Kukurūzų, įsėlinių tarpinių augalų ir piktžolių konkurencingumo tyrimai

Abstract

In 2011, a field experiment was carried out at the Experimental Station of the Aleksandras Stulginskis University (ASU) on a silty loam (Calc(ar)i-Epihypogleyic Luvisol, LVg-p-w-cc(sc)). The study was aimed to establish the interaction between maize and living mulch and its influence on maize crop weediness and productivity. Maize crop inter-rows were sown with spring oilseed rape (Brassica napus L.), white mustard (Sinapis alba L,), spring barley i Hordeum vulgare L.), Italian ryegrass (Lolium multiflorum Lamk.), black medic {Medicago lupidina L.), Persian clover (Trifolium resupinatum L.) and red clover (Trifolium pratense L.) plants as living mulch. The air-dry shoot mass of weed slightly depended on mass of living mulch (r=-0,444). Living mulch mostly had negative influence on maize height, length of cobs and mass productivity. The most important influence was on the height of maize. There were found relations between height of maize and weed (r =-0,453) or living mulch air-dry shoot mass (r =-0,434), between maize green biomass and living mulch air-dry shoot mass (r =-0,585).