Holloway Gypsum, Soil Amendments & Redevelopment Solutions2022-05-31T12:05:03-07:00

Celebrating 90 Years of Soils-First Solutions

Central California’s trusted partner in soil health since 1932

Holloway 90th Anniversary

Join Our Celebration

Celebrating 90 Years of Soils-First Solutions

Central California’s trusted partner in soil health since 1932

Holloway 90th Anniversary

Join Our Celebration

Our Philosophy

Everything starts with the soil. Our mission at Holloway Ag is to supply the best soil amendments and methods to help soil structure, adjust soil chemistry, and replenish vital nutrients. Our focus on soil health helps our client’s create the best environment for crops to thrive. After all, plants grown in soil account for the vast majority of our food and clothing. Great soil does not happen by accident. By investing in the health and efficiency of your soil, you ensure the best possible environment to create maximum yield from your fields, season after season. At Holloway Ag, maximizing the efficiency of your soil is our business.

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Gypsum 70_75

Our Products

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Our Services

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Resources

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Providing Tools for Growth

Our diverse portfolio of soil amendments means that you will get the exact product for your particular soil need.

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Holloway’s Soil Amendments

Holloway carries a variety of soil amendments and nutrients so that you get the right solution for your field. Many of our soil amendments are certified organic and we take pride in mining and sourcing our products directly. Whether your soil is in need of improved water retention, amelioration of sodium levels, increased organic matter, additional nutrients, or an adjustment to its pH level, the Holloway Ag team has the product to replenish and rejuvenate your soil.

Holloway has 16 different types of soil amendments and nutrients. From various percentages of gypsum and standard blends of gypsum and sulfur, to lime and humic acid, we have a combination soil amendment to treat your particular brand of soil. We also offer micronutrients and both dairy and green waste compost to replenish soil nutrients. Holloway agronomists are also at the ready to analyze your soil report and recommend a custom blend based on the many factors that make up your soil, such as pH levels, natural elements, nutritional density, water retention, and soil type.

Gypsum 70_75

Gypsum

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Crushed Sulfur

Sulfur

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Lime

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Compost

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Humic Acid

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Green Waste Compost

Micronutrients

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Latest From The Blog

90 Years & Still Growing: 1964 E&MJ Ad Showcases Lost Hills Mine

This Clark Equipment ad from Engineering and Mining Journal in November 1964 highlights Holloway’s Lost Hills Mine with a photo of a Michigan Tractor Scraper that scraped 1 million tons of gypsum between 1959 and 1964. Since 1932, Holloway has been the leading supplier of soil amendments to the south Valley, scraping, delivering and spreading more gypsum than any other supplier. Today, as part of an occasional series entitled "90 Years & Still Growing ..." highlighting Holloway and California ag history, we look back at our founder and celebrate the early days of H.M. Holloway and how our 90-year-old company came to be. 

Holloway Celebrates its 90th Anniversary

Long-time Central California-based company Holloway this week is officially celebrating its 90th anniversary in business. Founded in 1932, Holloway will commemorate its 90th anniversary with a customer appreciation event this week, an employee appreciation event later this summer, along with a host of 90th campaigns, giveaways and events that pay tribute to 90 years of business in the agriculture, mining, environmental and logistics industries.

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Testimonials

Watch how one customer saw impressive yields
Watch how one stone fruit grower improved his soil
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MATERIALS DELIVERY

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CUSTOM BLENDING

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SPREADING

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