Seedling emergence of sweetcorn.

摘要

A study was carried out in sandy loam soil in Germany to investigate the effects of soil temperature (15-30℃) and soil water (40-80% of maximum soil water capacity) on seedling emergence of sweetcorn (cv. Excel). Emergence rates of 84-89% were obtained for all temperatures. The average emergence time between 20 and 30℃ was 5-9 days, while all seedlings had emerged after 7-14 days. Increasing soil water levels decreased average emergence time and total emergence period. Low soil water levels (40-50%) resulted in long emergence periods, as did a soil temperature of 15℃.