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SKRIPSI PENGARUH SAAT PEMBERIAN PUPUK NPK DAN PUPUK DAUN SANDOFLOR PADA PEMBIBITAN KAKAO (Theobroma cacao L.)
ABSTRACT
An experiment to study the effect of time application of NPK fertilizer and Sandoflor spray on cacao seedlings growth, was carried out at Kramat village, Magelang starting from March 1991 until Mey 1991. The soil type is regosol, the soil pH 6,6 with an altitude of 376 m. about sea level.
The experimental design used was Completely Randomized Design (RCD), consisted of 7 treatments with 4 replications for each treatment. The treatments were :
P0 : for no NPK fertilizer and Sandoflor
P1 : with NPK fertilizer. 4 weeks after planting with 0,5 g.dose
P2 : with NPK fertilizer 4 weeks after planting with 0,5 g. dose and 1 g. application 4 next weeks
P3 : with NPK fertilizer with 1 g. dose to age 8 weeks after planting
P4: with NPK fertilizer 4 weeks after planting with 0,5 g. dose and sprayer with Sandoflor leave fertilizer 3 weeks after planting
P5 : with NPK fertilizer 4 weeks after planting with 0,5 g. dose and 1 g. application 4 next weeks at once sprayer with Sandoflor leave fertilizer 3 weeks and 6 weeks after planting
P6: just sprayer with Sandoflor leave fertilizer 3 weeks after planting.
The results of the experiment showed that, the treatment had significantly different effect on height of seedlings an very significantly different on number of leaves, lenght of tap roots, diameter of stem, fresh weight of seedlings and dry weight of seedlings.
The best effect on height of seedlings, number of leaves, lenght of tap roots, diameter er of stem, fresh weight and dry weight of seedlings was shown by P5 , that is fertilizing NPK at 4 weeks after planting and Sandoflor spray at 3 and 6 weeks after planting.
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