Javascript is required
Search
Volume 10, Issue 3, 2024
Open Access
Research article
Farmers’ Perceptions of Saline-Sodic Soil Impacts on Rice Production in Navotas, Balayan, Batangas, Philippines
june spencer a. cera ,
josefina t. dizon ,
jocelyn d. labios ,
marcial s. buladaco ii
|
Available online: 09-29-2024

Abstract

Full Text|PDF|XML

Soil salinization is a critical global issue that undermines agricultural productivity, threatens food security, and compromises the sustainability of farming systems. In the coastal region of Navotas, Balayan, Batangas, Philippines, the increasing salinization of irrigated rice farmlands due to saline-sodic soils has become a pressing concern. The understanding of farmers' perceptions regarding the risks associated with soil salinity, as well as their insights into the causes, consequences, and coping mechanisms, remains inadequately explored. This gap in knowledge may hinder the development of effective countermeasures and appropriate policy interventions. In this study, farmers' perceptions of saline-sodic soils were assessed through Key Informant Interviews (KIIs) and Focus Group Discussions (FGDs), which were analysed using thematic analysis and Causal Loop Diagrams (CLDs). Saltwater intrusion was consistently identified as the primary cause of soil salinization, with subsequent reductions in rice yields ranging from 60% to 100%, depending on the growth stage of the crop. The most vulnerable periods were identified as June to August, particularly during the vegetative and flowering stages of rice. Farmers reported coping strategies such as irrigation with freshwater and the cultivation of salt-tolerant rice varieties; however, challenges related to delayed access to freshwater and seeds were frequently mentioned. The expansion of saline-sodic areas was identified as the most significant threat to rice production, with the condition of saline-sodic soils in lowland rice paddies increasingly viewed as a worsening problem. These findings underscore the severe impact of saline-sodic soils on both agricultural productivity and farmers' livelihoods, providing valuable insights that can inform the development of tailored management strategies and mitigation measures.

Open Access
Research article
Localized Biopesticide Application Using UAVs for the Control of Migratory Locusts in Kazakhstan
valerij аzhbenov ,
daulet shamuratov ,
zhan niyazbekov ,
almat dinassilov ,
semby arystangulov ,
kurmet baibussenov ,
nursultan bashkarayev ,
aitugan zhumagaliyev
|
Available online: 09-29-2024

Abstract

Full Text|PDF|XML

The migratory locust has become a principal threat to agricultural production in Kazakhstan, exacerbating risks posed by drought, fires, and other natural disasters. The widespread and persistent use of chemical pesticides, often referred to as "chemical press" tactics, has been the conventional approach to locust control. However, such methods are associated with escalating costs, environmental contamination, and the development of pesticide resistance. In response, alternative strategies that focus on preventive control and localized treatment have been explored. This approach aims to mitigate the negative ecological impacts of indiscriminate pesticide application by targeting locust populations with biological control agents and low-toxicity plant protection products in identified foci. This study evaluates the use of unmanned aerial vehicles (UAVs) for the precision application of biopesticides in Kazakhstan's locust-affected regions. Orthophotographic maps generated from UAV imagery were employed to detect locust presence based on indirect diagnostic indicators. These maps facilitated the identification of locust aggregations, which were subsequently treated with biologically based pest management solutions. The effectiveness of UAV-based localized treatments was assessed, demonstrating significant control over locust populations in focal areas, with minimal environmental impact. The results suggest that UAV technology, combined with targeted biological treatments, offers a promising alternative to traditional chemical methods, potentially reducing pesticide resistance and ecological harm while maintaining effective pest control. This approach aligns with sustainable agricultural practices and enhances the efficiency of pest management strategies in locust-prone regions.

- no more data -