My extension program includes an education and training program in soil nutrient management for a wide variety of audiences and an active applied research program involving Hawaii farmers and ranchers. Education and training activities include presentations and workshops for high school students, the Statewide Master Gardner Program, farmers, Cooperative Extension personnel, and other professionals linked to agriculture and resource management. Topics include basics in soil science, soil formation and classification, soil fertility, soil quality, nutrient management, sustainable agriculture, and organic agriculture.

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Current Projects

Extension Strategies for Improved Soil Nutrient Management in Hawaii

Objectives: 1) to provide extension agents training in soil fertility and nutrient management for Hawaii's diverse soil conditions. 2) Develop technical materials and tools that improve our extension agents' ability to serve clients in the area of soil fertility.

My applied research program is conducted in partnership with a wide diversity of clients including cabbage and lettuce farmers on the fertile soils of Waimea (Big Island) and Kula (Maui), sweet corn producers on windward Oahu, taro farmers in Hanalei and Kauai ranchers trying to improve forage quality on the highly weathered and nutrient depleted soils of Olomau. By conducting on-farm trials, our clients are more inclined to adopt new farming strategies that enhance the health and productivity of their soils.

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SOIL FERTILITY WORKSHOPS

Improved Fertilizer Recommendations to Meet Production and Environmental Quality Goals for Vegetable Production in Hawaii

Objectives: 1) Characterize soil P levels in the main vegetable producing areas in Hawaii, 2) determine P buffering coefficient for soils in main vegetable producing areas in Hawaii, 3) re-evaluate and modify current P critical levels for soils in vegetable producing areas.

Phosphorus fertilizer management for head cabbage

Phosphorus Fertilizer Management for Romaine Lettuce Grown in Fertile Volcanic Ash Soils of Hawai‘i

Best Management Practices for the Remediation of Former Sugarcane and Pineapple Lands for Sustainable Livestock Production in Hawaii

The goal of this proposed research project is to provide livestock producers, county extension agents, and federal land management personnel with a series of Best Management Practices to efficiently remediate and convert former sugarcane and pineapple lands into sustainable forage production systems.

Soil organic matter management to improve soil and crop quality on intensive vegetable farms in Hawaii

The goal of this research/extension project is to improve soil and crop quality by increasing farmer adoption of soil management practices that include organic inputs.

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