期刊
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
卷 22, 期 3, 页码 3568-3581出版社
SPRINGER INT PUBL AG
DOI: 10.1007/s42729-022-00910-z
关键词
Biochar; H+-pumps; K+; Na+ ratio; Nanocomposite; Nutrient uptake; Sodium
资金
- Iran National Science Foundation [98025157]
This study investigated the effects of biochar-based nutritional nanocomposites on nutrient uptake, tonoplast activities, and growth of salt-stressed dill plants. The results showed that biochar treatment improved soil properties and nutrient absorption, reduced sodium adsorption and toxicity, and enhanced the growth of dill plants.
Application of enriched biochar with essential nutrients can modify soil properties and nutritional value. So, this research was aimed to investigate the efficacy of biochar-based nutritional nanocomposites on nutrient uptake, H+-pump activities in tonoplast, and growth of salt-stressed dill plants. The effects of pristine biochar (30 g kg(-1) soil) and biochar-based nutritional nanocomposites (BNCs) of iron (30 g BNC-FeO kg(-1) soil), zinc (30 g BNC-ZnO), and their combined form (15 g BNC-FeO + 15 g BNC-ZnO kg(-1) soil) on soil properties, H+-ATPase and H+-PPase activities of root tonoplast, nutrient content, and performance of dill were evaluated under various salinity levels (non-saline, 6 and 12 dSm(-1)). This experiment was carried out as factorial on the basis of randomized complete block design with three replications. Addition of different forms of biochar to the soil increased soil pH, cation exchange capacity values, and absorption rates of K, Ca, Mg, Fe, and Zn, and decreased sodium adsorption ratio, exchangeable sodium percentage of soil, sodium and chloride absorption rates of plants, and activities of H+-ATPase and H+-PPase, with the superiority of BNCs. The higher root and shoot K+/Na+ ratios in biochar-related treatments especially BNC-FeO + BNC-ZnO were associated with the high sodium sorption capacity of these treatments that improved the growth of dill plants. The results suggested that biochar-based nanocomposites of Fe and Zn can potentially alleviate salt toxicity and improve root and shoot growth of salt-subjected plants by decreasing Na uptake as well as by enhancing essential nutrients.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据