IMPACTS OF AGROCHEMICAL TREATMENTS IN A WINTER WHEAT MONOCULTURE
P. Jolánkai, Z. Tóth, T. Kismányoky, I. Farkas
[Poljoprivreda / Agriculture. 14(1):27-30, June 2008.]
Scientific review
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ABSTRACT Impact of pesticides and plant nutrition on wheat crop, as well as their interaction was studied in a small plot field trial run at the experimental site on eutric cambisol type soil, in 2006 and 2007. The results obtained suggest, that treatments applied – both the increasing rate of fertilizers (N0P0K0, N40P100K100, N80P100K100, N120P100K100, N160P100K100) and the increasing intensity of pesticide application (Ø, herbicide, herbicide+ fungicide, herbicide+ fungicide+ insecticide) – had significant effect on the grain yield of wheat. In case of fertilizer application each N rate resulted in a further significant yield increase in the average of pesticide applications. In 2006 the minimum yield was 2.2 t ha-1, the maximum 5.5t ha-1, and the average 4.3 t ha-1. In 2007 the minimum yield was 1.00 t ha-1 and the maximum 4.6 t ha-1 the average 3.2 t ha-1. In accordance with the increment of the level of plant nutrition and plant protection applications a decreasing magnitude of yield increase was observed. Plant nutrition applications had a more definite effect on yield figures in comparison with that of plant protection treatments. Meteorological conditions of the crop years studied were considerably buffered by agronomic applications applied. |
UTJECAJ AGROKEMIJSKIH TRETMANA U MONOKULTURI OZIME PŠENICE
Keywords: winter wheat, monoculture, plant nutrition, plant protection
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SAŽETAK U mikropokusu istraživan je utjecaj pesticida i ishrane bilja na usjev pšenice, kao i njihova interakcija. Pokus se provodio na tlu tipa eutrični kambisol u razdoblju od 2006. do 2007. godine. Dobiveni rezultati ukazuju da su primijenjeni tretmani – povećane količine gnojiva (N0P0K0, N40P100K100, N80P100K100, N120P100K100, N160P100K100) i veći intenzitet primjene pesticida (Ø, herbicid, herbicid+ fungicid, herbicid+ fungicid+ insecticid) – imali značajan utjecaj na prinos zrna pšenice. Kod primjene gnojiva svaki obrok dušika rezultirao je daljnjim signifikantnim povećanjem prinosa kod prosječne primjene pesticida. U 2006. minimalan prinos bio je 2,2 t ha-1, a maksimalan 5,5 t ha-1, dok je prosjek iznosio 4,3 t ha-1. U 2007. minimalan prinos iznosio je 1,00 t ha-1, maksimalan 4,6 t ha-1, a prosjek je bio 3,2 t ha-1. U skladu s povećanjem gnojidbe i zaštite, došlo je do smanjenja magnitude rasta prinosa. Gnojidba pšenice imala je veći učinak na prinos nego tretmani zaštite. Utjecaj vremenskih prilika na prinos u godinama istraživanja usjeva bio je značajno ublažen poduzetim agronomskim mjerama (gnojidba i zaštita). |
Ključne riječi: ozima pšenica, monokultura, biljno hranivo, zaštita bilja
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