Friday, December 04, 2009

Synthetic Soil

In soils wherein synthetic types of microorganisms, such as photosynthetic bacteria, algae, and nitrogen-fixing bacteria gain predominance, water is stable and the soil is fertile even when small amounts of organic matter is manured.  Fusarium occurrence has a low percentage, and there are frequent cases in which this type of soil is linked to bacteria-cleansing types of soil.  Gas emissions in paddy fields is restrained from being given off.

In cases wherein this synthetic soil type is combined with the fermentative type of soil, then this is the most ideal soil and is referred to as "fermentative and synthetic type" of soil.

Quoted From:   Agricultural Utilization Of Microorganisms For Environmental Conservation.  D.r Teruo Higa. pg 18.

Zymogenic Soils

Zymogenic Soils are soils where fermentative microorganisms like lactic acid bacteria, yeast, etc. predominate, a fragrant smell is given off and Aspergillus frequently grows when living organic matter is manured.  Fusarium is below 5% with a high capability of forming water-resistant crumbs, the soil expands and becomes soft, and solubility of inorganic nutrients is hastened.  Physiologically activated substances such as amino acids, polysaccharides, vitamins, and others in the soil increase, and the growth of crops is hastened.  Likewise, methane in paddy fields is restrained from emission.

From:   Agricultural Utilization Of Microorganisms For Environmental Conservation.  D.r Teruo Higa.  Pp 17-18.

Wednesday, December 02, 2009

Disease-suppressive Soils

Disease-suppressive soils are soils with lots of microorganisms sythesizing antibacterial substances, as well as having no insect occurrence, referred to as "bacteria-cleansing type of soils".  Also, soil with less than 5% Fusarium and have very active Penicillium, Trichoderma, and Streptomyces, and the appearance of insects is scarce.  There is less odor even though living organic matter with high contects of nitrogen are manured and it smells like mountain topsoil.  Crumb formation in the soil is relatively hastened and water permeability is improved.  Harvest is somewhat less although diseases are not observed.  However, when the synthetic type of soil is combined with this type of soil, high productivity is achieved.

From:  Agricultural Utilization Of Microorganisms For Environmental Conservation.  D.r Teruo Higa.   page 17.

Tuesday, December 01, 2009

Disease-inducing Soils

Disease-inducing soils are soils where the percentage of fusarium, with filamentous bacteria, in the soil is high (over 15% to 20%).  When living organisms with a high content of nitrogen applied as manure, odors are given off, maggots appear and a variety of harmful insects swarm.  Since insects frequently appear, manure application with living organisms become harmful.  More than 90% of soils today comprice the putrescent type; inorganic nutrients become insoluble, the soil is hard and physically poor.  In rice fields, methane gas emission is high.

From:  Agricultural Utilization Of Microorganisms For Environmental Conservation.  D.r Teruo Higa.  Pg 17.
 
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