Sodininkystė ir daržininkystė - Sodininkystės ir daržininkystės institutas

Table 3. The influence of fertilizing with wood ash on the quality ofred beet roots3 lentelë. Træðimo pelenais átaka burokëliø ðakniavaisiø kokybeiVëþaièiai, average data of 2003-2004 / Vidutiniai duomenysTreatmentsVariantaiVitamin CVitaminas CNitratesNitrataiCrudeproteinŽalieji proteinaiN P K Camg kg -1 %Without wood ash / be pelenø 6.62 463 10.3 1.64 0.17 2.50 0.1423 t ha -1 wood ash / pelenø 7.44 468 10.8 1.74 0.17 2.28 0.1606 t ha -1 wood ash / pelenø 7.10 405 11.0 1.78 0.17 2.38 0.1669 t ha -1 wood ash / pelenø 7.58 564 9.9 1.59 0.17 2.28 0.166R 05 / LSD 05 4.42 146.7 1.87 0.31 0.001 0.559 0.028Potato (Solanum tuberosum L.) tuber yield, depending on differentmeteorological conditions, varied from 10.8 to 16.3 t ha -1 in not fertilized andfrom 11.8 to 21.2 t ha -1 in fertilized with wood ash treatments (Table 4). Thegrowing conditions for potato were more favourable in 2003 (higher yieldswere obtained). Less potato tuber yields were obtained in 2004, becausePhytophthora infestans spread.Table 4. The influence of fertilizing with wood ash on the yield ofpotato tubers t ha -14 lentelë. Træðimo pelenais átaka bulviø gumbø derliui, t ha -1Vëþaièiai, 2003-2004Treatment / VariantasYear / Metai2003 2004AverageVidurkisRelative valuesSantykiniai skaièiaiWithout wood ash / be pelenø 16.3 ± 1.42 10.8 ± 0.47 13.6 ± 1.23 1002 t ha -1 wood ash / pelenø 17.9 ± 1.20 11.8 ± 0.68 14.8 ± 1.23 1094 t ha -1 wood ash / pelenø 19.5 ± 1.87 13.5 ± 0.44 16.5 ± 1.46 1216 t ha -1 wood ash / pelenø 21.2 ± 1.34 13.0 ± 0.94 17.1 ± 1.59 126R 05 / LSD 05 1.47 1.14 0.93According to the average data, potato yield in fertilized with wood ashtreatments increased from 1.2 to 3.5 t ha -1 or by 9-26%. All wood ash ratessignificantly increased potato tuber yield (in 2003 F act.= 19.05 > F tabl.0.1= 5.41,in 2004 F act.= 12.02 > F tabl.0.1= 6.99). The highest ash rate was the most effectivecomparing to the other wood ash rates. Potato tuber yields in treatments,where 4 and 6 t ha -1 of wood ash were applied, were similar (16.5 and 17.1 t ha -1respectively), and this difference wasn’t significant. The highest potato tuberextra-yield (0.72 t ha -1 ) from one t ha -1 of wood ash was determined whenfertilizing with 4 t ha -1 .The amount of nutrients accumulated in potato tubers in 2003 and 2004211