Dwi Retno Lukiwati
Jurusan Pertanian, Fakultas Peternakan dan Pertanian, Universitas Diponegoro

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Peningkatan Produksi Jagung Manis dan Jerami dalam Sistem Integrasi Tanaman Pangan dan Peternakan Sapi Brangus Lukiwati, Dwi Retno; -, Karno; Kristanto, Budi Adi
Jurnal Ilmu Ternak Universitas Padjadjaran Vol 16, No 2 (2016)
Publisher : Fakultas Peternakan, Universitas Padjadjaran

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ulangan pada tanah vertisol.   Pupuk organik yang digunakan adalah alfagro, pupuk kandanghalus (pukan halus) dan pukan granul (granular) masing-masing 20 ton/ha. Dosis KCl dan urea,masing-masing 125 kg K/ha dan 200 kg N/ha. Perlakuan yang diberikan adalah T1 (alfagro), T2 (alfagro+urea), T3 (pukan halus), T4 (pukan halus+urea), T5 (pukan granul), T6 (pukan granul+urea), T7 (pukan granul+urea+KCl).  Panen jagung manis umur 70 hari setelah tanam, dan  jerami  dipotong  untuk  mendapatkan  data  produksi  tongkol  jagung  manis,  jerami  dan kelobot.   Hasil penelitian menunjukkan bahwa perlakuan yang diberikan nyata berpengaruh terhadap produksi tongkol jagung manis, maupun jerami dan kelobot tongkol jagung.  Hasil uji DMRT menunjukkan bahwa   pukan halus+urea (T4) dan pukan granul+urea (T6), masing- masing menghasilkan produksi jagung nyata lebih tinggi dibanding pukan tanpa urea. Perlakuan pukan granul+urea (T6) menghasilkan produksi jagung serta jerami dan kelobot nyata lebih tinggi dibanding pukan halus (T3) dan pukan granul (T5).   Disimpulkan bahwa penambahan pupuk anorganik pada aplikasi pupuk organik dapat meningkatkan produksi jagung dan jerami serta kelobot jagung manis.Kata Kunci:  Zea mays saccharata, jerami, kelobot, pupuk organik, pupuk anorganik
PERTUMBUHAN DAN BOBOT BAHAN KERING RUMPUT GAJAH DAN RUMPUT RAJA PADA PERLAKUAN ARAS AUKSIN YANG BERBEDA Mufarihin, Ahmad; Lukiwati, Dwi Retno; Sutarno, Sutarno
Animal Agricultural Journal Vol 1, No 2 (2012): Volume 1, Nomor 2, Tahun 2012
Publisher : Animal Agricultural Journal

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ABSTRAK   Urine sapi terdapat kandungan hormon auksin untuk merangsang pertumbuhan tanaman. Rumput gajah dan rumput raja adalah tanaman berkualitas unggul. Penelitian ini bertujuan pemanfaatan urine sapi betina sebagai sumber zat pengatur tumbuh pada tanaman, mengetahui kecepatan tumbuh, daya tumbuh, rasio tajuk dan akar, mengetahui titik optimal pertumbuhan kedua tanaman dari perlakuan aras urin sapi dan auksin sintetik. Penelitian telah dilaksanakan pada bulan Maret – Mei 2012 di lahan tanaman pakan Fakultas Peternakan dan Pertanian Universitas Diponegoro Semarang dan analisis bahan kering dilaksanakan di Laboratorium Ilmu Tanaman Makanan Ternak Fakultas Peternakan dan Pertanian Universitas Diponegoro Semarang. Hasil penelitian menunjukkan bahwa pemberian dosis urine sapi yang berbeda pada kedua tanaman tidak berpengaruh nyata terhadap kecepatan tumbuh, pertambahan tinggi, (P>0,01). Perlakuan jenis tanaman (R) berpengaruh sangat nyata terhadap perlakuan yang diujikan, kecuali pada uji rasio tajuk dan akar. Interaksi antar perlakuan (RxTy) tidak berpengaruh nyata pada uji kecepatan tumbuh, tetapi berpengaruh nyata terhadap daya tumbuh, tinggi tanaman (P<0,05) dan berpengaruh sangat nyata terhadap rasio tajuk dan akar (P<0,01). Daya tumbuh dan kecepatan tumbuh rumput gajah lebih tinggi dibandingkan rumput raja. Hasil penelitian disimpulkan perlakuan urine sapi berpengaruh terhadap pertumbuhan dan bobot bahan kering dengan hasil sesuai dengan hipotesis pada parameter tinggi tanaman.
Efek Sisa Pupuk Kandang Diperkaya Fosfat Alam terhadap Produksi Jagung Manis dan Jerami di Lahan Kering Lukiwati, Dwi Retno; Pujaningsih, R.I.
Jurnal Lahan Suboptimal Vol 3, No 2 (2014)
Publisher : Jurnal Lahan Suboptimal

