Tien Turmuktini
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APPLICATION OF BIOAMELIORANT AND BIOFERTILIZERS TO INCREASE THE SOIL HEALTH AND RICE PRODUCTIVITY Simarmata, Tualar; Hersanti, .; Turmuktini, Tien; Fitriatin, Betty N.; Setiawati, Mieke R.; Purwanto, .
HAYATI Journal of Biosciences Vol. 23 No. 4 (2016): October 2016
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.97 KB) | DOI: 10.4308/hjb.23.4.181

Abstract

The major rice intensity of diseases in Indonesia was increased significantly and has caused a yield loss of up to 20?30%. The experiments had been conducted to investigate the effect of bioameliorant or composted straw (CS) combined with consortia of biofertilizers (CB) and biocontrol agent to restore the soil health and promote the induced systemic resistance (ISR) for increasing the rice productivity. The experiment arranged as randomized block design consisted of 12 treatments (0, 2.5, 5.0 and 7.5 ton of CS per ha combined with 400 g of CB and 200 g inoculant of CB + 200 g inoculant of Trichoderma sp and was provided with three replications. The experimental results revealed that application of 2.5?7.5 ton per ha of bioameliorant combined with 400 g per ha of CB and 400 g Trichoderma sp has increased the ISR and enhanced the rice productivity significantly. The brown spot, sheath rice blightand bacterial leaf blight diseases were reduced from 16.7% to 3.3?8.0%, 20% to 4?10%, 24% to 2.7?4.7% and 20.7% to 8?14.0%, respectively at 7 weeks after transplanting. In addition, the rice grain yield was increased from about 7.1 ton ha?1 to 7.9?10.1 ton per ha.
Pengaruh Aplikasi Pupuk Hayati Mikroba Pelarut Fosfat dalam Meningkatkan Kandungan P tanah , Pertumbuhan dan Hasil Jagung pada Ultisols Fitriatin, Betty Natalie; Rahardiyan, Aristyo; Turmuktini, Tien
SoilREns Vol 14, No 2 (2016)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (512.22 KB) | DOI: 10.24198/soilrens.v14i2.11033

Abstract

Marginal soils have problems of low availability of nutrients, especially phosphorus. Phosphate solubilizing microbes can produce organic acid that dissolve P in the soil. Futhermore, the PSM also produce extracellular enzymes asa phosphatase that catalyze mineralization of organic P become inorganic P. Phosphate solubilizing bacteria (Pseudomonas mallei and Pseudomonas cepacea) and phosphate solubilizing fungi (Penicillium sp. and Aspergillus sp) is selected based on the ability of dissolving P and the production of growth regulators. Research at this stage aims to determine the biological fertilizer application techniques (PSB and PSF) as well as different types of P fertilizers to improve soil P available, growth and yield of maize. Field experiment on Ultisol Jatinangor implemented using a randomized block design (RBD) to test how applications PSM plus (giving 1, 2 and 3 applications) as well as the type of fertilizer P (SP-36 and rock phosphate). The results showed that the application of PSM can improve soil P-available growth and yield of maize. Application of PSM biological fertilizer could reduce the need for fertilizer P by 50%. PSM application once the application (early planting) with SP-36 dose 50% can increase content of soil P (P-available), and yield of maize on Ultisols.Keywords : maize, phosphate solubilizing microbes, Ultisols
Kontribusi Pupuk Hayati dan Pupuk Anorganik untuk Meningkatkan Pertumbuhan dan Hasil Tanaman Padi Gogo pada Ultisols Jatinangor Fitriatin, Betty Natalie; Nabila, Muthia Erwina; Turmuktini, Tien; Sofyan, Emma Trinurani; Yuniarti, Anni
soilrens Vol 17, No 1 (2019)
Publisher : Fakultas Pertanian Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.517 KB) | DOI: 10.24198/soilrens.v17i1.23216

Abstract

Ultisols have low soil fertility problems. Beneficial microbes such as biofertilizers could improve soil fertility and the productivity of Ultisols sustainability.  The purpose of this research was to study the contribution of biofertilizers and NPK fertilizers to increase growth and yield of upland rice on Utisols. This experiment used a Randomized Block Design (RBD) in factorial pattern, consisting of  two factors with three replications. The first factor consisted of biofertilizer, which were ; without biofertilizer, biofertilizer consortia A (Pseudomonas mallei, P. cepaceae, Aspergillus niger and Penicillium sp., Azotobacter  chroococum, Azospirillum sp.) biofertilizer consortia B (Azotobacter choroococum, A. viilandii, Azospirillum, Pseudomonas cepaceae, Penicillium and Acitenobacter) and biofertizer consortia A+B. The second factor were NPK fertilizers with four levels ( 100%, 75%, 50% and 25% dosage of recomendation). The results showed that the application of  biofertilizer consortia increased growth of upland rice on Ultisols Jatinangor