Poljoprivreda, Vol. 12 No. 1, 2006.
Izvorni znanstveni članak
EFFECT OF THE FOLIAR BORON FERTILIZATION ON SUGAR BEET ROOT YIELD AND QUALITY
A. Kristek
Biserka Stojić
Suzana Kristek
Sažetak
Effect of foliar fertilization with Fertina B element on sugar beet root yield and quality was investigated on two soil types (marsh gleyish hydro-meliorated and loess pseudo-gley ) poor in boron supply. The research was conducted in the growing season period of 2004th and 2005th. The research aimed to determine both needed boron amount in a foliar fertilization and necessary number of treatments. Increased level of top dressing boron led to increased sugar beet root yield and quality, only by 1 kg B/ha. Further progress followed was not significant. The most efficient fertilization appeared to be when conducted twice: first prior sugar beet leaf formation (end of May, beginning of June) and second, 10-14 days later. Root yield of 85.45 t/ha, sugar content of 14.92% and sugar yield of 11.12 t/ha was obtained by the most efficient variant (1 kg B/ha twice), for two localities and two years on the average. Compared to the control variant, root yield is higher by 13.86 t/ha (19.4%), sugar concentration higher by 1.46% (relative 10.8%) and sugar yield higher by 3.15 t/ha (39.5%). Based upon these results, foliar fertilization with 1.0 kg B/ha is suggested for soils characterized by insufficient boron supply. It should be added through two top dressings, first prior leaves formation and second 10 -14 days later.
Ključne riječi
sugar beet; foliar fertilization; boron; root yield; quality
Hrčak ID:
5956
URI
Datum izdavanja:
20.6.2006.
Posjeta: 3.722 *