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SKRIPSI PENGARUH DOSIS DOLOMIT DAN PUPUK ZA PADA TANAH GAMBUT TERHADAP PERTUMBUHAN BIBIT KARET (Hevea brasiliensis M.A)
ABSTRACT
The aim research to know the influence of using many dolomit doses and ZA fertilizer to hevea seedling growth (Hevea brasiliensis M.A.).
The research was begun on Juni until August 26, l992 at Dumpoh, Potrobangsan village, North Magelang Sub the altitude 376 meters of the sea level.
The research was done in the plastik hause, so using Factorial method with bottom desigh it's Complete Rondomized Desigh (CRD), had two factors it's many dolomit doses and ZA fertilizer, with three replication the factor as follow :
Factor l : The dolomit doses (D) had 4 levels, it's :
D0 : No the dolomit dose treatment/pot
D1 : The dolomit dose 50 gram/pot
D2 The dolomit dose 60 gram/pot
P3 : The dolomit dose 90 gram/pot
Factor 2 : The ZA fertilizer doses (N) had 4 levels, it's :
lNo : No the ZA fertilizer dose treatment/pot
N1 :The ZA fertilizer dose 4 gram/pot
N2 : The ZA fertilizer dose 8 gram/pot
N3 : The ZA fertilizer dose l2 gram/pot
The result of the research showed that treatment of many dolomit doses was very significant influence to heigh of seedling, the leaves number, the stem diameter, the fresh weight of seedling, the tap root lenght, the lateral roots numberand the dry weight of seedling. The result heighest the dolomit dose 60 gram treatment/pot (D2) and howest no the dolomit dose treatment/pot (D0).
The ZA fertilizer doses was very significant influence the leaves number, the fresh weight of seedling, the tap root lenght, the lateral roots number, the dry weight of seedling and significant influence to the heigh of seedling and the stem diameter, The result heighest to the ZA fertilizer dose 8 gram treatment/pot (N2) and howest no the ZA fertilizer dose treatment/pot (N0).
It was't interaction of the between dolomit doses and ZA fertilizer doses that was try for all observation parameters.
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