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OverviewTh term gr nh u n n m a w d v r t f tru tur m d with d ff r nt building m t r l . G n r ll k ng, gr nh u have a k l t l structure which can b m d ut f h rd plastics, wood, m t l, and more. This k l t l structure h large g thr ugh which sunlight can tr v l. Th g are v r d b a tr n lu nt m t r l - t ll glass r l t . Th basic r n l th t ll w gr nh u t ntr l th r nv r nm nt very m l r t the gr nh u ff t. L ght passes through th translucent m t r l n th greenhouse nd converted nt h t. Th h t then tr d n d the bu ld ng and nn t l v . Th r r a large v r t f greenhouse types, fr m th humbl l tunn l t V t r n- r gl h u to modern gr nh u nd h br d gr nh u . The three r m r m th d of ult v t n - utd r, gr nh u nd indoor - have d ff r nt r du t n r f l . Outd r ult v t r r du n harvest r year n th f ll, whereas nd r ult v t r produce year-round nd can g n r t b tw n 4 and 6 h rv t per year. Gr nh u ult v t r combine l m nt f b th - x l t ng n tur l light, while l v r g ng nfr tru tur and t hn l g - t produce b tw n 1 nd 4 h rv t r r, though h t t d, well-equipped gr nh u can run r-r und n h dul n l g u t indoor r du t n. Th r ult f this m x f cultivation methods th t gr w r r h th m rk t d ff r ntl at d ff r nt times of th year. S n utd r cultivators r du n large h rv t n th fall, wh h drives prices down, th t nd to r l r du t into the m rk t in a ntr ll d manner - selling n ugh in th fall to generate cash fl w t cover expenses, but h ld ng b k nv nt r t r l later n th r as r r . Thu , outdoor ult v t r - n g n r l - are price tt r n the fall and r t k r in late r ng and rl umm r. In late 2017, researchers w th th Un v r t f Gu l h in C n d ubl h d th f r t- v r tud t d um nt th d l gr w ng nd t n for nn b . U ng l u d rg n fertilizer w th a PKN r t f 1.3P-1.7K-4.0N, the x r m nt t t d f v n r ng rates of f rt l z t n. Th l t t d tw r-b d soil-less gr w ng m d , or substrates. Th team f und that, when t m t gr w ng m r ju n in - r, th h gh t ld, cannabinoid content and l nt growth were achieved r und n rg n fertilizer rate th t u l d 389 mg N/L dur ng the v g t t v gr wth t g . Full Product DetailsAuthor: Barbara DawsonPublisher: Independently Published Imprint: Independently Published Dimensions: Width: 14.00cm , Height: 0.50cm , Length: 21.60cm Weight: 0.109kg ISBN: 9798687178556Pages: 86 Publication Date: 17 September 2020 Audience: General/trade , General Format: Paperback Publisher's Status: Active Availability: Temporarily unavailable ![]() The supplier advises that this item is temporarily unavailable. It will be ordered for you and placed on backorder. Once it does come back in stock, we will ship it out to you. Table of ContentsReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |