The regular spraying of fertilizerson the mango tree has a big effect on its fruit bearing, especiallythe application of fertilizer with potassium, nitrogen andcalcium. It is on these three depends much so as to flowerand bear good fruits. The more fertilizers, the more fruitsthere will be.

This was found out in fourand a half (4 1/2) years of research at PCARRD on the mango'sflowering and fruit bearing with the aid chemical fertilizers.

* PhilippineCouncil for Agricultural Research Development (DOST)

From: Completed R &D Projects

STII (ISN-225)

Salt peter for mangoflowering

Potassium Nitrate (KNO3),induces flowering of the mango tree even out of season. Thisis effective if the buds are plentiful and the leaves arebrittle and dark green.

Formula for spraying:

10 grams potassium nitrate for every liter of water

Or 200 grams (KNO3) for every can (kerosene can) water

The tree will bear fruitfrom the 7-14 days spraying. If no flowers come, spray again.

If rains after spraying,or the tree does not flower after 15 days, repeat the spraying.

If the flowers are abundantbut damaged by the leaf hoppers, spray again after 47-54 days.

Potassium nitrate that isnot pure is dangerous to the plant. Avoid using this if thereis no assurance that the KNO3 is pure.

It is also necessary to getpermission from the authorities to use this fertilizer. Ifpermission is not given, use any of the commercial flowerinducers like:

Agriblum, Rebloom,Manovit, Mangotone, Miracle blum, Flower Set.

From: PCARRD FARMNEWSAPRIL 15, 1980

FLOWERING OF PINEAPPLEAND OTHER CROP

According to studies at theUP Los Banos, flowering can be induced in some crop even outseason, with the help of calcium carbide . this can be doneon papaya, bananas, coffee, coffee and tomatoes.

Procedure

On pineapple 11 months old

1. Pound calcium carbide

2. Put a grain of pound calciumcarbide in the middle of the pineapple crown

3. Pour water into it while

4. Gently pushing the carbideto make it reach the youngest leaf or bud

The plant will bear flower with a month. Commercial flower inducers are available at the market. Inquire from your agriculturist.

From: PCARRD MonitorApril 1983

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