The impact of planting method and nitrogen chemical biofertilizer on the sunflower yield components

Subject Areas : crop production

مريم پیرمحمدی ¹ , علی نصرالله زاده اصل ²

1 - دانش آموخته کارشناسی ارشد گروه زراعت کشاورزی، واحد خوی، دانشگاه آزاد اسلامی خوی – ایران
2 - گروه کشاورزی-دانشکده کشاورزی-دانشگاه ازاد اسلامی خوی

Received: 2014-10-22 Accepted : 2015-01-15 Published : 2014-07-17

Keywords: planting method – yield – biofertilizer – 100-seed weight,

Abstract :

In the direction of chemical fertilizer reduction and avoidance of environmental pollution, an experiment was carried out, using the nitroxin biofertilizer and refining the planting methods, on the sunflower yield components. It was done in factorial complete random blocks with two factors and three replications in Chaypareh, in 1393. The first planting method included two levels ( plot and mound stream ), the second one with nitrogen fertilizer in six levels ( control, biofertilizer of bionitroxin together with 50 kg of urea chemical fertilizer; nitroxin biofertilizer with 150 kg urea, and 200 kg urea chemical fertilizer. The results showed that the nitrogen fertilizer had significant impact on the height of stalk, diameter of bush and anthodium, 100-grain weight, number of seeds on the plate, and seed yield. The highest seed yield was seen in complete use of urea fertilizer treatments and nitrogen biofertilizer with 150 kg urea chemical fertilizer. These two treatments, in seed yield, were in one statistical group which are recommended for the reduction of chemical fertilizer and environment preservation by which %25 of urea fertilizer consumption is reduced. The effect of planting method was also meaningful to the brush height, plate and stalk diameter, 100-seed weight, the number of seeds on the plate, and seed yield. The highest seed yield was seen as 599.08 kg per square meter by planting on stream mound method. In this case, plant uses the natural resources efficiently and the seed yield is increased by %20 in mound planting method.

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