PENINGKATAN KETERSEDIAAN DAN SERAPA

PENINGKATAN KETERSEDIAAN DAN SERAPAN NPK SERTA HASIL TANAMAN JAGUNG BISI-16 MELALUI INOKULASI MIKORIZA
DAN PUPUK NPK PADA ALFISOL

Yovita Yashinta Boly
[e-mail]

ABSTRAK
Tujuan dari penelitian ini adalah mengkaji pengaruh isolat mikoriza berbeda rhizosfer asal dan pupuk NPK berbeda dosis terhadap ketersediaan dan serapan NPK serta hasil tanaman jagung dan menentukan dosis optimum pupuk NPK untuk setiap isolat mikoriza berbeda rhizosfer asal yang diinokulasikan terhadap hasil tanaman jagung. Penelitian ini menggunakan rancangan acak kelompok (RAK) yang terdiri atas 20 perlakuan kombinasi dengan tiga ulangan yaitu tanpa mikoriza dan tanpa pupuk (m0p0), tanpa mikoriza + 25% dosis NPK (m0p1), tanpa mikoriza + 50% dosis NPK (m0p2), tanpa mikoriza + 75% dosis NPK (m0p3), tanpa mikoriza + 100% dosis NPK (m0p4), mikoriza asal rhizosfer tanaman jagung + tanpa pupuk (m1p0), mikoriza asal rhizosfer tanaman jagung + 25% dosis NPK (m1p1), mikoriza asal rhizosfer tanaman jagung + 50% dosis NPK (m1p2), mikoriza asal rhizosfer tanaman jagung + 75% dosis NPK (m1p3), mikoriza asal rhizosfer tanaman jagung + 100% dosis NPK (m1p4), mikoriza asal rhizosfer tanaman ubi kayu + tanpa pupuk (m2p0), mikoriza asal rhizosfer tanaman ubi kayu + 25% dosis NPK (m2p1), mikoriza asal rhizosfer tanaman ubi kayu + 50% dosis NPK (m2p2), mikoriza asal rhizosfer tanaman ubi kayu + 75% dosis NPK (m2p3), mikoriza asal rhizosfer tanaman ubi kayu + 100% dosis NPK (m2p4), mikoriza asal serpong + tanpa pupuk (m3p0), mikoriza asal serpong + 25% dosis NPK (m3p1), mikoriza asal serpong + 50% dosis NPK (m3p2), mikoriza asal serpong + 75% dosis NPK (m3p3), mikoriza asal serpong + 100% dosis NPK (m3p4). Hasil penelitian menunjukkan perlakuan mikoriza dan dosis pupuk NPK mampu meningkatkan ketersediaan NPK, serapan NPK, bobot kering tanaman dan bobot biji pipilan kering. Uji regresi menunjukkan dosis optimum NPK pada perlakuan m0 tidak dapat ditentukan karena bersifat linear, sedangkan dosis optimum pupuk NPK pada perlakuan yang diinokulasikan mikoriza asal rhizosfer tanaman jagung (m1) yaitu 50,66% dosis anjuran, pada perlakuan mikoriza asal rizosfer ubi kayu (m2) adalah 45,11%, dan pada perlakuan mikoriza asal serpong (m3) adalah 46,10%.

Kata kunci: Jagung, Mikoriza, Serapan NPK.

Results (English) 1:

