Increasing Chloropyhll with Fulvic foliar

[guest]

Hi,

I found a Chinese study which concludes Fulvic acid increases the amount of chlorophyll within leaves which are sprayed. I only found this one study regarding fulvic and chlorophyll.

-A suggested application rate is to start at 25-50ppm of fulvic.

BTW, fulvic is known to improve plant cell permeability, does this correlate to leaves absorbing foliar sprays easier? Similar in function to a systemic nutrient transport agent?

[quote]The effect of foliar application of fulvic acid on water use, nutrient uptake and yield in wheat

X Xudan

Abstract

The effect of foliar application of fulvic acid (FA) on water use, nutrient uptake and yield in wheat was studied in pot experiments and in field trials. FA reduced the stomatal conductance of well-watered plants in pots from ~0.80 to ~0.25 cm s-1. The stomatal conductance of control plants fell continuously from ~0.85 m s-1 to almost zero over a 9-day drying cycle. Plants sprayed with FA at the beginning of the cycle maintained a stomatal conductance of ~0.30 cm s-1 for the whole period. Spraying with FA resulted in a higher level of chlorophyll in the leaves and a greater uptake of 32P by the roots. When droughted at ear-development stage, grain yield was depressed by 30%. Spraying with FA increased the yield of droughted plants to 97% of the irrigated controls. Field trials in North China demonstrated that when FA was used to decrease the water stress or the stress imposed by hot, dry winds during ear development, grain yield increased by 7.3-18.0%.
Australian Journal of Agricultural Research 37(4) 343 - 350

Full text doi:10.1071/AR9860343

[c-ray]

my experience with fulvic spraying is that it stimulates (intensifies) other processes already going on in the plant and that it can cause stretching at a certain concentration...maybe it is helping the plant uptake more co2

[guest]

Hey,

> stimulates (intensifies) other processes already going on in the plant

Good info.

> cause stretching at a certain concentration

What quantity (ppm, etc) of fulvic do you use when spraying?

> maybe it is helping the plant uptake more co2

I could see the logic in that hypothesis. In the experiment above the stomatal conductance* of the plants sprayed with FA was reduced much less than the control. This means the stomata more easily allow water vapors to pass in the plants treaded with FA. This result might be correlated to greater stomata permeability in general which would mean greater transpiration and C02 intake.

*Stomatal conductance
A plant property related to the ease with which water vapor escapes from plant leaves through small pores in the leaves know as stomata.


:D

[The Cannarchist]

10 ml/liter every three days in Veg.