Effect of some organic manures and agrochemical amendments on quality and yield of flax and soybean crops under field conditions [electronic resource].

Includes references.

Two field experiments were carried out at Sakha Experimental Station, Kafr EI-Sheikh Governorate during the two successive seasons, winter ,1999 and summer ,2000 to assess the effects of soil surface application of sewage sludge (3 & 5% SS), poultry manure ( 1 & 2 % PM), processed town refuse ( I & 2 % PTR), mixture of (I: I) sewage sludge and poultry manures (1,2 & 3%) and recommended rates ofNPKmineral feliilizers (RRF) without (alone) or with gypsum, 5Mg fed-lor sulphur, 400 Kg fed- l as soil conditioners on the biological yield and quality of flax and their residual effects on the following soybean crop. Added biosolid and agrochemicals were incorporated into the soil (0-1 '5 cm) before planting. The obtained data revealed that the addition of organic manures with or without soil conditioners significantly increased the seed, straw and oil yields of flax crop_ Application of 2% PM without gypsum or sulphur recorded the high straw yield of flax and surpassed the control by 53% and RRF by 34%. In addition, essential and non essential elements were increased in flax straw and seed with addition of biosolids with or without agrochemicals .Appreciable amounts of NPK was higher in flax seed than straw. Concentration of Cd, Ni and Pb of straw were higher than the normal ranges and less than the toxic limits for these plants.

Summary in Arabic.

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