INCREASED AVAILABILITY and UPTAKE of MAIZE CROPS and NPK BISI-16 through MYCORRHIZA INOCULATION AND FERTILIZER NPK IN ALFISOLYovita Yashinta [e-mail] purpose of this study was to examine the influence of the isolates of different origin and rhizosfer mycorrhiza fertilizer NPK different doses against the availability and uptake of maize crops as well as NPK and NPK fertilizers determines the optimum dose for each isolate different mycorrhiza rhizosfer original diinokulasikan against crops of corn. This study used a randomized design group (RAK) which consists of 20 treatment combinations with three replicates IE without mycorrhiza and without manure (m0p0), without mycorrhiza + 25% dosage of NPK (m0p1), without mycorrhiza + 50% dosage of NPK (m0p2), without mycorrhiza + 75% dosage of NPK (m0p3), without mycorrhiza + 100% dosage of NPK (m0p4), mycorrhiza origin rhizosfer + corn plants without mulch (m1p0), mycorrhiza origin rhizosfer corn plants + 25% dosage of NPK (m1p1) origin of the mycorrhiza, rhizosfer corn plants + 50% dosage of NPK (m1p2), mycorrhiza origin rhizosfer corn plants + 75% dosage of NPK (m1p3), mycorrhiza origin rhizosfer corn plants + 100% dose of NPK (m1p4), mycorrhiza origin rhizosfer plant manioc + without fertilizers (m2p0), mycorrhiza origin rhizosfer plant manioc + 25% dosage of NPK (m2p1), mycorrhiza origin rhizosfer plant manioc + 50% dosage of NPK (m2p2), mycorrhiza origin rhizosfer plant manioc + 75% dosage of NPK (m2p3) mycorrhiza rhizosfer origin, plant manioc + 100% dosage of NPK (m2p4), mycorrhiza origin serpong + without fertilizers (m3p0), mycorrhiza origin serpong + 25% dosage of NPK (m3p1), mycorrhiza origin serpong + 50% dosage of NPK (m3p2), mycorrhiza origin serpong + 75% dosage of NPK (m3p3), mycorrhiza origin serpong + 100% dosage of NPK (m3p4). The results showed the treatment dose and NPK fertilizer mycorrhiza was able to increase the availability of NPK NPK uptake, dry weights, plant and seed weights pipilan dry. Regression test shows the optimum dosage of NPK on m0 treatment cannot be determined because of the linear nature of the optimum dose, whereas fertilizer NPK treatments on the diinokulasikan original rhizosfer mycorrhiza corn plants (m1) namely 50,66% dosage recommendations, on the origin of mycorrhiza treatments rizosfer manioc (m2) was 45,11%, and on the origin of mycorrhiza treatments serpong (m3) is 46,10%.Key words: corn, Mycorrhiza, NPK Uptake.

Results (English) 2:

INCREASING AVAILABILITY AND uptake of NPK AND RESULTS OF CORN BISI-16 by inoculation of mycorrhizal
AND FERTILIZER NPK ON Alfisol Yovita Yashinta Boly [e-mail] ABSTRACT The aim of this study was to assess the effect of different isolates of mycorrhizal rhizosphere origin and different NPK fertilizer dose on the availability and uptake NPK and corn crop yields and determine the optimum dosage of NPK fertilizer for each different isolates of mycorrhizal rhizosphere origin inoculated against corn crop yield. This study uses a randomized complete block design (RAK) consisting of 20 treatment combinations with three replications ie without mycorrhiza and without fertilizer (m0p0) without mycorrhiza + 25% dose of NPK (m0p1) without mycorrhiza + 50% dose of NPK (m0p2) without mycorrhiza + 75% dose of NPK (m0p3) without mycorrhiza + 100% dose of NPK (m0p4) mycorrhizal origin of the rhizosphere of plants corn + without fertilizer (m1p0) mycorrhizal origin of the rhizosphere of plants corn + 25% dose of NPK (m1p1) mycorrhizal origin rhizosphere of plants corn + 50% dose of NPK (m1p2) mycorrhizal origin of the rhizosphere of plants corn + 75% dose of NPK (m1p3) mycorrhizal origin of the rhizosphere of plants corn + 100% dose of NPK (m1p4) mycorrhizal origin of the rhizosphere of cassava + without fertilizers ( m2p0) mycorrhizal origin of the rhizosphere of cassava + 25% dose of NPK (m2p1) mycorrhizal origin of the rhizosphere of cassava + 50% dose of NPK (M2P2), mycorrhizal origin of the rhizosphere of cassava + 75% dose of NPK (m2p3) mycorrhizal origin rhizosphere of cassava + 100% dose of NPK (m2p4) mycorrhizal origin serpong + without fertilizer (m3p0) mycorrhizal origin serpong + 25% dose of NPK (m3p1) mycorrhizal origin serpong + 50% dose of NPK (m3p2) mycorrhizal origin serpong + 75% dose of NPK (m3p3) mycorrhizal origin serpong + 100% dose of NPK (m3p4). The results showed mycorrhizal treatment and dosage of NPK fertilizer can increase the availability of NPK, NPK uptake, plant dry weight and seed weight dry seed. Regression test showed the optimum dosage of NPK on m0 treatment can not be determined because it is linear, while the optimum dosage of NPK fertilizer on the treatment of inoculated mycorrhizal rhizosphere origin of maize (m1) is 50.66% the recommended dose, in the treatment of native mycorrhizal rhizosphere of cassava (m2 ) is 45.11%, and the treatment of native mycorrhizal serpong (m3) is 46.10%. Keywords: Maize, Mycorrhizae, NPK uptake.