How To Properly Flush Cannabis Plants [LVlmb6QofqO]

How To Properly Flush Cannabis Plants [LVlmb6QofqO]

| 1h 28m 28s | Video has closed captioning.

How To Properly Flush Cannabis Plants Professor DeBacco Thesis Stemeroff, J. (2017). Irrigation management strategies for medical cannabis in controlled environments (Doctoral dissertation). Flushing in General Typically at the end of the flowering cycle prior to harvest the root zone of cannabis plants will be watered with plain water that does not contain any additives such as fertilizer. Fertigated water is water that contains nutrients. Depending on the substrate the plant is being grown in will dictate the duration of the flushing period. Flushing Specifics in Study Flushing occurred over the last two weeks of production when the nutrient solution was replaced with clear water during routine irrigation events. Another flushing method was to apply an additional 10L of water without any fertilizer to the plant over two irrigation events at the start of the two-week period of clear water irrigation. Study Treatments 1)Control Treatment with 10L initial flush completed twice and non-fertigated water until harvest 2)Control Treatment without 10L initial flush and non-fertigated water until harvest 3)Mild-Stress Treatment with non-fertigated water until harvest 4)Mild-Stress Treatment with fertigated water until harvest 5)Moderate-Stress Treatment with non-fertigated water until harvest 6)Moderate-Stress Treatment with fertigated water until harvest Bud Dry Yield for Flower Note that there was determined to be no significant difference in the following… Whole Plant Dry Yield for Flower Cycle 1 Bud Dry Yield for Flower Cycle 3 THC Percent by Mass for Flower Note that there was determined to be no significant difference in the following… THC Percent by Mass for Flower Cycle 2 THC Percentage by Mass for Flower Cycle 3 Elemental Analysis of Buds for Three Flowering Cycles Flower cycle 1 elemental analysis of bud after flushing. Shows the percent concentration by mass of the nutrients within the dried bud. Error bars represent the standard error (+/-SE). There are no significant differences between any of the treatments analyzed using ANOVA at significance of p less than 0.05. Water Reduction from Treatments Moderate-stress treatment was able to reduce water use by over 45% Mild-stress treatment was able to reduce use by 25%. Removing the 10L initial flush was able to reduce water use by 22.9%. General Summary By reducing the irrigation frequency there were large reductions in water use with little impact on overall yield and THC concentrations. Removing the two-time 10L flush reduced water use in the same treatment without the two-time 10L flush by 22.9% with the non-significant impacts on final dry yield and THC concentrations Another option for reducing water use is to examine flushing practices. A significant reduction in water use for irrigation will lead to a significant reduction in humidity with which the air handling system must contend. Flushing Nutrients from Substrate The practice of flushing is a current common industry practice but there is no evidence in published literature of its effectiveness in reducing nutrient concentrations within the bud or even whether or not this is a desirable result. This result showed that the intended purpose of flushing to reduce nutrient concentrations within the bud has no effect. This data shows that for the last two weeks of the flower cycle for cannabis, it was possible to use no fertilizer water for irrigation with no significant impact on yield while saving input costs on fertilizer Applies to Both Indoor and Outdoor Growing While there are differences for each growing environment, the same general concept applies. Specifics for each are provided in other videos, if you want to know some more details to best fit your growing conditions. Link to Lecture Slides: 420 Magazine Source Content by Slide Title: Flushing Specifics in Study Applies to Both Indoor and Outdoor Growing *Due to the description character limit the full work cited for "How To Properly Flush Cannabis Plants" can be viewed at... #cbd gummies mango #tinnitus gummies cbd #just cbd gummies quantity #cbd gummies high strength