Agronomic performance and remote sensing assessment of organic and mineral fertilization in rice fields

Frontiers in Plant Science

Plant Science

Andrea Vitali¹  María José Sánchez-Torres²  Carlos Ortiz³  Gemma Murillo³  Núria Tomàs⁴  Mar Català-Forner⁴  Karen Marti-Jerez⁴  Marta S. Lopes⁵ 

[1] Ente Nazionale Risi, Rice Research Centre, Castello d’Agogna, Italy;Global Change Unit, Image Processing Laboratory, University of Valencia, Paterna, Valencia, Spain;Ministry of Climate Action, Food and Rural Agenda, Lleida, Spain;Sustainable Field Crops, Institute of Agrifood Research and Technology, Amposta, Spain;Sustainable Field Crops, Institute of Agrifood Research and Technology, Lleida, Spain;

关键词: rice;    nitrogen;    nutritional deficiency;    remote sensing;    Sentinel-2;    organic fertilization;    precision agriculture;   

DOI  :  10.3389/fpls.2023.1230012

 received in 2023-05-30, accepted in 2023-09-15,  发布年份 2023

来源: Frontiers

【 摘 要 】

IntroductionRice heavily relies on nitrogen fertilizers, posing environmental, resource, and geopolitical challenges. This study explores sustainable alternatives like animal manure and remote sensing for resource-efficient rice cultivation. It aims to assess the long-term impact of organic fertilization and remote sensing monitoring on agronomic traits, yield, and nutrition.MethodsA six-year experiment in rice fields evaluated fertilization strategies, including pig slurry (PS) and chicken manure (CM) with mineral fertilizers (MIN), MIN-only, and zero-fertilization. Traits, yield, spectral responses, and nutrient content were measured. Sentinel-2 remote sensing tracked crop development.ResultsCost-effective organic fertilizers (PS and CM) caused a 13% and 15% yield reduction but still doubled zero-fertilization yield. PS reduced nitrogen leaching. Heavy metals in rice grains were present at safe amounts. Organic-fertilized crops showed nitrogen deficiency at the late vegetative stages, affecting yield. Sentinel-2 detected nutrient deficiencies through NDVI.DiscussionOrganic fertilizers, especially PS, reduce nitrogen loss, benefiting the environment. However, they come with yield trade-offs and nutrient management challenges that can be managed and balanced with reduced additional mineral applications. Sentinel-2 remote sensing helps manage nutrient deficiencies. In summary, this research favors cost-effective organic fertilizers with improved nutrient management for sustainable rice production.

【 授权许可】

Unknown   
Copyright © 2023 Marti-Jerez, Català-Forner, Tomàs, Murillo, Ortiz, Sánchez-Torres, Vitali and Lopes