tag:blogger.com,1999:blog-3161424655689380473.post6861128834814949832..comments2024-03-26T06:30:07.649-05:00Comments on Green Roof Growers: Coir vs Peat in a Sub-Irrigated Planter (SIP): Three Weeks InBrucehttp://www.blogger.com/profile/04901484046810490059noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-3161424655689380473.post-29678343618801688712010-04-30T16:52:30.804-05:002010-04-30T16:52:30.804-05:00The experiment isn't looking good over here ei...The experiment isn't looking good over here either.<br /><br />On April 12th, I planted four SIPs; each with the same sampling of greens--tatsoi, bok choy, chard, rapa. <br /><br />#1 - 30% old mix (coir/earthworm castings, peat) from my potato box experiment, 50% old potting mix, 20% perlite.<br /><br />#2 - 70% old BAACTO potting mix, 30% added perlite<br /><br />#3 - 40% old BAACTO potting mix, 40% coir, 20% perlite. <br /><br />#4 - 70% coir, 30% perlite.<br /><br />All got the same amount of 3-3-3 organic fertilizer.<br /><br />SIP #2 looks great, closely followed by #3. #1 looks like it's struggling, not thriving. #4, while not as bad looking as the plant in your photo, is fugly.<br /><br />The strange thing is that all the tomato, eggplant, and pepper seedlings I've started--not to mention all the cold weather seedlings--in the 70/30 coir/perlite mix are still going strong.Brucehttps://www.blogger.com/profile/04901484046810490059noreply@blogger.com