Tag Archives: soil microbes

Microbe Plant Interactions

Microbe Plant Interactions

Microbe plant interactions are an ongoing, every changing encounter. This is a microscopic, symbiotic relationship unseen by the naked eye.

Here’s a great quote from Nature the international weekly journal of science.

 

Plant—microbe encounters can be friendly or hostile. Densely colonized soil contains beneficial mycorrhizal fungi and rhizobia, which associate with roots and provide plants with mineral nutrients and fixed nitrogen, respectively, in exchange for carbon.

For this post, we’ll only talk about the friendly interactions between microbes and plants. We’ll also include bacteria and the microscopic fungi, Trichoderma, into the discussion.

Types of Microbe Plant InteractionsMicrobe Plant Interactions

There are too many types on microbe plant friendly interactions to completely discuss here, but we’ll talk about a few of the main ones.

  • Carbon root exudate by plants
  • Nitrogen fixation by bacteria
  • Phosphate solubilization by bacteria and fungi
  • Auxin and other growth hormone production by bacteria and fungi

Plant exudate, or excrete, carbon compounds into  the soil. These compounds serve to attract a variety of microorganisms. The microorganisms need the carbon for cellular components and to reproduce.

Nitrogen Fixation

Nitrogen is needed by plants for both protein synthesis and for DNA and RNA synthesis. Atmospheric nitrogen is very abundant. The problem is that atmospheric nitrogen is not available to plants. Many bacteria, including Paenibacillus, are capable of taking atmospheric Nitrogen and incorporating the Nitrogen into their cell. This process is called Nitrogen fixation. By use of this process, atmospheric nitrogen, otherwise unavailable to the plant, is now available. Nitrogen fixing bacteria are an integral part of the Nitrogen cycle.

Phosphate Solubilization

Phosphate  is required by plant cells for both DNA synthesis and energy transport. The important chemicals ATP and ADP both require phosphate. Both bacteria and Trichoderma solubilize phosphate and make it available to the plant. The phosphate cycle, while not as well know as the nitrogen or carbon cycles, is vital to the plants survival.

Auxin Production

Auxins are growth hormones that stimulate plant growth, particularly root growth. More auxins cause plants to have healthier, better developed root systems. Better root systems, of course, means a healthier, more productive plant. Several bacterial species and Trichoderma fungi produce auxins and a myriad of other plant growth hormones.

Microbe plant interactions are diverse and complex. It is safe to say, that without beneficial soil microbes, plants would have difficulty growing to their full potential.

Custom Biologicals manufactures a wide variety of beneficial soil microbial products. Contact Custom for more information about how to put these powerful products to work for you.

 

 

Soil Quality using Management Practices

Soil Quality using Management Practices

Soil quality is the most important factor for long term agricultural productivity . A good soil manager will monitor the organic content of the soil, water holding capacity, and a host of other soil quality parameters that are discussed in detail in the article below. 

Soil quality also relies on the diversity of beneficial soil microorganisms.

Wise management practices could improve soil quality

 

Surface soil produces our food and is vital for life. This precious resource often is called “skin of the Earth” and, just as skin, it is important to protect and maintain its quality.

Soil quality is the inherent capacity of a particular soil to support human health and habitation; maintain or enhance air and water quality; and, most important, sustain plant and animal productivity.

From an agricultural standpoint, soil quality is vital for improving long-term agricultural productivity and maximizing profits through sustainable productivity.

It is important for soil both to function optimally for current needs and remain healthy for future use. Soil organic matter, tillage, soil compaction, soil structure, depth of soil, water-holding capacity, electrical conductivity, pH, ground cover, microbial biodiversity, carbon-to-nitrogen ratio and nutrient management are some of the important parameters of soil quality.

Improving and maintaining soil organic matter content is the most important quality parameter. Increasing organic matter improves soil structure as well as water- and nutrient-holding capacity, supports soil microbes, and protects soil from erosion and compaction. Organic matter can be improved by using no-till or minimum till methods, growing cover crops, leaving crop residues and using rotations with crops that balance optimal water and nutrient management practices.

Using reduced tillage practices will protect the soil surface, which decreases soil erosion and soil compaction, and decreases the loss of organic matter. Reduction in tillage also decreases the potential for destroying soil structure. Soil compaction can be caused by using heavy equipment on the surface when the soil is wet. Compaction will reduce the amount of air, water and pore space for growth of both soil microbes and plant roots. Soil compaction can be reduced by minimizing equipment use when the ground is wet and combining multiple farm tasks, such as applying both herbicides and fertilizer in one trip.

Growing cover crops and leaving residue from previous crops is the best way to reduce soil erosion by wind and water. Ground cover can be increased by growing perennial crops such as grasses in a pasture situation. Ground cover will improve water availability, but care should be taken to manage it properly to prevent disease outbreak.

Soil quality also relies on microbial organisms. Diversity in soil microbes may be helpful in controlling pest populations, diseases and weeds. Biodiversity can be achieved by increasing long-term crop rotations, since each plant in rotation contributes to unique soil structure and plant residue.

Understanding how to improve soil quality is aided by knowledge of the carbon-to-nitrogen (C:N) ratio for managing cover crops and nutrient cycling.

The C:N ratio is the amount of carbon to the amount of nitrogen in a residue or other organic material applied to soil. If material with a higher C:N ratio residue is applied, it takes longer to decompose and may immobilize inorganic fertilizers that are applied. This problem can be reduced by growing a low C:N ratio crop (e.g., vetch or other legumes) in rotation with a high C:N ratio crop (e.g., wheat straw).

