Regulation of quality of naked oats under different irrigation regumes

Abstract

Abstract Naked oat (Avena nuda L.) is rich in protein, fat, soluble dietary fiber and other nutrients that the human body needs; it is an important grain, feed and forage crop. Here, we investigated the effects of different irrigation and fertilization conditions on naked oat yield and quality in semi-arid regions in agriculture-pastoral zone in semi-arid areas. The experiment was carried out in a non-weighing lysimeter with four irrigation quotas (750m3·ha− 1, 1500m3·ha− 1, 2250m3·ha− 1 and 3000 m3·ha− 1) and fertilizer versus non-fertilizer to analyze the effect of different water and fertilizer conditions on the yield and quality of naked oats. The seed yield of naked oats increased as irrigation quota increased, and the highest yield of 3253 kg·ha− 1 was achieved at 3000 m3·ha− 1. An increased irrigation quota promoted the synthesis of protein, group fiber, starch and amino acid and the breakdown of fat in naked oats. Fertilizer application improved naked oat seed yield by 42.5% and facilitated an increase in the levels of protein, fat, crude fiber, starch and amino acids. This experiment provides a theoretical basis for the cultivation of naked oats in agriculture-pastoral zone in semi-arid areas.