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Item Number: PSO500

Rice Hulls (50 lb Bag)

Rice Hulls (50 lb Bag)

A Renewable Resource

This uniquely processed rice hull amendment is a readily renewable resource requiring no mining or land disruption to produce. As so many growers have learned, it is a perfect replacement for perlite in the growing media - providing a less dusty mixing environment, lower basic cost and decomposition over time, while remaining stable during the typical plant production cycle.

  • OMRI listed and WSDA registered for organic production.

  • Extremely lightweight and highly compressed when packaged, it generates less waste and reduces storage requirements, handling and freight.

  • De-compressed, it is 7.5 cu. ft. Its physical size, shape and bulking properties produce optimum air-filled pore space, water-holding capacity and drainage, while its natural color blends with other media components.

  • Uniquely processed to ensure purity, sized, cleaned and subjected to a series of heat treatments that collectively sterilize the rice hulls and render any residual rice kernels, weed seeds or disease pathogens non-viable.

  • Greenhouse-proven, offers environmental, horticultural and economical advantages. Growers who rely on it gain sustainability, reduce input costs and sacrifice nothing in terms of plant quality.

Introduction to Rice Hulls

Rice hulls offer valuable benefits for improving soil structure, particularly in clay soils where soil particles tend to compact, hindering root growth. When incorporated into clay soil, rice hulls help break up compacted layers, creating pathways for plant roots to penetrate and access nutrients and water more easily. Their lightweight and rigid nature contribute to enhanced aeration and drainage, promoting healthier root growth and overall plant vigor in various soil types. Gardeners and farmers can rely on rice hulls to optimize soil conditions and support robust plant development, especially in challenging clay soils.

Rice hulls, also known as rice husks or rice chaff, are a byproduct of the rice milling process. They are the protective outer layer of rice grains and are often discarded as waste. However, rice hulls have gained recognition for their various uses, particularly in agriculture and gardening.

The type of soil plays a crucial role in determining the availability of water and nutrients for plant growth. Soil rich in organic matter and well-draining, such as loamy soil, facilitates the absorption of water and nutrients by plant roots, promoting healthy growth and development. In contrast, compacted or sandy soils may struggle to retain moisture and nutrients, leading to stunted plant growth. By improving soil structure and water retention, organic amendments like compost or peat moss can enhance the soil's ability to absorb water and nutrients, ensuring optimal conditions for plant growth and vitality.

Understanding soil texture through soil testing is essential for assessing moisture content and determining the suitability of the soil surface for plant growth. Different soil textures, such as sandy, loamy, or clayey, have varying abilities to retain moisture, affecting plant hydration and overall health. Conducting regular soil tests helps gardeners gauge the moisture levels and adjust irrigation practices accordingly to maintain optimal conditions for plant growth.

Characteristics of Rice Hulls

Rice hulls are lightweight, rigid, and have a unique composition that makes them valuable in several applications:

  1. Lightweight: Rice hulls are extremely lightweight, which makes them easy to handle and transport. They have a low bulk density, contributing to their utility in various industries.

  2. High Silica Content: Rice hulls contain a significant amount of silica (approximately 15-20%), making them an excellent source of this essential plant nutrient. Silica contributes to the strength and structure of plants.

  3. Low Water Absorption: Rice hulls have low water absorption properties, meaning they do not readily retain moisture. This characteristic is advantageous in some agricultural applications.

  4. Biodegradable: Rice hulls are completely biodegradable, making them an environmentally friendly option for various purposes.

Benefits of Rice Hulls in Agriculture

Rice hulls offer several benefits in agricultural practices, including:

  1. Soil Amendment: Rice hulls can be used as a soil amendment to improve soil structure and aeration. They help break up compacted soils and enhance water drainage, particularly in clayey soils.

  2. Moisture Retention: While rice hulls do not retain moisture themselves, they can be mixed with other organic materials to create a moisture-retentive mulch or soil mix. This can be particularly helpful in preventing soil erosion and reducing water consumption.

  3. Weed Control: A layer of rice hulls can act as a natural weed barrier when applied as mulch. This reduces the need for synthetic weed control methods and minimizes competition for nutrients and moisture among crops.

  4. Slow-release Silica: The high silica content in rice hulls provides a slow-release source of this essential nutrient to plants. Silica enhances plant cell strength, making them more resistant to pests and diseases.

Applications in Horticulture

Rice hulls find applications in horticulture as well:

  1. Potting Mix: Rice hulls can be incorporated into potting mixes to improve drainage and aeration. This is particularly beneficial for plants that prefer well-draining soils, such as succulents and cacti.

