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Cite this article:田永雷,白春利,慕宗杰,等.施氮肥对阴山北麓饲用燕麦渗透调节物质的影响[J].灌溉排水学报,,():-.
TIAN Yong-lei,BAI Chun-li,MU Zong-jie,et al.施氮肥对阴山北麓饲用燕麦渗透调节物质的影响[J].灌溉排水学报,,():-.
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DOI:
Effects of Fertilization on Physical and Chemical Properties and Bacterial Effects of nitrogen application on osmotic regulation substances of forage oat at the northern foot of Yinshan Mountain
TIAN Yong-lei1, BAI Chun-li1, MU Zong-jie2, SUN Lin1, NA na1
1.Grassland Research Institute,Academy of agriculture and animal husbandry Sciences,Inner Mongolia;2.animal husbandry economy and information, Academy of agriculture and animal husbandry Sciences
Abstract:
【Objective】 Inner Mongolia autonomous Region is one of the main growing areas of forage oat in China. With the growing area of forage oat in the northern foot of Yinshan Mountain gradually increasing, how to scientifically fertilize forage grass is an urgent problem to be solved. In order to investigate the physiological response of oat oat to nitrogen fertilizer and its difference in the northern foot of Yinshan Mountain, the appropriate nitrogen application rate was proposed.【Method】 In this study, feeding oat was used as material, nitrogen application levels of 0, 150, 200, 250, 300, 350 kg/hm2 were set, and nitrogen application rates of 15%, 35%, 30% and 20% were applied at seedling stage, tillering stage, elongation stage and booting stage, and analyzed at booting stage, heading stage and filling stage. 【Results】 With the increase of nitrogen application rate, the soluble sugar content and starch content of feeding oat leaves were gradually decreased, and those of no fertilization treatment were significantly higher than those of fertilization treatment (P < 0.05). The soluble protein content of feeding oat leaves was firstly increased and then decreased, and 250 kg/hm2 treatment was significantly higher than other treatments (P < 0.05). The content of free amino acids increased gradually with the increase of nitrogen application rate, and the content of free amino acids in fertilization treatment was significantly higher than that in no fertilization treatment (P < 0.05). 【Conclusion】Appropriate increase of nitrogen fertilizer is beneficial to the growth and development of forage oat, and the recommended fertilizer application rate of forage oat is 250 kg/hm2 in the northern foot of Yinshan Mountain.
Key words:  North;foot of;Yinshan Mountain, forage;oat, nitrogen;fertilizer, osmotic;regulation substance