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HI Anil
Anil Kaushik wrote: Brent Thank you for the comprehensive reply. At last I got the right answer! (Theo also said so and I think he was absolutely correct) Also could you please tell if there are parameters regarding the porosity of Bonsai mixture? Has anybody conducted research or study on *porosity*. If you pour water over gravel, the water will drain out in seconds. And if you do the same on fine grit say with 1 to 2 mm sized particles, it will still drain out quickly. Likewise it will pass out quickly through fine sand (dust free) or may take a little longer. How porous the Bonsai potting mix should be for different climatic conditions? If you have some information please share. Someone few montha ago said something right I do not remember his name but this person was living in very hot and dry places and he said that he could grow bonsai in totally different soils than the ones adviced in northern countries , so soils has to be adapetd to the climate un first with regard to teh kind of tree we are repotting I proceed as follows to see the time of drying out I take my hard material that is lava or pouzzolana of stone grit washed from dusts and akadama well sifted I select for my trees thata re genereally 70 cm 3 ft tall 3 to 5 mm diameter and must be really coarse this is why lava is ok I add some home made soil that changes from plant to plant for maples I add 25 % for pines 10 % mix well and also according to his phase of growth and age ( but so 10 to 20 % of home made compost and the rest in equal parts akadama and lava or just lava .. I can add sequoia bark cut in dices , is like a sponge.. and make the quantitiy of one pound 500 grs put it in bonsai container sink into water very well and than put in the location as if it was a bonsai pot and check everyday the umidity .. this mix opften takes one week 8-9 days to dry well in may june sunny weather in switzerland .. if it is windy takes less with a plant inside takes a little less so you can be almost be sure that that mix with a bonsai inside will stay humid 6 days with no problem and 1 -2 more days without needing watering if is a pine ( of course it also depends upon the pot size if deep or flat if small or large ) for mame or shohim teh small quantity of soil dries within hours no matter how damp might be Tested that I change the components according my needs thin sands retains water in the very beginning but dries out quickly coarse sand makes the water flow away very quickly peat if dries too much has a difficulty to get wet again and clogs lava retains inside water and release t slowly almost like akadama but does not disgregate warms up quickly in the sun and roots grow well I did that when left home for one week and I had no problema with my trees -- MSN messanger / or ICQ 25 666 169 4 Private Mail : «»«»«» Just for today... don't worry .....be happy «»«»«» |
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