Studying the Effect of Adding Different Rates of Phosphate Fertilizer on Seed Yield and Some of Its Components of Black Seed (Nigella sativa L.) in the Second Stability Zone

Abstract

 The research was carried out during the agronomic season 2018-2019 in Jarjanaz, Idlib Governorate, located in the eastern countryside of Maarat al-Numan.In order to study the response of the black seed crop to different rates of phosphate fertilizer and its impact on the productive characteristics of this crop. The seeds were planted in a dry way and on lines [10 x 500] cm. The experiment was carried out according to a randomized complete design (RCBD), with four Rates of phosphate fertilizer [0], [120], [150], [180] kg super phosphate/ha, according to four replications for each treatment.

The results showed that the addition of (180) kg / ha of super phosphorous fertilizer led seed yield of [1668] kg / ha, as well as in the number of seeds/ plant [535], and a thousand seeds weight of [2.687]. Seed yield was highly positively correlated with each of the traits of

weight, number of seeds/plant and vital yield, and the correlation coefficient between them was r = (0.452-0.455-0.0.480) respectively.