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تأثير مستويين من البوتاسيوم ومواعيد إضافتهما في مكونات وحاصل حنطة الخبز Triticum aestivum L. صنف أدنه-99

Year: 2018
Type: article
Abstract: A field experiment carried out in the field of higher studies research station D of the College of Agriculture - University of Baghdad / Jadriya for the winter season 2015-2016 with the aim to finding the best level of potassium and the best time to add it and effect the interaction between them to obtaining the highest yield of bread wheat crop (Triticum aestivum L.) R.C.B.D was used to split-plots design and three replicates. The main plots included two levels of potassium (100, 150) kg K ha-1, while the secondary plots included eight dates to add the levels of potassium in combinations as well as the date of comparison (without the addition of potassium) In four stages of addition and Are (on planting ZGs00, Tillering ZGs21, Elongation ZGs32,and Booting ZGs49). The results of the experiment showed that the level of potassium superiority 150 kg K ha-1 in most of the characteristics of the crop and its components. The number of spikes per square meter is 321.6 sp. m2, the number of spikes in spike is 20.5, the number of grains in spike 45.1, the weight of 1000 grain is 41.2 g , the grain yield is 5.99 tons ha-1,the biological yield 20.03 ton ha-1). Fertilized plants with the potassium level achieved 100 kg K ha-1. The highest averages in the characteristics of the harvest guide was 29.8%, the percentage of protein in the grain was 14.5% and the percentage of carbohydrates in the grains was 78.2%. There was a significant response among the Factors in most of the studied properties. The highest response was between potassium Level 150 kg K ha-1 and the Date D5 (1/2 K at planting ZGs00 + 1/2 K at the onset of the ZGs49 sheath leaf) for the two The grain yield is 6.77 tons ha-1 and the biological yield is 20.34 tons ha-1.
Language: Arabic
Subfield: Soil Science
Open Access status: diamond
OpenAlex ID: W7160730753
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