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6600. Soni, P. and R.S. Ambasht. 1977. Effect of wheat crop-weed competition on the mineral structure of wheat crop.. Agro-ecosystems, 3:325-336.
It was found that the reduction in the concentration of nitrogen and phosphorous in the wheat plant started at the vegetative stage itself due to interference from weeds in the weedy stand and the maximal reduction was at the flowering stage (perhaps due to the maximal density of weeds at that stage). From the above investigation it is concluded that weeds growing along with crop plants significantly affect the mineral status of the crop as well as uptake, return and retention by wheat plants.