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KARLA SETYANING PUSPITA SARI

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk: 1) mengetahui pengaruh pemberian jenis asap cair dengan dosis pupuk anorganik N, P, K terhadap fisiologi pertumbuhan dan hasil tanaman jagung manis, 2) mengetahui kombinasi terbaik jenis asap cair dan pupuk anorganik N,P,K yang dapat memberikan hasil tinggi tanaman jagung manis. Penelitian dilaksanakan di lahan kebun percobaan Fakultas Pertanian, Universitas Jenderal Soedirman, dari bulan Februari sampai April 2015. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 7 perlakuan dan diulang 4 kali. Perlakuan terdiri atas: P0= Pemberian 100% dosis rekomendasi pupuk anorganik N, P, K, P1= Pemberian 50% dosis rekomendasi pupuk anorganik N, P, K dan asap cair tempurung kelapa, P2= Pemberian 50% dosis rekomendasi pupuk anorganik N, P, K dan asap cair kayu sobsis, P3= Pemberian 50% dosis rekomendasi pupuk anorganik N, P, K dan asap cair campuran, P4= Pemberian 100% dosis rekomendasi asap cair tempurung kelapa, P5= Pemberian 100% dosis rekomendasi asap cair kayu sobsis, P6= Pemberian 100% dosis rekomendasi asap cair campuran.  Variabel yang diamati: laju pertumbuhan tanaman, laju pertumbuhan relatif, laju asimilasi bersih kadar klorofil, panjang tongkol, jumlah biji, bobot tongkol berkelobot, bobot tongkol tanpa kelobot, jumlah baris per tongkol, diameter tongkol, hasil, dan indeks panen. Hasil penelitian menunjukkan ketiga jenis asap cair dan pupuk N, P, K mampu meningkatkan fisiologi pertumbuhan dan hasil tanaman. Kombinasi yang terbaik ditunjukkan pada perlakuan 50% dosis rekomendasi pupuk N, P, K dan asap cair.

Abtrak (Bhs. Inggris)

Objective of this study was: 1) to know the effect of wood vinegar with a dose of N, P, K fertilizer to physiology and yield of sweet corn, 2) to know the best combination wood vinegar and N,P,K fertilizer that can provide high yield of sweet corn. The study was carried out at the experimental land Faculty of Agriculture, Jenderal Soedirman University,  from February to April 2015. Randomized Block Design with repeated 4 times of P0= 100% inorganic N, P, K recommended fertilizer dosage, P1=50% inorganic N, P, K recommended fertilizer dosage and wood vinegar of coconut shell, P2= 50% inorganic N, P, K recommended fertilizer dosage and wood vinegar of wood sobsis, P3= 50% inorganic N, P, K recommended fertilizer dosage and wood vinegar of mixture from wood sobsis and coconut shell), P4= 100% wood winegar of coconut shell recommended dosage, P5=  wood winegar of wood sobsis recommended dosage, P6= wood vinegar mix from coconut shell and wood sobsis recommended dosage. The variable observed were: crop growth rate, relative growth rate, net assimilation rate, clorophyl rate, cob lenght, cob weight, number of seed, number of line, the cons diameter, yield cob and harvest index. The results showed all three types of wood winegar and N, P, K fertilizer either have to increase physiology and yiled of sweet corn. 50% inorganic N, P, K recommended fertilizer dosage and  wood vinegar were the best combination.

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