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SKRIPSI PENGARUH DOSIS DAN SAAT PEMBERIAN PUPUK SP-36 TERHADAP HASIL TANAMAN KACANG TANAH ( Arachis hypogaeya L. )
ABSTRACT
The experiment is to study the effect of SP-36 ferti- lizer dose and time application of SP-36 fertilizer on yield of ground nuts (Arachis hypogaea L.) has been carried out since 7 March until 12 June 1996 at Girirejo village, Tegal- rejo distric, Magelang regency. The soil type with latosol with pH 6,4 and altitude 380 meters above sea level.
The methode uses factorial experiment (3x3) with random- ized complete block design (RCBD), consisted of three repli- cations. The first factor is SP-36 fertilizer dose, the con- sisted of three levels: D, (50 kg/ha SP-36 fertilizer dose), D2 (100 kg/ha SP-36 fertilizer dose), D (150 kg/ha SP-36 fertilizer dose). Second factor is time application of SP-36 fertilizer, consisted of three levels S, (at the same mo- ment of planting), S2 (10 days after planting) and Sz (20 days after planting).
The result of the experiment shows that :
1. The rise of SP-36 fertilizer dose can increase number of filled pods, fresh weight of filled pods, dry weight of
seeds, and decrease number of immature pods. But not in- crease fresh weight of straw, dry weight of straw and dry weight of 100
seeds.
2. Faster supply of SP-36 fertilizer can
increase number of filled pods, fresh weight of filled pods and dry weight seeds, but slowly supply of SP-36 fertilizer can increase
dry weight 100 seeds. But faster and slowly supply of SP-36 fertilizer not increase fresh weight of straw, dry weight of straw and
number of immature pods.
3. Supply of SP-36 fertilizer dose until 150 kg/ha still can increase yield of ground nuts and supply of SP-36 ferti- lizer 10 days after
planting can increase yield of ground nuts.
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