Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 2
Written by Elena PARTAL, Cătălin Viorel OLTENACU
In conditions of the modernization of agriculture, knowledge about the weeds can influence the production are required. The researches were performed during the 2018-2021, in the experimental field of NARDI Fundulea and aimed to study the influence of agrotechnical practices on the weeds and water balance in soil. The paper presents the results obtained in long term experiences with fertilizers, soil tillages and crop rotations. The crops showed an infestation with monocotyledonous and dicotyledonous weeds, represented as follows: weed wheat crop 27%, weed maize crop 80%. Weeding sources and the number of weeds are higher in the soils where the manure is administered, it is not herbicided and for the seed in uncultivated land. The dynamics of the soil moisture reserve was correlated with the precipitation regime and the water consumption of the plants. The reporting values for determining the soil moisture were as follows: Field capacity - 4,391 m.c./ha; Withering coefficient - 2,132 m.c./ha. Monthly determinations of soil moisture revealed atypical values of humidity at a depth of 0-75 cm, finding a variable amount of water.
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