Impact of bacteria-nitrogen coupling on cotton growth and nitrogen utilization under different salt stress

土壤盐分 枯草芽孢杆菌 肥料 农学 盐度 环境科学 碱土 播种 氮气 化学 土壤水分 生物 土壤科学 细菌 生态学 遗传学 有机化学
作者
Beibei Zhou,Ruonan Jia,Xiaopeng Chen,Lu Yang,Manli Duan,Xiao Fan,Chaofan Liang,Dehua Zhou,Wei Li,Chaofeng Liu
出处
期刊:Agricultural Water Management [Elsevier BV]
卷期号:280: 108221-108221 被引量:13
标识
DOI:10.1016/j.agwat.2023.108221
摘要

Soil salinization has seriously affected crop growth and fertilizer utilization efficiency in agricultural production, thus restricting the food production and sustainable development of agriculture in arid areas. Therefore, how to improve the saline-alkali land improvement and fertilizer utilization efficiency will directly affect agricultural development in arid areas. Bacillus subtilis had certain advantages in saline-alkali land improvement by inhibiting the accumulation of excessive sodium and improving the absorption of nutrients by crops. So this study proposed to use the functional advantages of Bacillus subtilis in the root layer soil, and establish a bacteria-fertilizer coupling improvement strategy to improve cotton growth and soil nitrogen use efficiency under salt stress. In this study, the physiological characteristics of crops under different soil salt stress were analyzed by pot planting cotton. Four application amounts of Bacillus subtilis agent (2.5, 5.0, 5.0 and 10.0 mg·kg−1) and three application amounts of nitrogen fertilizer (150, 300 and 450 kg·hm−2) were applied in four kinds of soil with different salinity (nonsalinized, mildly salinized, moderately salinized and severely salinized). Through the 3414 experimental design method, a total of 15 cross-treatments were set, including blank control. And three groups of control repetition were set in the experimental design. The results showed that the application of Bacillus subtilis improved the water retention and nitrate nitrogen retention of saline-alkali soil. When the application amount of nitrogen fertilizer was 300 kg·hm−2 and the application amount of Bacillus subtilis agent was 5.0 mg·kg−1, the growth index (plant height, stem diameter, and biomass) of cotton reached the maximum value. Malondialdehyde content increased with the increase of soil salt content, which showed salt stress could cause oxidative damage to leaves. Application Bacillus subtilis agent promoted the activity of Peroxidase and Catalase enzymes in leaves and protected plants against the damage caused by salt stress. The application of Bacillus subtilis agent and nitrogen fertilizer could improve the physiological activity of leaves and reduce oxidative damage under salt stress. According to the cotton yield, the coupling application of Bacillus subtilis agent and nitrogen fertilizer significantly increased the dry matter accumulation and final yield of cotton. Compared with the control treatment, the cotton yields of Bacillus subtilis agent and nitrogen fertilizer applications treatments increased by 10.47–65.52%, which has a positive effect on improving the cotton yield in saline-alkali soil. Based on the above results, this study could serve as a theoretical basis for harnessing saline-alkali land and promoting sustainable development of agriculture in arid regions.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
下雨的颜色完成签到,获得积分10
刚刚
火星上雨珍完成签到,获得积分10
刚刚
深情安青应助孤独的珩采纳,获得10
刚刚
1秒前
李嘉儿完成签到,获得积分10
2秒前
柏林寒冬应助沉默的宛筠采纳,获得10
3秒前
3秒前
4秒前
吃饱饱完成签到,获得积分10
4秒前
华仔应助E402采纳,获得50
5秒前
6秒前
烟花应助小陆采纳,获得30
6秒前
Aubrey发布了新的文献求助10
7秒前
9秒前
zcr完成签到,获得积分10
10秒前
李冠龙完成签到,获得积分10
11秒前
11秒前
wq完成签到,获得积分10
11秒前
孤独的珩发布了新的文献求助10
12秒前
13秒前
13秒前
99v587完成签到,获得积分10
14秒前
14秒前
茄子爱睡觉完成签到,获得积分10
14秒前
JWonder完成签到,获得积分10
14秒前
22222发布了新的文献求助10
15秒前
15秒前
Ava应助她很可疑啊采纳,获得10
15秒前
Jasper应助魔飞采纳,获得10
16秒前
SciGPT应助汉堡上的鸽子粪采纳,获得10
16秒前
怪味豆发布了新的文献求助10
16秒前
JWonder发布了新的文献求助10
17秒前
18秒前
智慧女孩发布了新的文献求助10
18秒前
汉堡包应助西西采纳,获得10
18秒前
善学以致用应助moshi采纳,获得10
18秒前
19秒前
19秒前
Jasmine完成签到,获得积分10
19秒前
21秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969884
求助须知:如何正确求助?哪些是违规求助? 3514604
关于积分的说明 11174901
捐赠科研通 3249928
什么是DOI,文献DOI怎么找? 1795149
邀请新用户注册赠送积分活动 875599
科研通“疑难数据库(出版商)”最低求助积分说明 804891