Kajian water table pada semai perepat (combretocarpus rotundatus miq dan jelutung (dyera lowii hook) diinokulasi glomus sp 3 di tanah gambut = Study Of Water Table In Seedlings Of Perepat (Combretocarpus rotundatus Miq) andJelutung (Dyera lowii Hook) Inoc
A study on the influence of water table on the growth Combretocarpus rotundatus Miq and
Dyera lowii
Hook inoculation with arbuscular mycorrhizal fungi (AMF) and fertilization SP 36 in peat soils was conducted in greenhouse Soil Sience Laboratory Faculty of Agriculture, is Gadjah Mada University in Yogyakarta for 14 weeks. The goal of research purpose wa to determine the effect of water table, P fertilization and inoculation with AMF on the growth of C.rotundatus Miq and D.lowii Hook seedlings. Nursery experiments were conducted using Completely Randomized Factorial Design with three replications. Observations made on C.rotundatus Miq and D.lowii Hook seedlings 14 weeksof age after weaning include: height, diameter, number of leaves, shoot dry weight, and P uptake of plants after harvest. Experiments of water table, fertilized of 100 ppm SP 36 and inoculated with Glomus sp 3 resulted in the best water table is 20 cm in C.rotundatus Miq and D.lowii Hook seedlings. In the water table 20 cm increase in growth of C.rotundatus Miq are 324.86% high, 366.67% diameter, 437.50 % number of leaves, 630.00% shoot dry weight and P uptake of 835.80%. For D.lowii Hook are 107.61% high,
136.05% diameter, 42.01 % number of leaves, shoot dry weight of 643.83% and 851.56% P uptake. It was concluded that inoculation with the AMF type of Glomus sp 3 combined with the provision of P fertilizer dosage of 100 ppm SP 36 and planting on water table level 20 cm and 10 cm can be used widely to improve growth of C. rotundatus Miq and D. lowii Hook seedling in the nursery.
= Penelitian pengaruh water table (jeluk muka air tanah) terhadap pertumbuhan perepat (Combretocarpus rotundatus Miq) dan jelutung (Dyera lowii Hook) dengan inokulasi jamur mikoriza arbuskula (JMA) dan pemupukan SP 36 di tanah gambut dilaksankan di rumah kaca laboratorium Ilmu Tanah Fakultas Pertanian Universeitas Gadjah Mada Yogyakarta selama 14 minggu. Tujuan penelitian untuk mengetahui pengaruh jeluk muka air tanah, pemupukan P dan inokulasi JMA terhadap pertumbuhan semai perepat dan jelutung. Percobaan persemaian menggunakan Rancangan Acak Lengkap Faktorial dengan tiga ulangan. Pengamatan dilakukan pada umur semai perepat dan jelutung 14 minggu setelah penyapihan yang meliputi: tinggi, diameter, jumlah daun, dan untuk berat kering pucuk dan serapan P tanaman dilakukan setelah panen. Percobaan pengujian jeluk muka air tanah pada semai perepat dan jelutung yang dipupuk SP 36 takaran 100 ppm dan diinokulasi dengan Glomus sp 3 membuktikan bahwa jeluk muka air tanah terbaik adalah 20 cm. Pada jeluk muka air tanah 20 cm peningkatan pertumbuhan untuk perepat tinggi 324,86 %, diameter 366,67 %, jumlah daun 437,50 %, berat kering pucuk 630,00 % dan serapan P
835,80 %. Untuk jelutung tinggi 107,61 %, diameter 136,05 %, jumlah daun 42,01 %, berat kering pucuk
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