levels are used as a sub-plot. Least significant difference (LSD) at 5% probability is used to compare the means. The treatment of I1 and I2 significantly gives the highest mean for yield and yield components without significant difference between them. I1 treatment gives the means( 35.26 and 33.83 pods. plant-1 ), the length of pod (7.49 and 7.41 cm), (7.35 and 6.62 seed. pod-1), 100-seed weight (4.07 and 3.78 gm), (1080.10 and 909.80 kg. ha-1) for the first and second seasons respectively, but I2 treatment has given the mean (34.09 and 32.64 pods. plant-1 ), (7.26 and 6.52 seed. pod-1), 100-seed weight (3.95 and 3.61 gm), (1047.10 and 881.60 kg. ha-1) for the first and second seasons respectively. Moreover K3 treatment significantly gives the highest means for yield and yield components (31.39 and 29.05 pods. plant-1 ),(6.88 and 6.04 seed. pod-1), 100-seed weight (4.03 and 3.67 gm), (895.30 and 743.10 kg. ha-1) for the first and second seasons respectively, The interaction among I1K3, I2K3 and I1K2 significantly gives the highest means for all plant characteristics without significant differences.