PENGARUH PUPUK NPK DAN AIR KELAPA SEBAGAI ZAT PENGATUR TUMBUH ALAMI TERHADAP PERTUMBUHAN BIBIT KAKAO (Theobroma cacao L.) DI MEDIUM SUB SOIL
Abstract: The research aimed
to see the interaction of NPK fertilizer and coconut water as natural ZPT, and
the effect of NPK fertilizer, coconut water and to get the dose of NPK
fertilizer and the best coconut water concentration on cocoa seed growth in the
sub soil medium. The experiment was conducted in the experimental station of
Agriculture Faculty of Riau University from June to August 2016. The research
used Completely Randomized Design (RAL) consisting of 2 factors and 3
replications. The first factor of dose of NPK fertilizer was 0,2,4,6 g / plant,
the second factor was coconut water 0%, 25%, 50%, 75%. Data have been
statistically analyzed and examined further with BNJ if significant effect on
level 5%. The outcomes indicated that there was interaction between NPK
fertilizer and coconut water on cocoa seed height, leaf field and dry weight,
simply did not interact on stem circumference, leaf number and root canopy
ratio of cocoa seedlings. Giving a dose of NPK fertilizer 4 to 6 g / plant
gives a better effect on cocoa seed height, stem circumference, leaf number,
leaf area and dry weight of cocoa seedlings. Provision of 50% coconut water
concentration gave a better effect on stem circumference, leaf number, leaf
area and dry weight of cocoa seedlings. The dosage of NPK 6 g fertilizer and
concentration of coconut water 50% showed the best treatment on cocoa seed
height, leaf area and dry weight of cocoa seed in the sub soil medium.
Penulis: Dodi Irvandi,
Nurbaiti
Kode Jurnal: jppertaniandd170205