Attached ppt from KVK Polyhouse seminar on the subject matter.
Disinfection of Soil.pptx (84.7 KB)
Sun light disinfection of soil: Are we not killing usefull fungii by doing this?
Good point Sri.
This raises the question, which method of soil disinfection is preferable to remove weeds and pest from soil without damaging the useful fungi? Steaming, chemicals or any other method will kill the useful fungi as well.
Dear Zen sir, to eradicate weeds temporarily,one way is to mulch the beds,periodically removing the weeds mannually can do.Mostly in green houses culture of gerbera,it is not troublesome to remove the weeds manually if it is regular practice. As far as to remove the pest from soil is, strengthen by introducing the required ( crop specific in cosultation with organic experts, experienced organic farmers ) ,Isolated and useful bacteria/fungi like Trichoderma viride,Horizonom,Psuedomonos fluorescens,Metarhizhium anisoplae,VAM,Verticillium lecani,paecilomysis etc There are so many useful bacteria/fungi and can collect information on discussions with officials of resp universities. The above said Isolated/Useful bacteria/fungi take care of the pests. Application of jeevamrutha periodically ( exact times to be maintained ) by drenching on the beds. With these we can comfortably take a successful crop and I took for 5 years with gerberas. g.p.rao,farmer
Dear All,
Plse don’t go with recommendations from agri. universities, HTC pune.
Most of the soil sterilizing agents using are damaging lungs/ carcinogenic.
The intention is to erradicate nematode population. (eg:-formaldehyde,Suzone/Basamid)
Best method to erradicating nematodes is - solarization- ie. cover the wet polyhouse
beds with with white poly sheets , with covering borders with soil.
- erradicate nematode adults/ cysts, high humidy ecourage all weed seeds to germinate.
— Never harm the beneficial microbes.
Drench the soils with poly cultures of biopesticides (bye Bye Phorate Furadan )
Add sulphur: Lime : Superphosphate mixture (1: 3: 3) and spread over the bed
& mix well. Along with irrigation water give pseudomonas culture.
Then no need to worry about most of soil born diseases & Pests.
for controlling major sucking & Borers use eco friendly IGR type pest controlling agents.
Proper water management can restrict most of diseases & Pests.
Thank you
Good luck