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Manure enriched by rock phosphate (RP) and inoculated with biodecomposer very important to improve the upland fertility. Residual effects of applied manure can be used for the next growing season. The objective of the research was to investigate the residual effects of some kind of manure on sweet corn (Zea mays saccharata), dry matter (DM) and P production of stover on second growing season. A field experiment of completely randomized design with 7 treatments and four replicates. Level of P (RP), N (urea) and K (KCl) fertilizers was 66 kg P/ha, 200 kg N/ha, and 125 kg K/ha, respectively. All of manure application at 30 ton/ha and enriched with RP. The treatments at the first growing season were T0 (manure), T1 (manure +EM4), T2 (manure+starTmik), T3 (manure +stardec), T4 (manure granular+EM4), T5 (manure granular+starTmik), and T6 (manure granular+stardec). The sweet corn was harvested at 70 days, the stover was cut and measured for DM and P production. The result showed that effect of some kind of manure was not significantly different to sweet corn and DM production. Manure inoculated with biodecomposer resulted in signficantly higher of P production than without biodecomposer. Conclusion, all of manure resulted in similar on sweet corn and DM, except manure inoculated with biodecomposer resulted in higher of P production than without biodecomposer.
NILAI PRODUKSI RUMPUT GAJAH (Pennisetum purpureum Schumach & Thonn) DENGAN PEMUPUKAN ORGANIK DAN ANORGANIK SERTA INOKULASI MIKROORGANISME EFEKTIF (EM4) Wibowo, Teguh; Lukiwati, Dwi Retno; Sumarsono, Sumarsono
MEDIAGRO Vol 13, No 1 (2017)
Publisher : MEDIAGRO

