Effects of water and humic acid on drought resistance, yield and quality of oat

Abstract

Under the rainproof shelter and pot cultivation conditions, we use two oat varieties, rietyan5’ and‘ Baiyan2aiyanesns, we effect of two water (45%, 75% field water capacity (FWC)) and spraying humic acid water soluble fertilizer at different growth stage on drought resistance, yield formation and quality. We hope to reveal the mechanism of water and humic acid water soluble fertilizer from physiology, photosynthesis, yield formation and quality, which will provide theoretical basis on high yield and good quality oat production in Inner Mongolia. The results show as follows: Spraying humic acid can significantly improve oat grain yield. Under water stress, Neiyan 5, Baiyan 2 spraying humic acid at heading and jointing stage, the grain yield of increased 9.63%, 12.24% respectively than CK.Under water stress, the grain β-glucan contant of spraying humic acid treatments in filling stage increased 46.14%, 29.11% than the CK.