ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785


Published in Scientific Papers. Series A. Agonomy., Vol. LVI
Written by Nicolaie IONESCU, Aurelian PENESCU, Sorin Gabriel IONESCU

In the new conditions, IWM goal is both to protect plant biodiversity and cultural environment. Promoting such a system requires complex research on: i) weed flora, ii) the climatic conditions, iii) interaction between weeds and crop plants, iv) various control methods, chemical and non-chemical, v) combining control methods for promoting the nonchemical. Very diverse flora from maize crop has reached averages of 16.9 t.ha-1, benefiting the rich rainfall years. Naturally weed encroachment of maize produced total biomass and grain to about 50% of that without weeds. Manual and mechanical hoed have minimized the degree of weed. In witness an-hoed weeds produced 1.5-1.7 kg.m-2 biomass, competing strongly maize plants. Specific herbicides have maintained levels of weed coverage degrees (WCD) below 20% during the growing season. The comparison of hoeing and herbicides effects showed similar circumstances.

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