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This study aimed to determine the equivalence of production value between the elephant grass (Pennisetum purpureum Scumach & Thonn) which was fertilized by an inorganic fertilizer (urea = P1) and the organic fertilizer (manure = P2 and bokashi = P3) were combined by inoculation an effective microorganisms EM4 = E. The study used the experimental design of split-plot on the basis of a randomized complete design consisting 3 replications. The main plot was 8 treatment combinations while the subplot was 3 defoliation periods (1, 2 and 3). Eight treatment combinations were: E0P0 (no EM4, no fertilizers); E1P0 (EM4, no fertilizers); E0P1 (no EM4, urea); E1P1 (EM4, urea); E0P2 (no EM4, manure); E1P2 (EM4, manure); E0P3 (no EM4, bokashi); and E1P3 (EM4, bokashi). The interaction effect fertilization and defoliation treatments was significant (P < 0.05) on the grass height, fresh forage production and nitrogen (N) production. This interaction effect was not significant (P > 0.05) on the number of tillers, dry matter (DM) production, digestibility of organic matter (OM) and digestibility of DM over the defoliation periods but the main effect in the form of defoliation periods was significant (P < 0.05) to the number of tillers and DM production. Number of tillers increased significantly (P < 0.05) throughout the defoliation periods whereas DM production increased significantly (P < 0.05) from the 1st defoliation to the 2nd defoliation and then decreased significantly (P < 0.05) in the 3rd defoliation. Fertilization of elephant grass used manure or bokashi which was inoculated by EM4 able to produce the number of tillers, grass height, fresh forage production and DM production which were equivalent of elephant grass which was fertilized by urea (without inoculation of EM4) but the N production was lower. This fertilization was only able to produce the number of tillers and DM production which were equivalent of elephant grass which was fertilized by urea (with inoculation of EM4) but grass height, fresh forage production and the N production were lower. Fertilization of elephant grass used manure, bokashi or urea (with or without inoculation of EM4) did not affect the elephant grass digestibility of DM and OM.?Keywords: Bokashi,defoliation of elephant grass, elephant grass, EM4, manure,? urea.
Tanggap pertumbuhan dan perkembangan tanaman tomat (solanum lycopersicum) terhadap paklobutrazol dan komposisi media tanam (Response of the growth and development of tomato plants (solanum lycopersicum) on paclobutrazol and the composition of the planting media) Nazibah, Maudi Siti Sarah; Karno, Karno; Lukiwati, Dwi Retno
Journal of Agro Complex Vol 2, No 3 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

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The objective of this research was to study the response of tomato plant on paclobutrazol and different planting media composition. The study used Completely Randomized Design factorial 4x3with the first factor wasapplication of paclobutrazol 0 ppm (P0), 50 ppm (P1), 100 ppm (P2), dan 150 ppm (P3), and the second factor was composition of planting media (soil:compost) 80%:20% (M1), 60%:40% (M2), dan 40%:60% (M3),with 3 replications. The parameters observed were plant height, number of leaves, number of flowers, leaf chlorophyll content, number of fruit. Data were subjected to analysis of variance and further test by Duncans Multiple Range Test (DMRT). The results showed that the application of paclobutrazol doses 50, 150 ppm, and without paclobutrazol (control) resulted in the number of flower of 70.56, leaf chlorophyll content index of 53.16, and plant height of 157.78 cm that ware significantly higher (p<0.05) than other treatments. The treatment without paclobutrazol with 60%:40% planting composition resulted in a significantly higher (p<0.05) leaf number than other treatments. Paclobutrazol doses of 100 ppm and 60%:40% of planting media composition yielded 10.33 fruitsthat was higher (p<0.05) than other treatments. Keywords : Paclobutrazol, planting composition, tomato, growth 
Pengaruh Inokulasi Cendawan Mikoriza Arbuskular (CMA) dan Pemupukan Fosfat terhadap Pertumbuhan dan Produksi Tanaman Kedelai (Glycine max (L.) Merrill) Fatikah, Ika; Lukiwati, Dwi Retno; Kristanto, Budi Adi
Journal of Agro Complex Vol 2, No 3 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

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The objective of this research was to study the growth and production of soybean at various doses of inoculum arbuscular mycorrhizal fungi (AMF) and phosphate fertilization i.e. guano, rock phosphate, guano+rock phosphate and TSP. This research was conducted in green house and Laboratory of Plant Physiology and Breeding, Faculty of Animal and Agricultural Sciences, Diponegoro University, and Laboratory of Micology, Gadjah Mada Universityfrom April 16th to August 18th 2017. The research was assigned in completely randomized factorial design with the first factor was the doses of inoculum AMF (0, 30, 45 and 60g/pot) and second factor was the phosphate fertilization (control, guano, rock phosphate, guano+rock phosphate and TSP). The results showed that inoculation of AMF with doses of 30 and 45 g/pot had significant effect on plant height, number of branches and pods. Inoculation of AMF with a dose of 60 g/pot significantly affected the number of branches and pods. Fertilization of guano, BP and guano+BP had significant effect on number of branches and pods, TSP fertilization had significant effect on plant height, number of branches and pods. Keyword: soybean, arbuscular mycorrhizal fungi, phosphorus fertilization 
Pertumbuhan dan produksi jagung manis (Zea mays saccharata) dengan pemupukan “Kotpi Plus” Dewangga, Nyoman Adhitya Putra; Lukiwati, Dwi Retno; Kristanto, Budi Adi
Journal of Agro Complex Vol 2, No 3 (2018)
Publisher : Department of Agriculture, Animal and Agricultural Sciences, Diponegoro University, Semara

