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Tri Dewi Andalasari
Jurusan Agroteknologi Fakultas Pertanian Universitas Lampung
Agriculture, Biological Sciences & Forestry

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Response of Growth and Results of Sweet Corn Plants (Zea mays Saccharata Sturt.) To the Effect of Dosage and Time of Fertilizing Bio-slurry Liquid Fertilizers Vina Oktavia; Hidayat Pujisiswanto; Akari Edy; Tri Dewi Andalasari
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.1237

Abstract

The study aimed to was determine the effect of dose and time of fertilization bio-slurry liquid fertilizer on the growth and yield of sweet corn was held in Tanjung Laut, Fajar Baru village, Jati Agung district, South Lampung regency in October 2016 to January 2017. In this study used Randomized Block Design (RBD) with factorial treatment design (4 x 2) with three replications. The first factor was the dose of bio-slurry liquid fertilizer consisted 4 levels were 0, 25, 50, and 75 l/ha. The second factor was the fertilization time consisted of 2 levels were (2 and 4 MST) and (2, 4, and 6 MST). Variance of homogeneity was tested by Bartlett's test, if the assumptions were met, the data were analyzed by variance using F-test. The difference of median value of treatment will be tested by the Least Significance Difference Test (LSD) at 5% level. The results showed that the treatment of several doses of bio-slurry liquid fertilizer has an effect on the length of cob, while the treatment of some fertilization time has an effect on dry weight variables. However, the treatment of some dose levels and fertilization time of bio-slurry liquid fertilizer has not been able to increase growth and yield. Proper fertilization time does not depend on the dose of bio-slurry liquid fertilizer given in influencing the growth and yield of sweet corn crops.
Respons Empat Varietas Gladiol (Gladiolus hybridus L.) Terhadap Perendaman Benziladenin dalam Meningkatkan Pertumbuhan Tunas dan Produksi Subang0. Tri Dewi Andalasari; Yayuk Nurmiaty; Yohannes C Ginting; Yamatri Zahra
Jurnal Penelitian Pertanian Terapan Vol 19 No 1 (2019)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v19i1.1399

Abstract

Gladiolus is a potential ornamental plant to be widely developed because its high aesthetic value. Generally, gladiolus is propagated vegetatively by using tuber that called corm. There are some problems in gladiolus vegetative propagation, which is corm has a dormancy period and produces only one to two corms for each gladiolus plant. The effort that can be done to solve these problems is to provide benzyladenine to gladiolus corm. This study aims to determine the response of four varieties of gladiolus (Gladiolus hybridus L.) that soak to benzyladenine in increasing the growth of shoot and corm production. This research was conducted in Bandar Lampung in 2017. The treatment was designed factorially (4 x 4) using Randomized Block Design. The first factor was the varieties of gladiolus ie Anisa, Clara, Nabila, and Nurlaela. The second factor was the 100 ppm concentration of benzyladenine in repeating ie first, second, third, and fourth soaking. Data analysis was tested by Least Significant Difference (LSD) test at 5% level. The results showed that (1) from four gladiolus corm varieties, Nabila produced the highest number of shoots at 10,34 shoots, while the variety that produces the highest number of corm was Clara at 5,71 corms, (2) the benzyladenine that used up to four times for soaking the corm resulted the same response in increasing growth of shoot and corm production of four gladiolus varieties, (3) the response of each gladiolus varieties didn’t depend on how many times that benzyladenine used to soak the corm in increasing the growth of shoot and corm production of four gladiolus varieties.
PENGARUH PEMBERIAN DOSIS PUPUK NPK DAN PUPUK PELENGKAP TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN SEDAP MALAM (Polianthes tuberosa L.) Tiara Anggun Puspita; Kushendarto Kushendarto; Tri Dewi Andalasari; Setyo Widagdo
Jurnal Agrotek Tropika Vol 5, No 1 (2017)
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.658 KB) | DOI: 10.23960/jat.v5i1.1842

Abstract

Sedap malam merupakan salah satu tanaman hias yang banyak disukai masyarakat. Bunga sedap malam tergolong bunga potong yang laku di pasaran setelah mawar dan krisan. Untuk meningkatkan produksi bunga sedap malam yaitu dengan memperbaiki pertumbuhan dan kualitas bunga. Perbaikan kualitas bunga sedap malam dapat dilakukan dengan pemberian unsur hara yang cukup dan seimbang. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian dosis pupuk NPK danpupuk pelengkap Plant Catalyst terhadap pertumbuhan dan produksi tanaman sedap malam. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) yang disusun secara faktorial (4x4) dengan setiap satuan percobaan digandakan yaitu pupuk NPK Mutiara (16-16-16) (N) yaitu N 0 (0), N 1 (10 g/tanaman), N 2 (15 g/tanaman), N 3 (20 g/tanaman). Faktor kedua adalah konsentrasi pupuk pelengkap Plant Catalyst (P) yaitu P 0 (0), P 1 (1 g/l), P 2 (1,5 g/l), P 3 (2 g/l). Hasil penelitian menunjukkanbahwa pemberian dosis pupuk NPK dan pupuk Pelengkap Plant Catalyst tidak memberikan pengaruh yang berbeda nyata pada variabel pengamatan vegetatif tanaman sedap malam. Pemberian pupuk NPK dengan dosis 20 g/tanaman memberikan hasil yang terbaik pada variabel pengamatan panjang rangkaian bunga, panjang bunga keseluruhan, diameter tangkai bunga, diameter bunga, dan jumlah kuntum. Pemberian pupuk pelengkap Plant Catalyst 1,5g/l memberikan hasil yang terbaik pada variabel pengamatan panjang bunga keseluruhan, diameter tangkai bunga, diameter bunga, dan jumlah kuntum.
Co-Authors Akari Edy Hidayat Pujisiswanto Kushendarto Kushendarto Setyo Widagdo Tiara Anggun Puspita Vina Oktavia Yamatri Zahra Yayuk Nurmiaty Yohannes C Ginting