Iswahyudi Iswahyudi
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Samudra

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Pengaruh Ekstrak Daun Belimbing Wuluh (Averrhoa bilimbi L.) Terhadap Mortalitas Larva Crocidolomia pavonana F. Pada Tanaman Pakcoy (Brassica rapa L.) Boy Riza Juanda; Rezky Apriani; Iswahyudi Iswahyudi
Agrium Vol 20, No 2 (2023)
Publisher : Faculty of Agriculture, Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/agrium.v20i2.11556

Abstract

Crocidolomia pavonana merupakan hama penting yang merusak tanaman pakcoy. Hama ini dapat menurunkan hasil produksi tanaman. Untuk memperbaiki hasil produksi dibutuhkan pengendalian terhadap hama ini dengan menggunakan insektisida nabati dari daun belimbing wuluh. Tujuan penelitian ini untuk mengetahui cara pemberian dan konsentrasi ekstrak daun belimbing wuluh terhadap mortalitas larva      C. pavonana pada tanaman pakcoy, serta interaksi antara keduanya. Metode yang digunakan adalah Rancangan Acak Lengkap Faktorial, yang terdiri dari 2 faktor, yaitu faktor cara pemberian ekstrak daun belimbing wuluh (P) yang terdiri dari 2 taraf yaitu: P1 = Tetes Topikal dan P2 = Celup Pakan serta faktor konsentrasi ekstrak daun belimbing wuluh (K) yang terdiri dari 5 taraf, yaitu:  K0 = Kontrol, K1 = 3,5%, K2 = 5%, K3 = 7,5%, dan K4 = 10%. Hasil Penelitian menunjukkan bahwa cara pemberian celup pakan dengan konsentrasi ekstrak daun belimbing wuluh 10% mampu menyebabkan mortalitas larva sebesar 100% pada 96 Jam Setelah Aplikasi. Ekstrak daun belimbing wuluh dapat digunakan dalam mengendalikan hama C. pavonana.
Soil Fertility Status and The Effect of Organic Fertilizers on Onion Growth (Allium Ascalonicum L) Ahmad Rasyid; Iswahyudi Iswahyudi; Cut Mulyani
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 20 No 2 (2022): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v20i2.2925

Abstract

This study aims to determine the status of soil fertility and the effect of organic fertilizer on the growth of shallot plants. This study used a non-factorial Randomized Block Design (RBD), which consisted of 7 levels, namely: O0: No organic fertilizer (control), O1: chicken manure, O2: cow manure, O3: goat manure, O4: petroganic fertilizer, O5: sheep manure, O6: palm oil and sugarcane waste fertilizer. The observed variables were the physical and chemical properties of the soil as well as the soil fertility status of the study site as well as the height and number of leaves of shallot plants measured at the age of 20, 40 and 60 Days After Planting (DAP). The results showed that the soil fertility status in the study area was included in the very low fertility class. The type of organic fertilizer treatment had a very significant effect on the height and number of leaves of shallot plants at the age of 30 and 45 DAP and had no significant effect on the age of 15 DAP. The best results were obtained in the treatment of giving chicken manure (O1).
Effect of Petrogenic Fertilizer Dosage with Different Seed Sources on the Growth and Production of Onion (Allium ascalonicum L.) Sakinah Padang; Iswahyudi Iswahyudi; Cut Mulyani
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 1 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i1.3462

Abstract

The study aimed to determine the effect of Petroganic fertilizer doses and seed sources on the growth and production of onion plants and to determine the interaction between the two. This study used 2 factorial shelves, petroganic (P) fertilizer dosage consisting of 4 levels, namely P0 = control, P1 = 10 gr/ polybag, P2 = 20 gr/polybag, P3 = 30 gr/ polybag, and different seed source factors consisting of 2 levels, namely B1 = seed TSS varieties Sanren F1 and B2 = seed tubers varieties Bima Brebes. Parameters observed were plant height, number of leaves, number of bulbs per clump, wet weight of bulbs per sample, and per plot. Petroganic fertilizer dose significantly affects plant height and number of leaves at the age of 40 and 60 HST, tuber weight per sample, and per plot. However, no real effect on plant height and number of leaves aged 20 HST, as well as the number of bulbs per clump. The best results were obtained in the P3 treatment. Treatment of seed sources significantly affected the plant height and number of leaves aged 40 and 60 HST, the number of tubers per clump, the wet weight of tubers per sample, and per plot. The best results were obtained in the B2 treatment. The interaction between the two had a significant effect on the parameters of the wet weight of tubers per plot. The best results were obtained in the combination of petroganic P3 fertilizer dosage treatment with B2 seed source.
Effect of Different Varieties and Types of Organic Fertilizers on The Growth and production of Shallots (Allium ascalonicum L.) Maulida Maulida; Iswahyudi Iswahyudi; Cut Mulyani
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 1 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i1.3568

Abstract

This study aims to determine the effect of different varieties and types of organic fertilizer on the growth and production of shallots and to determine the interaction between the two. This study used a factorial randomized block design, which consisted of 2 factors, namely: the varietal difference factor (V) which consisted of 3 levels (V1: Sanren variety, V2: Lokananta variety, V3: Bima Brebes variety). The second factor is the type of organic fertilizer (P), which consists of 3 levels (P1: Bioneensis Fertilizer, P2: Atlantic Fertilizer, P3, Chicken Manure). The variables observed in this study were plant height, number of leaves aged 15, 30, 45 and 60 DAP, number of tubers per sample plant, tuber fresh weight per sample plant and per plot, dry tuber weight of plants per sample and per plot. The results showed that the treatment of different varieties gave the best results in the V? treatment (Bima Brebes variety). The results showed that the best results were obtained from P3 treatment (Chicken Manure). There was no interaction between different shallot varieties and the type of organic fertilizer used for all observed research parameters.