  2. Orchid Cultivation: Rice hulls are commonly used as a growing medium for orchids due to their ability to retain moisture while allowing for adequate aeration. This creates a suitable environment for orchid root development.

Other Uses of Rice Hulls

Apart from agriculture and horticulture, rice hulls have additional applications:

  1. Animal Bedding: Rice hulls are used as bedding material for various livestock, such as poultry and horses. They provide a comfortable and sanitary bedding surface while also being easy to clean and dispose of.

  2. Industrial Uses: Rice hulls can be utilized in industrial processes, such as in the production of insulation materials, abrasive products, and even as a component in making building materials like bricks and concrete.

Rice hulls, often considered a waste product, have proven to be a valuable resource in various fields. Their lightweight nature, high silica content, and biodegradability make them versatile for agricultural, horticultural, and industrial applications. Whether improving soil quality, conserving moisture, or serving as a natural weed control method, rice hulls offer numerous benefits to both gardeners and farmers. Additionally, their use as animal bedding and in industrial processes demonstrates their potential to contribute to sustainability and resource efficiency across industries.

For more information, see our companion guide on how to use rice hulls.

Listed for Use in Organic Agriculture by the Organic Materials Review InstituteApproved for Organic Agriculture by the Washington State Department of Agriculture
Quantity Discounts for Rice Hulls (50 lb Bag)
Buy 5 for $35.14 each
Buy 40 for $33.29 each
$36.99
Discount applied. Offer ends soon.

Check Your Zone Compatibility:

Description

This uniquely processed rice hull amendment is a readily renewable resource requiring no mining or land disruption to produce. As so many growers have learned, it is a perfect replacement for perlite in the growing media - providing a less dusty mixing environment, lower basic cost and decomposition over time, while remaining stable during the typical plant production cycle.

  • OMRI listed and WSDA registered for organic production.

  • Extremely lightweight and highly compressed when packaged, it generates less waste and reduces storage requirements, handling and freight.

  • De-compressed, it is 7.5 cu. ft. Its physical size, shape and bulking properties produce optimum air-filled pore space, water-holding capacity and drainage, while its natural color blends with other media components.

  • Uniquely processed to ensure purity, sized, cleaned and subjected to a series of heat treatments that collectively sterilize the rice hulls and render any residual rice kernels, weed seeds or disease pathogens non-viable.

  • Greenhouse-proven, offers environmental, horticultural and economical advantages. Growers who rely on it gain sustainability, reduce input costs and sacrifice nothing in terms of plant quality.

Introduction to Rice Hulls

Rice hulls offer valuable benefits for improving soil structure, particularly in clay soils where soil particles tend to compact, hindering root growth. When incorporated into clay soil, rice hulls help break up compacted layers, creating pathways for plant roots to penetrate and access nutrients and water more easily. Their lightweight and rigid nature contribute to enhanced aeration and drainage, promoting healthier root growth and overall plant vigor in various soil types. Gardeners and farmers can rely on rice hulls to optimize soil conditions and support robust plant development, especially in challenging clay soils.

Rice hulls, also known as rice husks or rice chaff, are a byproduct of the rice milling process. They are the protective outer layer of rice grains and are often discarded as waste. However, rice hulls have gained recognition for their various uses, particularly in agriculture and gardening.

The type of soil plays a crucial role in determining the availability of water and nutrients for plant growth. Soil rich in organic matter and well-draining, such as loamy soil, facilitates the absorption of water and nutrients by plant roots, promoting healthy growth and development. In contrast, compacted or sandy soils may struggle to retain moisture and nutrients, leading to stunted plant growth. By improving soil structure and water retention, organic amendments like compost or peat moss can enhance the soil's ability to absorb water and nutrients, ensuring optimal conditions for plant growth and vitality.

Understanding soil texture through soil testing is essential for assessing moisture content and determining the suitability of the soil surface for plant growth. Different soil textures, such as sandy, loamy, or clayey, have varying abilities to retain moisture, affecting plant hydration and overall health. Conducting regular soil tests helps gardeners gauge the moisture levels and adjust irrigation practices accordingly to maintain optimal conditions for plant growth.

Characteristics of Rice Hulls

Rice hulls are lightweight, rigid, and have a unique composition that makes them valuable in several applications:

  1. Lightweight: Rice hulls are extremely lightweight, which makes them easy to handle and transport. They have a low bulk density, contributing to their utility in various industries.

  2. High Silica Content: Rice hulls contain a significant amount of silica (approximately 15-20%), making them an excellent source of this essential plant nutrient. Silica contributes to the strength and structure of plants.

