GeographyRN: Inland Waters (Sub-Topic)最新文献

筛选
英文 中文
Silicon Fertilizers for Sustainable African Agriculture in Dry and Semi-dry Regions 非洲干旱和半干旱地区可持续农业的硅肥
GeographyRN: Inland Waters (Sub-Topic) Pub Date : 2020-08-05 DOI: 10.2139/ssrn.3667562
E. Bocharnikova, V. Matichenkov
{"title":"Silicon Fertilizers for Sustainable African Agriculture in Dry and Semi-dry Regions","authors":"E. Bocharnikova, V. Matichenkov","doi":"10.2139/ssrn.3667562","DOIUrl":"https://doi.org/10.2139/ssrn.3667562","url":null,"abstract":"The largest amount of fresh water (up to 70% worldwide) is consumed for agricultural purposes. Fresh water deficiency is a major limiting factor affecting the sustainable and productive agriculture in dry and semidry regions. Modern irrigation systems like surface and subsurface drip irrigation provide a significant reduction of fresh water consumption, but they are unsuitable for large fields and costly for ordinary farmers. Our greenhouse and climatic chamber tests on barley, corn, and cotton evidenced that additional plant Si nutrition contributes to the drought tolerance of cultivated plants. Silicon-supplied plants demonstrated an increase in the biomass by 15 to 50% under decreased water irrigation rate by 40 to 60%. Several hypotheses concerning the role of Si in water-stressed plants have been assumed: Si promotes additional root formation, reduces pore diameter of leaf blades, changes leaf orientation, optimizes water transport, and induces plant systemic resistance. Field tests in Russia (corn, wheat), USA (sorghum), Australia (sugarcane, corn) and China (potatoes) have shown that liquid and solid Si fertilizers allow a reduction in irrigation rate by up to 50% and enhance plant survival under drought. On average, crop yield increased by 11 to 35%. The combination of Si fertilizers and traditional NPK fertilizers provided the best effect on water-stressed plants. Solid Si fertilizers can be mixed with regular NPK fertilizers. Liquid Si-rich substances can be applied together with irrigation water or pesticides.","PeriodicalId":404985,"journal":{"name":"GeographyRN: Inland Waters (Sub-Topic)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123330673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信