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Journal : Kultivasi

Aplikasi pupuk organik dan N, P, K terhadap pH tanah, P-tersedia, serapan P, dan hasil padi hitam (Oryza sativa L.) pada inceptisol Anni Yuniarti; Eso Solihin; Ayuning Tiara Arief Putri
Kultivasi Vol 19, No 1 (2020): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (166.32 KB) | DOI: 10.24198/kultivasi.v19i1.24563

Abstract

Sari. Padi hitam memiliki khasiat yang baik untuk kesehatan, yang dapat meningkatkan daya tahan tubuh terhadap penyakit, mencegah gangguan fungsi ginjal, mencegah kanker / tumor, dan banyak manfaat lainnya. Dewasa ini, produktivitas padi hitam masih relatif rendah, dengan beberapa penyebabnya adalah degradasi lahan dan ketidakseimbangan nutrisi di tanah. Salah satu ordo tanah yang distribusi secara luas di Indonesia yang dapat digunakan untuk budidaya tanaman adalah Inceptisol. Oleh karena itu, Inceptisols memerlukan penanganan yang tepat, seperti aplikasi pupuk organik dan anorganik yang seimbang. Tujuan dari penelitian ini adalah untuk mengetahui macam pupuk organik dan dosis N, P, K terbaik terhadap pH tanah, P tersedia, serapan P dan bobot gabah kering panen dan gabah kering giling padi hitam (Oryza sativa L.). Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan 10 perlakuan, tiga ulangan. Jenis pupuk organik terdiri dari kompos jerami, pupuk kandang ayam, pupuk kandang sapi, dan pupuk kandang domba dengan dosis 10 t / ha. Pupuk N, P, K yang digunakan terdiri atas dosis 50% dan 100% rekomendasi (Urea 300 kg/ha; TSP 50 kg/ha; KCl 50 kg/ha). Hasil penelitian menunjukkan bahwa aplikasi pupuk kandang ayam + 100% N, P, K rekomendasi memberikan bobot gabah kering giling terbaik pada padi hitam (Oryza sativa L.) menghasilkan 55,40 g / tanaman atau 7,09 t/ ha..Kata kunci: Padi hitam ∙ Pupuk organik ∙ Pupuk N,P,K ∙ Inceptisol ∙ Fosfor Application of organic and N, P, K fertilizer to pH, P-available, P absorption, and black rice yield (Oryza sativa L.) in inceptisol ABSTRACT. Black rice has good advantages for health, which can increase the body's resistance to disease, prevent kidney failure, prevent cancer/tumors, and many other benefits. Today, the productivity of black rice is still relatively low, with several causes being land degradation and imbalance of nutrients in the land. One of the land orders that is widely distributed in Indonesia for plant cultivation is Inceptisols. Therefore, Inceptisols needed a proper handling, such as balanced application of organic and inorganic fertilizers. The aim of this research was to know the best type of organic fertilizer and the best dosage of N,P,K on soil pH, available P, P uptake and yield of black rice (Oryza sativa L.). The experimental design used Randomized Block Design (RBD) with 10 treatments and three replications. The type of organic fertilizer consisted of rice straw compost, chicken manure, cow manure, and sheep manure, with 10 t/ha doses. The N,P,K fertilizer that used has a dosage of 50% and 100% (Urea 300 kg/ha, TSP 50 kg/ha, and KCl 50 kg/ha). The results showed that the application of chicken manure + 100% N,P,K gave the best yield on black rice (Oryza sativa L.) yield of 55.40 g / plant or 7.09 t/haKeywords: Black rice ∙ Organic fertilizer ∙ N,P,K fertilizer ∙ Inceptisols ∙ Phosphorus
Soil nutrient and invertase-producing bacteria relation impact on Cilembu sweet potato (Ipomoea batatas L.) growth: A study based on upland and wetland cultivation in Cilembu village Sumedang district Solihin, Eso; Anwar, Syaiful; Santoso, Dwi Andreas; Nugroho, Budi; Purwono, Purwono; Sudirja, Rija; Maulana, Haris; Kamaluddin, Nadia Nuraniya; Karuniawan, Agung
Kultivasi Vol 22, No 1 (2023): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v22i1.45353

Abstract

The environment is one important factor that must be considered in supporting sweet potato productivity. Environmental factors can be biotic and abiotic, including the availability of nutrients and microbes in the soil. This study aims to identify the nutrient content of the soil in wetland and upland, identify the total invertase microorganisms in wetland and dupland, and identify the relationship between soil nutrients and microorganisms during the growth of Cilembu sweet potato in dry and wetland agroecosystems. This research was conducted on upland and wetland in Cilembu Village, Sumedang Regency. The experimental design used was a single randomized block design (RBD) with six treatments and three replications:  A; Rancing, wetland, B; Biang wetland, C; Mencrang wetland, D; Rancing, uplands, E; Biang, uplands, F; Mencrang, upland. Parameters observed included pH, C-organic, total-N, available-P, exchangeable K, exchangeable Na, exchangeable Ca and exchangeable Mg, CEC, and total invertase-producing bacteria. The results showed that in wetland nutrient content such as N, P, exchangeable Ca,  Mg, Na, CEC, C-organic and pH tended to be more available. K content and abundance of invertase bacteria are more available in upland. The availability of invertase bacteria has a close relationship with the K content. The information generated in this study can be used as a basis for determining an effective location to produce good quality.
Influence of phosphate and boron addition to mixed liquid fertilizer on the growth and yield of red chili cultivated in the subsoil layer Sari, Stefina Liana; Sofyan, Emma Trinurani; Solihin, Eso
Kultivasi Vol 23, No 2 (2024): Jurnal Kultivasi
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/kultivasi.v23i2.53370

Abstract

This study assesses the impact of adding phosphate and boron in a mixed liquid fertilizer (MLF)  on the growth and yield of red chili plants cultivated in a subsoil environment. The experiment was conducted to comprehend how these nutrients affect the performance of red chili plants, particularly when cultivated in less ideal conditions such as subsoil, a remnant of excavation for brick production. The research was carried out at the Ciparanje Garden of the Faculty of Agriculture, Universitas Padjadjaran. The research design employed a Randomized Completely Block Design with the following treatments: A = Control (degraded soil without fertilizer), B = 0% MLF + 1 NPK, C = 0.25% MLF + 1 NPK, D = 0.50% MLF + 1 NPK, E = 0.75% MLF + 1 NPK, F = 1.00% MLF + 1 NPK, G = 0.5% MLF + 3/4 NPK, H = 0.5% MLF + 1/2 NPK, I = 0.5% MLF + 1/4 NPK, J = 0.5% MLF + 0 NPK, and K = 1 NPK in normal soil. The results revealed that the addition of phosphate and boron in MLF significantly influenced the growth and yield of red chili in subsoil conditions. The recommended MLF concentration was 0.75%, alongside the standard NPK dose. These findings provide crucial insights for the development of more efficient and sustainable agricultural practices, especially in challenging soil conditions like subsoil, where nutrient availability can be a determining factor for agricultural success.