Tag: Soil Health
Remote Sensing and Soil Moisture Sensors for Irrigation Management in Avocado Orchards: A Practical Approach for Water Stress Assessment in Remote Agricultural Areas
Water scarcity significantly challenges agricultural systems worldwide, especially in tropical areas such as the Dominican Republic. This study explores integrating satellite-based remote sensing technologies and field-based soil moisture sensors to assess water stress and optimize irrigation management in avocado orchards in Puerto Escondido, Dominican Republic. Using multispectral imagery from the Landsat 8 and 9 satellites, key vegetation indices (NDVI and SAVI) and NDWI, a water-related index
Infrared thermography as a tool for measuring water stress index in avocado cultivars ( Persea Americana M.)
Avocado cultivation is susceptible to water stress during the flowering stage and early fruit growth. This stress can cause premature fruit drop and exacerbate alternate bearing. Objective. To determine the crop water stress index (CWSI) in three avocado cultivars (Hass, Fuerte, and Zutano) under different irrigation conditions using infrared thermography. Materials and methods. The study was conducted in the fall of 2023 at the Canaán Agricultural Experiment Station, Ayacucho, Peru. One hundred
Production systems of Hass avocado among small-scale Colombian farmers: assessment and strategies for strengthening sustainable integration into export markets
Introduction: Colombia’s Hass avocado sector has grown rapidly, yet smallholders face unequal access to technology, certification, and export channels. Understanding the determinants of sustainable practice adoption is key to inclusive competitiveness and compliance with international standards.Methods: We analyzed a cross-sectional survey of n = 3,867 small-scale Hass avocado producers across 18 departments (2023–2024). Descriptive statistics and correlation analysis were followed by four
Avocado drought stress alleviation through different soil amendments
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Under the uncertain scenario of water availability for irrigation, plants are often exposed to drought periods, which can negatively impact their vegetative growth and yield potential. To address this issue, various soil amendments including inorganic, organic, and biological treatments, have been investigated as solutions for mitigating water stress. However, comparative studies of different amendments are lacking. The aim of this study was to assess the efficacy of various soil amendments
Under the uncertain scenario of water availability for irrigation, plants are often exposed to drought periods, which can negatively impact their vegetative growth and yield potential. To address this issue, various soil amendments including inorganic, organic, and biological treatments, have been investigated as solutions for mitigating water stress. However, comparative studies of different amendments are lacking. The aim of this study was to assess the efficacy of various soil amendments
Water Relations and Physiological Response to Water Deficit of ‘Hass’ Avocado Grafted on Two Rootstocks Tolerant to R. necatrix
Avocado (Persea americana Mill.) cultivation has spread to many countries from the tropics to the Mediterranean region, where avocado crops commonly face water shortages and diseases, such as white root rot (WRR) caused by Rosellinia necatrix. The use of drought- and WRR-tolerant rootstocks represents a potential solution to these constraints. In this research, water relations and the morpho-physiological response of avocado ‘Hass’ grafted on two selections of R. necatrix-tolerant rootstocks
Comparative Analysis of Water Stress Regimes in Avocado Plants during the Early Development Stage
The avocado cv. Hass requires a suitable rootstock for optimal development under water stress. This study evaluated the performance of two avocado rootstocks (ANRR88 and ANGI52) grafted onto cv. Hass under four water stress conditions, 50% and 25% deficit, and 50% and 25% excess during the nursery stage. Plant height, leaf area (LA), dry matter (DM), and Carbon (OC) content in the roots, stems, and leaves were measured. Root traits were evaluated using digital imaging, and three vegetation