Możliwość zwiększenia plonu ziemniaka wczesnego przez stosowanie dolistne krzemu


This paper analyses the effect of dosage (0.25 dm3 ha–1 or 0.50 dm3 ha–1) and time (the leaf development stage – BBCH 14–16, tuber initiation stage – BBCH 40–41, at both the leaf development stage and tuber initiation stage) of silicon-based stimulant Optysil application (200 g SiOand 24 g Fe in 1 dm3) on early potato yield and yield components. Optysil resulted in an increase in tuber number and tuber weight per plant. As a result, under periodic water deficits during tuber bulking, Optysil increased marketable tuber (with a diameter above 30 mm) yield by an average of 6.90 t ha–1 (50%) and under drought conditions during the potato growth period by 0.70 t ha–1 (8.6%). Under periodic water deficits during tuber bulking, the marketable tuber number per plant and marketable yield were greatest after applying 0.50 dm3 ha–1 of Optysil in the tuber initiation stage (BBCH 40–41). Under drought conditions, the most practical were two Optysil applications at 0.25 dm3 ha–1. The Optysil application improved the market value of the early potato yield by increasing the share of medium-sized tubers (with a diameter of 41–50 mm).

Słowa kluczowe

stimulant; sodium metasilicate; early potato; tuber number; tuber weight; tuber yield

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Opublikowane : 2022-07-27

Wadas, W. (2022). Możliwość zwiększenia plonu ziemniaka wczesnego przez stosowanie dolistne krzemu. Agronomy Science, 77(2), 61-75.

Wanda Wadas
Institute of Agriculture and Horticulture, Siedlce University of Natural Science and Humanities, B. Prusa 14, 08-110 Siedlce, Poland  Polska

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