Seed Health Management for Better Productivity - Govind Ballabh ...

(Seed Health Management for Better Productivity)respectively. Leave a space of atleast 1 meter between stacks or stack and wall and 1.5 meter betweenstack and roof.D. Storage of grain After filling the seed, never keep the structure open for longer period as it will facilitateinfestation and entry of moisture. Inspect the seed from time to time and adopt counter measures as per requirements. As the chances of insect infestation and deterioration due to moisture are very high duringrainy season, special attention is needed during this period. If there is any infestation or entry of water and increase in moisture in seed it should bechecked immediately. If any stored grain insect or any other sign of infestation is noticed during storage period,fumigate the grain immediately. In fumigation phosphin is used under airtight condition to kill the insects.o Aluminium phosphide (ALP) can be used on all type of grain, but only undertechnical supervision.o It is recommended only when relative humidity is above 30 per cent and storagestructure is completely airtight.o It should never be used in living room.o ALP 56% 3g tablet 1-2 tablet per tonne or 150 g/100 m3 (Grainfumigation)o ALP 56% 3g tablet 150 g/1000 m3 (Empty godown and shed)o ALP 15% 12g tablet 1 tablet per tone or 600 g / 100 m3 (Grain fumigation)o ALP 56%(F)10g bag 1bag/5 qtl grain(Grain fumigation)o ALP 56%(F)34g bag 1bag/15 qtl grain(Grain fumigation) The minimum exposure time depends on the temperature, the relative humidity and theformulation used, and on whether there is any resistance against phosphine. Under normal condition exposure period of 5 days is sufficient. With a relative humidity of below 60 % up to 6 days and more In case of resistance: at least 3 days more in each case Fumigation is ineffective if the relative humidity is below 30 %. When mites are present, a minimum exposure period of 10 days is required.- 171 -