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ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemupukan sumber fospor yang berbeda terhadap pertumbuhan dan perakaran Pueraria javanica yang diinokulasi dengan FMA. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) 3 perlakuan pemupukan fospor yang terdiri P0=Tanpa pupuk fospor (0 g/pot), P1= Pupuk SP36 200 kg/ha (1 g/pot), dan P2= rock phospat 200 kg/ha (1 g/pot), dengan 4 ulangan. Seluruh pot perlakuan mendapatkan inokulasi dengan mikoriza. Peubah yang diukur adalah tinggi tanaman, jumlah daun, jumlah cabang, panjang akar, jumlah nodul akar, jumlah nodul aktif, dan persentase nodul aktif. Hasil analisis ragam menunjukkan bahwa perlakuan tidak berpengaruh nyata (P>0.05) terhadap semua parameter. Hasil penelitian menunjukkan bahwa dengan adanya inokulasi dengan FMA, unsur hara makro dan mikro Pueraria javanica sudah terpenuhi tanpa pemupukan fospor di ultisol. ABSTRACTThis research was aims to assess effect of the different phospor fertilizer on the growth and nodules in Pueraria javanica inoculated with Arbuscular Fungi Micorrhyza. This experimental design was Completely Randomized Design (CRD) with three phospor fertilizer treatments: P0 = 0 kg/ha phosphor (0, g/pot), P1 = SP36 200 kg/ha (1 g/pot), and P2 = rock phosphate 200 kg/ha (1 g/pot), with four replicates. The whole pot treatments received mycorrhizal inoculation. The variables measured were plant height, number of leaves, number of branches, root length, number of root nodule, number of active nodules , and the percentage of active nodules. The results of data analysis show that the treatment has no effect (P > 0.05) for all parameters. The results showed that the presence of mycorrhizal inoculation, macro and micronutrient elements of Pueraria javanica already fulfilled without phosporus fertilizing in ultisol.

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This study aims to determine the response of superovulation, corpus luteum number, onset and duration of estrus in Swamp Buffalo after administration of Follicle Stimulating Hormone (FSH) and Gonadotropin Releasing Hormone (GnRH). The material used is 16 mother Swamp Buffaloes with an average body weight of 500 kg and age between 3-5 years. The dairy performance index such as the lactation period was 127.5±104.6 days, the milk production accounted for 2.0±0.9 kg/cow/day and the milk yield was 255±209 kg/lactation. The experimental design used was a Completely Randomized Design (CRD) consisting of four replications. Swamp buffaloes are synchronized with 5 mL of PGF2α injection. GnRH hormone injection on the 8th day at a dose of 500 µg with 2 times in the morning and evening. FSH injection begins on the 10th day with 2 times a day i.e., morning and night (12 h interval) with a dose decreased for 3 days intramuscularly. Artificial insemination was carried out after signs appear estrus. The parameters observed include the superovulation response, the number of corpus luteum, the onset and duration of estrus in the Swamp Buffalo. The results obtained are the superovulation response in 56.25% Swamp Buffalo. The average number of corpus luteum, speed and duration of swamp buffalo estrus at different FSH doses and addition of 500 μg GnRH were 1.75, 20.25 and 145.75 h respectively. It was concluded that superovulation by administering a dose of 16 ml FSH + 500 μg GnRH has shown the best superovulation response and a long duration of estrus. The administration of 22 mL FSH dose and the addition of 500 μg GnRH showed the fastest onset of estrus.