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The research aimed to increase the quality of manure to “Kotpi Plus” and to study the effect on growth and yield of sweet corn. The research used monofactor randomized block design with six treatments and 5 replications. The treatments were T0. Control; T1. 100% “Kotpi Plus” + 0% Urea and TSP (UT); T2. 75% “Kotpi Plus” + 25% UT, T3. 50% “Kotpi Plus” + 50% UT; T4. 25% “Kotpi Plus” + 75% UT; and T5. 0% “Kotpi Plus” + 100% UT. Parameters measured were plant height, leaf number, cob length, cob weight with cornhusk, and sum of seed row in a cob. Data were subjected to analysis of variance and followed by DMRT at α = 5%. The result on plant height and leaf number showed that T4 167.7 cm was significantly higher compared to control and 8.21 leaves significantly higher compared to control and T1, respectively. “Kotpi Plus” combined with inorganic fertilizer produced cob length significantly higher compared to control. Cob weight with cornhusk on T4 was significantly higher compared to T0 and T1. The given of “Kotpi Plus” fertilizer was not affecting on sum of seed row in a cob. Keywords: Gliricidia sepium, growth, phosphate rock, sweet corn, yield.
PRODUKSI DAN NUTRISI HIJAUAN OKRA SEBAGAI PAKAN PADA SISTEM INTEGRASI TANAMAN-TERNAK Lukiwati, Dwi Retno
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 7 No 2 (2018): Pastura Vol. 7 No. 2 Tahun 2018
Publisher : Udayana University

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Ciri khas sistem integrasi tanaman-ternak adalah hasil utama tanaman pertanian untuk pangan atausayuran, jerami atau hijauannya untuk pakan ternak ruminansia sedangkan pupuk kandang (pukan)digunakan sebagai pupuk organik. Fosfor (P) termasuk unsur hara utama dan merupakan salah satu faktorpembatas produksi tanaman. Batuan fosfat (BP) sebagai salah satu pupuk P organik yang dapat ditingkatkankelarutannya apabila dicampurkan bersamaan dengan proses dekomposisi pupuk organik. Tujuan penelitianini untuk menguji pengaruh beberapa macam pupuk organik terhadap produksi dan kadar nutrisi daunokra (Abelmoschus esculentus L) sebagai hijauan pakan. Penelitian telah dilaksanakan di kebun percobaandengan rancangan acak kelompok, 9 perlakuan dan 3 ulangan. Perlakuan yang diberikan adalah T1 (BP),T2 (kompos azolla), T3 (pukan sapi), T4 (pukan kambing), T5 (pukan ayam), T6 (kompos azolla+BP), T7(pukan sapi+BP), T8 (pukan kambing+BP), T9 (pukan ayam+BP). Pemangkasan hijauan dilakukan padaumur 80 hari setelah tanam, kemudian ditimbang untuk mengetahui produksi segar hijauan dan dianalisiskadar nitrogen serta fosfor. Hasil penelitian menunjukkan bahwa perlakuan pemupukan berpengaruh nyataterhadap produksi segar hijauan, kadar N dan P. Hasil uji DMRT menunjukkan bahwa produksi hijauansegar, kadar N dan P nyata lebih tinggi jika dipupuk pukan kambing+BP (T8) dan pukan ayam+BP (T9)dibanding perlakuan lainnya.Kata kunci: Abelmoschus esculentus L, batuan fosfat, pupuk kandang, nutrisi, produksi
EFEK SISA PUPUK KANDANG DIPERKAYA FOSFAT ALAM DALAM BENTUK GRANULAR DAN DI INOKULASI BIODEKOMPOSER TERHADAP NUTRISI JERAMI JAGUNG MANIS DI LAHAN KERING Lukiwati, Dwi Retno; Pujaningsih, Retno Iswarin
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 4 No 2
Publisher : Udayana University

