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All Journal Planta Tropika Asian Journal of Agriculture Jurnal Kridatama Sains dan Teknologi BERNAS: Jurnal Pengabdian Kepada Masyarakat Journal of Earth Kingdom
Setyaningrum, Desy
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Journal : Planta Tropika

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Effects of Water Clover Density and Submerged NPK Fertilizer on Rice Production Budiastuti, Maria Theresia Sri; Supriyono, Supriyono; Rahayu, Muji; Setyaningrum, Desy; Septin, Latiffah Indriana
PLANTA TROPIKA Vol 12, No 2 (2024)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v12i2.19275

Abstract

Water clover is an important weed that causes a decrease in rice yields by 15-42%. This study examined the effects of water clover density andNPK fertilizer application on rice yields. This study was arranged in a complete randomized block design with two factors. The first factor was water clover density with three levels, consisting of no water clover, one water clover, and two water clover. The second factor was the application of NPK, which was applied to the surface, submerged in 3, 6, and 9 cm—performed with three replications. Water clover density affected the number of rice panicles, the number of rice grains per panicle, the weight of 100 seeds, rice biomass, and water clover biomass. The application of submerged NPK affected rice biomass. The application of NPK on the surface reduced the highest rice biomass. Two water clovers per rice plant reduced the number of rice panicles by 39% compared to without weeds. Rice biomass decreased by 40% and 50% at weed density of one and two water clover weeds per rice plant, respectively. The higher the density of clover weeds, the higher the decline in harvest yields and the higher the biomass of clover weeds.
Antagonism of Nitrogen Fertilizer and Rhizobium on Growth, Nodulation and Yield Of Peanuts (Arachis hypogaea L.) on Acid Soil Setyaningrum, Desy; Supriyono, Supriyono; Putri, Riza Noermala
PLANTA TROPIKA Vol. 13 No. 1 (2025)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v13i1.23242

Abstract

Acid soil is widely available in Indonesia and is suboptimal, so yields are low. The research examines the effect of antagonism and nitrogen fertilizer on peanuts' growth, nodulation, and yield in sour planting. This study used a factorial complete randomized block design with two factors. The first factor is the dose of Nitrogen fertilizer with four levels: 0, 50, 100, 150 kg.ha-1. The second factor is the source of rhizobium with three levels: without rhizobium, legin rhizobium dose ten g.kg-1 seed, and rhizobium from peanut plantations. They were repeated three times. Nitrogen 50 kg.ha-1 with the source of used peanut rhizobium showed the highest plant height, 15.73 cm. The combination of 100 kg.ha-1 of nitrogen with a source of used peanut rhizobium showed the highest number of plant leaves, namely 675.33 leaves. A nitrogen dose of 50kg.ha-1  produced the highest effective number of nodules and nodules, namely 363.00 and 19.33 nodules. The optimum nitrogen fertilizer dose is 44 kg.ha-1 for nodule growth. 50 kg.ha-1  nitrogen dose produced the highest number of pods and seed weight, namely 48.67 pods and 407.79 g of seeds. Nitrogen fertilizer at the correct dose can increase peanuts' growth, nodulation, and yield in acid soil. However, a dose that is too high may cause antagonism with the nodulation process and reduced yield.
Co-Authors Ari Prasetyo Arista, Nor Isnaeni Dwi Budiastuti, Maria Theresia Sri Didi Suryadi Hantari, Dimar Hardian Ningsih, Hardian Ida Rumia Manurung Ilham Akbar, Hammar Muji Rahayu Nurafian, Dimas Asyarif Nurhidayati, Febry Nurmalasari, Aprilia Ike P, Anditya Gilang Rizky Pambudi, Ganjar Paryanto, Edi Pradana, Anditya Gilang Rizky Putri, Riza Noermala Septin, Latiffah Indriana Subagio Saputro, Wahyu Suhita, Cahyaningtyas Putri Suprihatin, Dewi Nawang SUPRIYONO Supriyono Supriyono Zainal Arifin