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Effect of some agronomic practices on sunflower production 1- planting date and planting distances on growth of some sunflower cultivars



Effect of some agronomic practices on sunflower production 1- planting date and planting distances on growth of some sunflower cultivars



Annals of Agricultural Science, Moshtohor 30(1): 83-97



In field experiments at Abo-Sweir, Ismailia in 1986 and 1987 sunflowers Maiak, H7116, H7780 (1986) H7107 (1987) were sown at 23 333, 29 167, 38 888 or 58 333 plants/feddan. In 1986 sowing dates were 22 May, 14 July, 5 Aug., or 14 Nov., and in 1987 10 Apr., 5 June or 14 July. In 1986 the May sowing gave the greatest LAIs of 0.83, 0.75 and 1.25, and greatest total plant DW of 133.83, 134.66 and 180.49 g for H7116, H7780 and Maiak, respectively.

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