im using BMO grow guano for fert with worm castings. the NPK works out to around 10-3-2. i water once a week. one week food next BMO plant tonic. i have been trying to get the ratio's right and i think im finally getting it. but my ladies still look a lil mal-nurished. old leaves yellow and crust up eventually. i am wondering if there could be a hole in my shedule or maybe im still not givin em enuf N. anything else you organic guru's would add for a little lovin here and there or is my BMO diet good enuf and maybe i should just up the feeding a bit? i dont have a ppm meter so i just give em a quart per P mixed at the rate BMO suggests.
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McLovin4:20..... Every strain of Mary is a bit different, some are hungry beasts others eat like super models.
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You should mix up your guano tea and give each girl - one quart for each gallon of soil in your container. If you are growing in two gallon pots, give them 2 quarts of tea each feeding. Up to one gallon max for plants growing in 5 gallon buckets or in the ground.
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If you are mixing 2 tablespoons per gallon & feeding correctly (volume wise). Add one more tablespoon next time you make tea. Keep adding upwards until the yellowing stops.
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Also check you soil pH to ensure it's not too low or too high. In soil growing, soil below 5.8 or above 6.8 pH - will lock out nutes and stunt Mary's growth.
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Overwatering will also cause yellowing & will promote bad bacterial growth. It's better to water heavy once every 4 to 7 days, instead of watering daily or every other day.
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Unless your pots are drying out to fast - which means temps need to come down, to reduce water loss. Rapid water loss through the pores (stoma) of your leaves - will reduce the effectiveness of any fertilizer. Soil should be moist, not wet, temps should be mild - not above 75 or below 60. Humidity for veg growth should be 50 to 75 percent for best plant health in this stage of growth. If any of these things are out of range, you need to dail them back in.
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Hope this helps...
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