  3. Low Water Absorption: Rice hulls have low water absorption properties, meaning they do not readily retain moisture. This characteristic is advantageous in some agricultural applications.

  4. Biodegradable: Rice hulls are completely biodegradable, making them an environmentally friendly option for various purposes.

Benefits of Rice Hulls in Agriculture

Rice hulls offer several benefits in agricultural practices, including:

  1. Soil Amendment: Rice hulls can be used as a soil amendment to improve soil structure and aeration. They help break up compacted soils and enhance water drainage, particularly in clayey soils.

  2. Moisture Retention: While rice hulls do not retain moisture themselves, they can be mixed with other organic materials to create a moisture-retentive mulch or soil mix. This can be particularly helpful in preventing soil erosion and reducing water consumption.

  3. Weed Control: A layer of rice hulls can act as a natural weed barrier when applied as mulch. This reduces the need for synthetic weed control methods and minimizes competition for nutrients and moisture among crops.

  4. Slow-release Silica: The high silica content in rice hulls provides a slow-release source of this essential nutrient to plants. Silica enhances plant cell strength, making them more resistant to pests and diseases.

Applications in Horticulture

Rice hulls find applications in horticulture as well:

  1. Potting Mix: Rice hulls can be incorporated into potting mixes to improve drainage and aeration. This is particularly beneficial for plants that prefer well-draining soils, such as succulents and cacti.

  2. Orchid Cultivation: Rice hulls are commonly used as a growing medium for orchids due to their ability to retain moisture while allowing for adequate aeration. This creates a suitable environment for orchid root development.

Other Uses of Rice Hulls

Apart from agriculture and horticulture, rice hulls have additional applications:

  1. Animal Bedding: Rice hulls are used as bedding material for various livestock, such as poultry and horses. They provide a comfortable and sanitary bedding surface while also being easy to clean and dispose of.

  2. Industrial Uses: Rice hulls can be utilized in industrial processes, such as in the production of insulation materials, abrasive products, and even as a component in making building materials like bricks and concrete.

Rice hulls, often considered a waste product, have proven to be a valuable resource in various fields. Their lightweight nature, high silica content, and biodegradability make them versatile for agricultural, horticultural, and industrial applications. Whether improving soil quality, conserving moisture, or serving as a natural weed control method, rice hulls offer numerous benefits to both gardeners and farmers. Additionally, their use as animal bedding and in industrial processes demonstrates their potential to contribute to sustainability and resource efficiency across industries.

For more information, see our companion guide on how to use rice hulls.

Shipping Information

Ships from Northern CA.

Does not qualify for Flat Rate Shipping.

Due to the size of this product, a $5 handling fee will be added to shipping charges.

Shipping Weight: 55.0 lb

Dimensions: 30.0"L x 20.0"W x 11.0"H

Features

  • Biodegradable
  • Improves Water Holding Capacity

Characteristics

Organic Status: Approved for Use in Certified Organic Agriculture
Organic Certifier: OMRI, WSDA

Use Instructions

Useful Information

Guarantee

View full details

Customer Reviews

Based on 10 reviews
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(9)
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D
Doug
Rice Hulls

The rice hulls were packaged well enough to survive a hungry bear carrying off the 50# bag. Fortunately I was able to track the rice hull trail and found the bag about 50 meters away. Rice hulls are not proper food for a bear. I am looking forward to using rice hulls instead of perlite!

T
Tony
good product

very happy with the purchase. highly recommended!

M
MEP
good stuff

Using rice hulls to suppress the weeds in my outdoor container plants. Also using in pathways of new garden area. Cheap for the volume of material. Looks tidier than straw in the 1 gallon pots.

R
RJB
Rice Hulls

Excellent quality, it is exactly what I wanted.

Richard Byrd

C
Charlton
I trust products from this website 100 percent.

I have not used this product as of yet since I'm waiting for Spring to arrive. It's right around the corner for us here and arrives fairly early in this part of west Texas on the Rio Grande. We've already had sightings of the Texas Bluebonnets and it's only the first week of January. The Bluebonnets plants have been spotted growing so the blooms are only weeks away. Even now when it seems the cold will hang around forever, the bluebonnets let us know that the warmth of Spring is not too far off now for us.

I have ordered composted manure that is mixed with the rice hulls and it's another product that I rely on as well. So, the rice hulls were something I was more than ready to try. Our soils here are almost 100 percent bentonite clay so all of my crops are in containers outside and inside. I make my soils from peat moss, Cherry Stone #2, a good potting soil either purchased here or elsewhere that is not mainly chunks of bark and sticks, the rice hulls, and composted manure. I order my ingredients from here because I can trust the quality. Thank you again.

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