in order to determine the critical period of weed control (cpwc) in corn (zea mays l.), an experiment was carried out in a randomized complete blocks design with 14 treatments and three replications during 2013 growing season in the nahavand climatic conditions. two series of the treatments including weed-free and weed-infested were applied in the regular time distances of 10, 20, 30, 40, 50 an...

The present paper deals with the study of biomass production of manures in the greens such as Amaranthus polygamus and Amaranthus viridis of the family Amaranthaceae and Spinacea oleracea of the family Chenopodiaceae. The medicinal uses and pharmaco - phytochemical analysis were also carried out for the plant species which are widely used as greens.

Spinach (Amaranthus tricolor L.) is a plant whose leaves are usually consumed as vegetables. The purpose of this study to analyze spinach (A. farming in an ecological, economic and social perspective formulate sustainable strategies Pekanbaru City. research was conducted the city May-July 2020. This using survey method field obtain relevant information about implementation results area land for...