PURPOSE: To effectively modify devastated or desertified soil into plant-viable arable land by culture of dryness-resistant soil algae such as green-blue algae, green algae, yellow-green algae or diatoms and by applying the cultured product on devastated or desertified soil.
CONSTITUTION: Firstly, a single and/or plural species of at least one kind of dryness-resistant soil algae selected from green-blue algae, green algae, yellow- green algae, diatoms and red algae is put to liquid culture in a medium pref. incorporated with trace element(s) essential for the proliferation and function development for the soil algae (e.g. molybdenum, magnesium and/or copper). Then, the resultant culture solution, slurry after solid/liquid separation, or dried microbes is applied on devastated or desertified soil to modify the soil. The soil algae can be protected from salt injury by application of the cultured soil algae together with a biodegradable highly waterabsorbing resin (e.g. a polymer from carboxymethylcellulose and sodium polyacrylate).
TATEZAWA HIDETAKA
ADACHI TADASHI
TAKIZAWA ETSUKO
EBARA CORP
EBARA INFILCO
| US3969844A | 1976-07-20 |