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- Title
INFLUENCE OF THE APPLICATION OF ORGANIC FERTILIZERS IN ASSOCIATION WITH DIFFERENT FUNGICIDES ON THE LATE BLIGHT (PHYTOPHTHORA INFESTANS) ATTACK IN POTATO.
- Authors
Hermeziu, Manuela
- Abstract
Challenges related to adaptability to the new climatic conditions and to the efficiency of the use of inputs by different potato varieties are permanent. The experience carried out in 2017 aimed to determine the effect of some organic fertilizers on potato plants, by reducing the intensity of late blight attack and to observe the influence on yields level. The classical cultivation technology was used, including a normal fertilization regime (800 kg NPK / ha), over which foliar treatments were applied simultaneously with those for potato late blight control (Phytophthtora infestans). Treatments were applied to the potato variety Brasovia, created to NIRDPSB Brasov. The experience included 3 variants, a control one (untreated) to which no fertilizers were applied, a variant to which fertilizers and recommended doses of fungicides were applied and a variant with fertilizers and only 50% of the recommended fungicides doses. The results obtained with foliar treatments combined with fungicides applied for late blight control determined yield increase, 3.4 t / ha, compared to the untreated. The yield increase as a result of foliar fertilization may be due to the increase in tubers weight and the number of tubers/plant. The data obtained will be supplemented with the results of the following years so that farmers reach complex technological solutions that will contribute to the increase of the economic efficiency of the potato crop.
- Subjects
ORGANIC fertilizers; FUNGICIDES; PHYTOPHTHORA infestans; POTATO yields; FOLIAR feeding
- Publication
Romanian Journal for Plant Protection, 2019, Vol 12, p8
- ISSN
2248-129X
- Publication type
Article