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Inoculation of Merapi Indigenous Rhizobacteria as A Substitute Compost for Application in Rice Cultivation on Coastal Sandy Under Drought Stress Sarjiyah, Sarjiyah; Bustamil, Akhmad; Astuti, Agung
PLANTA TROPIKA Vol. 10 No. 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.15646

Abstract

This study aimed to determine the role of the indigenous rhizobacteria from Merapi as a substitute for compost in rice cultivation on coastal sandy land under drought stress. The study was a single-factor experiment, with types and doses of compost as treatments, arranged in a completely randomized design (CRD) consisting of seven treatments and three replications. The seven treatments tested were cow manure compost at doses of 30 and 40 tons/ha, chicken manure compost at doses of 30 and 40 tons/ha, Azolla compost at doses of 20 and 30 tons/ha, and without compost as a control treatment. Each experimental unit consisted of three plants for destructive sampling, three sample plants, and a substitute plant. The application of cow manure compost at a dose of 30 tons/ha to the rice plants inoculated with MB and MD isolates of Merapi indigenous rhizobacteria resulted in the best growth at five weeks after planting, which was not significantly different from that without compost application. This result indicated that the rice plants cv. Segreng Handayani inoculated with Merapi indigenous rhizobacteria, cultivated on coastal sandy soil under drought stress, even without the application of compost, could give the same responses as the plants treated with various types and doses of compost.
Effects of Mycorrhiza Doses and Manure Types on Growth and Yield of Cassava in Gunungkidul Astuti, Agung; Mulyono, Mulyono; Hariyono, Hariyono; Meitasari, Retno
PLANTA TROPIKA Vol. 10 No. 2 (2022)
Publisher : Department of Agrotechnology, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/pt.v10i2.15873

Abstract

Gunungkidul is a production center of cassava (Manihot esculenta Crantz), a carbohydrate source and raw material for food industry. AMF inoculation in cassava plants is known to increase biomass production. However, little studies have been conducted on the response of cassava to mycorrhizal inoculation and organic fertilizer. Therefore, this study was aimed at examining the effects of AMF inoculation and types of manure on the AMF colonization and yield of cassava in Gunungkidul. The research was carried out by planting cassava in Alfisol Gunungkidul arranged in a randomized complete block design with two factors, AMF doses of 25g; 50; and 75g/plant; and types of manure i.e. cow, goat, and poultry manure, for five months period. Rhizosphere soil and root samples were analyzed for AMF colonization and the spores number. The results showed that AMF-infected cassava roots combined with cow or goat manure application produced more spores than poultry manure. AMF infection and manure, thus, significantly resulted in better root proliferation, root forehead weight, tuber diameter, and cassava products, than the absence of both treatments. Cow manure combined with AMF at a dose of 25 g/plant significantly affected the dry weight of cassava roots. This study implies that applying AMF and manure provide a substantial contribution on the growth and production of cassava.
The Effect of Frequency of Stem Wounds Towards The Growth and Yield of Cassava Renek Ma'rifah, Fitriatul; Astuti, Agung; Mulyono, Mulyono
Proceedings of Universitas Muhammadiyah Yogyakarta Graduate Conference Vol. 1 No. 2 (2022): Engaging Youth in Community Development to Strengthen Nation's Welfare
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (238.089 KB)

Abstract

This study was aimed to investigate the effect of the number and frequency of stem wounds towards the growth and yield of cassava Renek. This study was conducted experimentally in the preparation of a single factor RAKL (Complete Randomized Block Design) which consisted of 4 treatments, namely control treatment, frequency of wounding 1 time before planting, frequency of wounding 2 times before planting, and 1.5 BST. and frequency of wounding 3 times before planting cropping, 1.5 BST and 2.5 BST. Observation parameters include the number of mycorrhizal infections in cassava roots, number of spores, root length, root weight, root dry weight, root proliferation, plant height, shoot fresh weight, shoot dry weight, number of leaves, number of tuber plants, tuber length, tuber diameter, tuber weight per plant, and tuber yield. At the age of 5 months, the frequency of wounding 3 times of mycorrhizal cassava Renek only gave a significant difference in the parameters of root length, root weight, and root dry weight. The best number and frequency of wound treatment in 5-month-old mycorrhizal cassava was the frequency of 1 time before planting had a good effect on the parameters of tuber weight per plant (5.09 kg) and tuber yield (50.91 Ton / Ha).
Intermittent Irrigation for Improving Rhizobacteri Population Dynamics and Rooting of Local Rice Varieties Isnawan, Bambang; Astuti, Agung; Abida, Zulfa
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 8 No. 2 (2024)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v8i2.401

Abstract

Intermittent irrigation is one of the rice cultivation technologies developed in Indonesia and the world. This study aims to determine the interaction between superior rice varieties with a watering system and rhizobacteria population dynamics, root development, and rice yield. This research was conducted for four months. The study used experimental methods on land compiled with a Factorial 3x4 Strip-Plot experiment design with a Completely Randomized Block Design (RCBD). Factor I is a watering system consisting of 3 treatments i.e. conventional irrigation, intermittent irrigation ten days of dry 5-day watering, and intermittent irrigation seven days of dry 3-day watering. Factor II is rice varieties consisting of 4 i.e. Cempo Merah, Inpari 23, Sintanur, and Inpari 42. The results showed no interaction between the irrigation system and rice varieties to rhizobacteria populations, rooting, and rice yields. The 7-day drying watering system has a relatively larger population of Rhizobacteria in week 16 and increases the length of the roots than other watering treatments. Intermittent irrigation provides grain weight per clump, which is no different from conventional irrigation. Inpari 23 rice varieties have a population of Rhizobacteria week 16 more and weigh 1000 seeds higher than the varieties Inpari 42. The yield of superior rice varieties Inpari 23, Sintanur, and Inpari 42 is higher than Local Cempo Merah rice varieties. Inpari 23, Sintanur, and Inpari 42 varieties can be cultivated by intermittent irrigation.