提高小麦产量,利能力和NUE与和纳米尿素在保护耕作中的保护耕作
Nitesh Kumar1, S C Tripathi2, D B Yadav3
1ICAR-Indian Institute of Wheat and Barley Research, Agarsain Marg, P.B. No. 158, Karnal, Haryana, 132 001, India.
Scientific reports
|October 23, 2023
概括
印度的可持续小麦种植是通过在灌前应用化肥,结合纳米尿素喷雾来改善的. 这种方法提高了小麦产量和利能力,同时提高了保护农业中使用效率 (NUE).
科学领域:
- 农业科学 农业科学
- 农业学是一种农业学.
- 土壤科学 土壤科学
背景情况:
- 印度-河流平原 (IGPs) 面临着大米-小麦系统的挑战:资源枯竭,废物燃烧和低效的使用.
- 使用效率 (NUE) 的下降威胁到该地区的可持续作物生产.
- 保护性耕作和残留物保留对于可持续农业至关重要.
研究的目的:
- 评估结合常规和纳米化肥对小麦生产率,利能力和NUE的影响.
- 在保护性耕作下评估施加时间 (灌前/灌后).
- 将新战略与农民的传统实践进行比较.
主要方法:
- 实地研究是在印度两个冬季 (2020-21,2021-22) 进行的.
- 八种处理组合,包括常规尿素和叶子纳米尿素.
- 零耕作与米残留的保留,专注于的应用时间.
主要成果:
- 用纳米尿素喷雾 (T5) 在三个分割 (基底和第1/2灌前) 中应用150公斤N/ha显著提高了生长,产量和质量.
- 与农民实践 (T3) 相比,T5处理显示干物质 (7.2%),耕作机 (8.5%) 和谷物产量 (7.8%) 较高.
- 治疗T5产生了最高的毛利率 (2542美元/公) 和净收益 (1279美元/公),效益成本比为2.01,类似于T2.
结论:
- 用单个纳米尿素喷雾在三个分割 (基底,第一/2灌前) 中应用150公斤N/ha,可以改善小麦生长,产量和NUE.
- 这种包括纳米尿素在内的保护农业方法优于传统的农民实践.
- 谷物产量和生理参数 (CCI,NDVI) 之间的正相关性突出显示了植物活力和叶绿素含量的改善.
相关概念视频
Key Elements for Plant Nutrition
18.8K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
18.8K
Plant Breeding and Biotechnology
19.0K
Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
19.0K
Microorganisms in Agriculture and Food industry
43
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
43
Inorganic Nitrogen Assimilation
22
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
22