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Efek sisa pupuk kandang diperkaya fosfat alam (FA) bermanfaat untuk musim tanam berikutnya. Tujuan penelitian untuk mengetahui pengaruh pukan diperkaya FA (pukan) dalam bentuk granular dan di inokulasi biodekomposer terhadap nutrisi jerami jagung manis (Zea mays saccharata) pada musim tanam kedua. Penelitian lapang menggunakan rancangan acak lengkap dengan 7 perlakuan dan 4 ulangan pada tanah vertisol. Dosis unsur hara P (FA), N (urea), dan K (KCl) masing-masing 66 kg/ha, 200 kg/ha dan 125 kg K/ha. Dosis pukan 30 t/ha dan semua diperkaya FA. Perlakuan yang diberikan adalah T0 (pukan), T1 (pukan+EM4), T2 (pukan+starTmik), T3 (pukan+stardec), T4 (pukan granular+ EM4), T5 (pukan granular+starTmik), T6 (pukan granular+stardec). Panen jagung manis pada umur 70 hari setelah tanam, dan jerami dipotong untuk mendapatkan data kadar protein kasar (PK), fosfor (P) dan kalsium (Ca). Hasil penelitian menunjukkan bahwa efek residu pukan tanpa biodekomposer (T0) menghasilkan kadar PK jerami jagung manis berbeda tidak nyata dibanding perlakuan lainnya, kecuali pada T4. Efek residu pukan dalam bentuk granular maupun non-granular dengan inokulasi biodekomposer menghasilkan kadar P dan Ca jerami jagung manis nyata lebih tinggi dibanding tanpa biodekomposer. Dapat disimpulkan bahwa efek residu pukan dengan inokulasi biodekomposer mempunyai kemampuan setara dalam menghasilkan kadar PK, namun lebih tinggi kadar P dan Ca jerami jagung manis dibanding pukan tanpa biodekomposer.
PRODUKSI JAGUNG MANIS DAN KADAR MINERAL JERAMI PADA TIGA MUSIM TANAM DENGAN PEMUPUKAN PUKAN ‘PLUS’ Lukiwati, Dwi Retno; Purbasari, Endang Dwi; Pujaningsih, Retno Iswarin
Pastura : Jurnal Ilmu Tumbuhan Pakan Ternak Vol 7 No 1 (2017): Pastura Vol. 7 No. 1 Tahun 2017
Publisher : Udayana University

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Tujuan penelitian untuk mengetahui pengaruh pupuk kandang (pukan) “plus” terhadap hasil jagungmanis dan kadar mineral jerami pada tiga musim tanaman (MT). Penelitian dengan rancangan acaklengkap, tujuh perlakuan dan empat ulangan selama 70 hari. Perlakuan hanya diberikan pada MT-I yaituT0 (pukan), T1 (pukan+EM4), T2 (pukan+starTmik), T3 (pukan+stardec), T4 (pukan granular+EM4), T5(pukan granular+starTmik), and T6 (pukan granular+stardec). Hasil penelitian menunjukkan bahwa pukanberpengaruh tidak nyata terhadap hasil jagung manis. Kadar Ca dan P jerami lebih tinggi dengan pukandiinokulasi biodekomposer dibanding tanpa biodekomposer.Kata kunci: biodekomposer, pupuk kandang, fosfor, jerami, Zea mays saccharata