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Adinda Putri Amanda
Universitas Perjuangan Tasikmalaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Social Sciences Veterinary

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Effect of NPK Dose (16:16:16) on Growth and Yield of Cayenne Chili (Capsicum frutescens L.) in Tasikmalaya Adinda Putri Amanda; Muhammad Agus Mulyana; Aulia Wahyuningtyas
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5561

Abstract

Cayenne pepper (Capsicum annum L.) is one type of chili that has high demand in Tasikmalaya. To fulfill the consumption, cayenne pepper production is needed to be added. This study helps to determine the best dose of NPK fertilizer that can support the growth yield of cayenne pepper, especially in Tasikmalaya. The research was conducted in experimental field of Agriculture Faculty Universitas Perjuangan Tasikmalaya from November 2022 until February 2023. Experimental design used a randomized block degisn of single factor with six treatments and three replications. The treatments consist of no NPK fertilizer, ( ¼ , ½ , ¾ , 1 and 1 ¼ ) doses of NPK fertilizer.  The results showed that NPK fertilizer had an affect on plant hight with 15.6 cm (3 WAP), 20.4 cm (4 WAP), 24,5 (5 WAP), 27,5 (6 WAP) and 29.5 cm (7 WAP).  The highest cumulative yield of cayenne pepper from  1st until 3th harvests with fruit weight plant-1 was the 1 dose NPK treatment of 358,08 g plant-1.
The Effectiveness of Taro Compost Fertilizer on Soil pH, Growth and Yield of Pak Choy (Brassica rapa L.) in Tasikmalaya Adinda Putri Amanda; R. Arif Malik Ramadhan
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.6155

Abstract

Lack of awereness about the use of agriculture waste in increasing soil fertility leading to high use of inorganic fertilizer. Continuous use of inorganic fertilizer can reduce soil fertility in the future. This research aims to determine the impact of providing taro compost fertilizer on soil pH, growth and yield of pak choy In Tasikmalaya. This research was carried out in experimental field of Agriculture Faculty, Universitas Perjuangan Tasikmalaya from October until November 2023. Experimental design used a randomized block design of one factor with six treatments and three replications. The treatments consist of without taro compost fertilizer, 100, 150, 200, 250 and 300 g/polybag taro compost fertilizer. Reseach results show taro compost fertilizer can increase plant height,  fresh weight of the plant, plant root length,  fresh weight of roots and plant canopy weight. The best treatment was 300 g/polybag with plant height 16,8 cm, fresh weight of plant 55,63 g, plant root length 15,83 cm, fresh weight of roots 8,63 g, and plant canopy weight 47 g compared to control treatment without taro compost fertilizer. However, addition various doses taro compost fertilizer hasn’t effect for soil pH. The conclution of this research is that giving various doses of compost fertilizer can increase the growth and yield of pak choy in Tasikmalaya.
Inventarisasi Serangga pada Tanaman Padi (Oryza sativa L.) di Kecamatan Widasari Kabupaten Indramayu Jawa Barat Mochamad Lurie Alma’sum; R. Arif Malik Ramadhan; Adinda Putri Amanda
JURNAL TRITON Vol 17 No 1 (2026): JURNAL TRITON
Publisher : Politeknik Pembangunan Pertanian Manokwari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47687/jt.v17i1.1649

Abstract

Kebutuhan pangan terhadap komoditas padi terus meningkat sehingga mendorong upaya peningkatan produksi. Namun, keberadaan serangga, khususnya jenis hama, masih menjadi salah satu kendala dalam budidaya padi. Penelitian ini bertujuan untuk mengetahui tingkat keragaman, dominansi, dan peranan serangga pada ekosistem pertanaman padi. Penelitian dilaksanakan pada fase generatif tanaman, yakni pada November 2024 hingga Januari 2025, di areal persawahan Desa Bangkaloa, Kecamatan Widasari, Kabupaten Indramayu, Jawa Barat. Penelitian ini bersifat deskriptif observasional dengan metode purposive sampling. Pengambilan data dilakukan selama 14 hari menggunakan perangkap yellow trap dan light trap yang dipasang pada enam titik pengamatan dengan jarak antarperangkap 15 meter. Serangga yang terperangkap diidentifikasi berdasarkan morfologi tubuh untuk menentukan jenis, peranan ekologis, serta nilai indeks keragaman Shannon-Wiener dan dominansi Simpson. Sebanyak 19.209 ekor serangga berhasil dikumpulkan, terdiri atas 1.060 ekor dari yellow trap dan 18.149 ekor dari light trap. Serangga yang ditemukan diklasifikasikan sebagai predator, hama, polinator, dan dekomposer. Jenis yang paling dominan pada yellow trap adalah hama, sedangkan pada light trap didominasi oleh 16 spesies predator dan 16 spesies hama. Nilai indeks keragaman sebesar H’ = 1,364 (yellow trap) dan H’ = 1,763 (light trap), termasuk kategori sedang, sedangkan indeks dominansi sebesar C = 0,322 dan C = 0,240 menunjukkan dominansi rendah. Keragaman serangga yang tinggi diduga dipengaruhi oleh variasi vegetasi sekitar dan rendahnya intensitas penggunaan pestisida sintetik.
Impact of NPK Briquette Fertilizer on the Growth and Nitrogen Absorption of Tomato Adinda Putri Amanda; R. Arif Malik Ramdahan; Selvy Isnaeni; Rofi Syaepul Alim
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i2.10999

Abstract

The use of appropriate fertilizer is the main key to fulfilling the nutritional needs of plants and environmental sustainability. The appropriate fertilizer dosage will increase the amount of nutrients absorbed by plants, especially tomato plants, and can enhance the optimization of growth and yield, as well as reduce soil damage. This study aims to determine the impact of the addition of NPK briquette fertilizer on plant nutrient absorption and tomato plant growth. This research was conducted at the Screen House of the Agricultural Agrotechnology Study Program, Faculty of Agriculture, Tasikmalaya University of Struggle. Nutrient absorption analysis was conducted at the Soil Chemistry Laboratory, Faculty of Agriculture, Siliwangi University. This research method used a Completely Randomized Design (CRD) with four treatments, including 1) Control / without the addition of NPK briquette fertilizer, 2) 4.5 g dose of NPK briquette, 3) 6 g dose of NPK briquette, and 4) 7.5 g dose of NPK briquette. The results showed that the application of NPK briquette fertilizer at doses of 4.5 and 7.5 g affected the fresh weight of the shoots, total plant fresh weight, total nitrogen content, and nitrogen uptake of the plant. Furthermore, the application of NPK briquette fertilizer on plant height, stem diameter, root wet weight, and crown dry weight did not have a significant effect.
Co-Authors Aulia Wahyuningtyas Mochamad Lurie Alma’sum Muhammad Agus Mulyana R. Arif Malik Ramadhan R. Arif Malik Ramdahan Rofi Syaepul Alim Selvy Isnaeni