Finally, efficient nutrient management is important in maintaining soil quality. Test your soils regularly and make sure that you store all your records. Examining records over time will tell whether the management practices that were followed increased or depleted soil nutrients. Too much fertilizer or manure may cause groundwater contamination or may run off and enter water bodies and degrade water quality. Application of nutrients based on a soil test will alleviate this problem.

What works on one farm may not work on another. Adjust your management plan by observing changes in soil quality on your farm. Wise management decisions will improve the overall quality of the soil. Being proactive, rather than reactive, will make you a better steward of this limited resource.

 

 

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Bio Soil for Plants. Biofertilizers for Plants.

Bio Soil for Plants

Bio Soil refers to the idea that the soil is alive with biological activity, living soil. Bio soils are in fact biological organisms, like beneficial soil bacteria or beneficial soil Trichoderma.

Bacillus megaterium and B. subtilis are bacteria that are useful for plants. Bacteria for plants can be either beneficial for the plant or detrimental to the plant. In this post we’ll talk about beneficial bacteria for plants, specifically beneficial soil bacteria.

It is well known that beneficial plant bacteria play a critical role in supporting and increasing plant growth and plant health. Because of their ability to confer benefits to the plant, it is important that beneficial bacteria adequately colonize the plant’s environment, specifically the plant root system.

Sometimes called Plant Growth Promoting Bacteria, or PGPB, bacteria are a vital link in the food web for plants.

Bio Soil

Custom B5 Contains Bacillus megaterium

Here’s a brief introduction to two key beneficial plant bacteria, Bacillus subtilis and Bacillus megaterium.

Bacillus subtilis

Bacillus subtilis, or B. sub, is a key beneficial plant bacteria. B. subtilis plays a role in replenishing soil nutrients through both the carbon cycle and the nitrogen cycle. To aid the carbon cycle B. subtilis degrades thatch, pectin, cellulose and other organic materials. B. subtilis forms biofilms which are dense populations of organisms. These biofilms provides the plants with preventive colonization, sometimes called competitive inhibition. While beyond the scope of this post, preventative colonization essentially prohibits other microorganisms from forming colonies around the plant roots.

Bacillus megaterium

Another key beneficial plant bacteria is Bacillus megaterium. In addition to some of the benefits conferred by B. subtilis, B. megaterium is known to be a phosphate solubilizing bacteria (PSB). PSBs have several important benefits:

  • They make phosphorus more available to the plant
  • Reduce the need for traditional fertilizer applications
  • Reduce Environmental problems downstream
  • Promote sustainable agriculture.

Beneficial Plant Bacteria – Bio Soil

The use of beneficial plant bacteria, like those above, has a very positive effect on plant growth, root mass, and crop yields. Specifically, beneficial plant bacteria produce plants with better growth response, biomass yield, and nutrient content when compared to plants without these important beneficial soil bacteria.

Custom Biologicals manufactures a wide variety of microbial products including products that contain beneficial plant bacteria and beneficial soil Trichoderma. Contact Custom at (561) 797-3008 or via email at Bill@Custombio.biz.

Bio Soil Enhancers refer to the idea of using biological products or biofertilizers to the soil. Creating a biologicals active soil.

 

 

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Biological Soil Amendments

buy Trichoderma

Biological Soil Amendments for Enhanced Soil Productivity

Biological Soil Amendments

Custom B5 and Custom GP biological soil amendments are scientifically formulated to restore soil productivity an promote plant growth. The are perfect for food crops, turf, trees, and ornamental flowers and shrubs. Custom B5 and Custom GP are equally effective when soil amendmentsused by commercial farms and backyard gardeners.

It is well known that fertile soils contain a large number of beneficial microorganisms. These microbes process fertilizers (N,P,K) making essential nutrients and minerals available to plants. They also digest thatch and other organic matter, releasing additional nutrients into the soil.

Pesticides, insecticides, herbicides, other chemicals, and over farming can greatly diminish a soil’s natural population of beneficial microbes. This reduces the soil’s ability to support turf, crops, and other vegetation.

Custom B5 and Custom GP biological soil amendments improve conditions by restoring a soil’s natural microbial population. Their use will increase nutrient availability, enhance root mass development and promote vigorous plant growth.

Soil Amendments of Custom Biologicals

Custom GP – is a blend of 4 Trichoderma beneficial fungi

Custom B5 – is a blend of 5 beneficial Bacillus bacteria.

Custom GP and Custom B5 can be used independently or combined for maximum benefit. Both biological soil amendments are OMRI listed.

Regular use of Custom B5 and Custom GP will:

  • Create a more fertile soil by restoring natural microbial populations. 
  • Promotes vigorous plant growth leading to a significant increase in crop yield
  • Maximizes the benefits of your current fertilizer program by making nutrients more readily available
  • Provides Beneficial Soil Microbes
  • Improves Soil productivity
  • Promotes Plant Growth
  • All Natural, Safe Formulations
  • OMRI listed
  • Increases root mass – increases plant growth – increases crop yield

Custom GP and Custom B5 are biological soil amendments manufacture and distributed by Custom Biologicals. Custom manufactures a wide variety of biological products for use in the agricultural industry. Distributor/Dealer inquiries are welcome

Contact Custom Biologicals at (561) 797-3008 or via email at Email Bill