LP - Agrotechnology

Peningkatan Pertumbuhan Dan Hasil Tanaman (Glycine max (L.) Merill) Menggunakan Teknologi Sonic Bloom

2023-11-08T07:42:07Z

Peningkatan Pertumbuhan Dan Hasil Tanaman (Glycine max (L.) Merill) Menggunakan Teknologi Sonic Bloom Pujiwati, Istirochah; Murwani, Indiyah Penelitian bertujuan untuk mempelajari pengaruh gelombang suara frekuensi tinggi dan konsentrasi pupuk organik cair terhadap perlumbuhan dan hasil tanaman kedelai. Penelitian disusun menggunakan rancangan acak kelompok (RAK) faktorial yang terdiri dai 2 faktor. Faktor pertama frekuensi gelombang suara, terdiri atas tiga level yaitu F1: frekuensi 2000 Hz, F2: frekuensi 4000 Hz dan F3: frekuensi 6000 Hz. Faktor kedua yaitu konsentrasi pupuk organik cair, terdiri atas tiga level yaitu K1: konsentrasi 2 cclTiter, K2: konsentrasi 4 cclliter, K3: konsentrasi 6 ccllitr'r dan diulang 3 kali, ditambah satu perlakuan kontrol. Hasil penelitian menunjukkan terdapat interaksi yang nyata pada pengamatan rata-rata luas daun umur 29 HST dimana kombinasi perlakuan FzK: (frekuensi 4000 hertz dan konsentrasi 6 cclliter) memiliki luas daun tertinggi seperti 406,85 cm2. Jumlah daun terbanyak ditemukan pada perlakuan konsentrasi 2 mUliter dan frekuensi 4000 Hz dengan rata-rata jtmlah daun 5,6 helai dan jumlah bunga terbanyak sebesar 69,7 kuntum. Perlakuan dengan frekuensi 6000 Hz memberikan rata-rata jumlah polong terbanyak yailu 4,7 polong.

Does Different Management and Organic Inputs in Agroforesty System Impact the Changes on Soil Respiration and Microbial Biomass Carbon?

2021-11-13T03:06:23Z

Does Different Management and Organic Inputs in Agroforesty System Impact the Changes on Soil Respiration and Microbial Biomass Carbon? Prayogo, C.; Kusumawati, I.A.; Qurana, Z.; Kurniawan, S.; Arfarita, N. Agroforestry system is assumed to be an alternative system which reduces the negative impact of the forest conversion to agricultural land in term of maintaining soil quality and its fertility. This study was aimed to explore effects of different management on agroforestry system upon soil microbial biomass, soil respiration, and organic matter dynamic and nutrients. This study was conducted at UB Forest from November 2017 to February 2018 by collecting various parameters and soil samples from eight different types of land use. Biomass were measured using allometric equation by collecting tree diameter at the height of 1.3 m. Litter inputs were collected using a litter trap method, while in-situ litter were determined using destructive methods. Soil carbon was examined using Walkley and Black method and POM C. Biplot and CVA multivariate analyses were adopted to determine the impact of different management and organic matter inputs. The result showed that the conversion from old agroforestry system of Pine Coffee (PK3 and PK4) to agriculture practices PS (Pine 40 years and vegetable (cabbage) reduced the organic matter inputs by 40%, litter input by 80%, and total POM C by 40% The highest soil microbial biomass carbon and soil respiration were detected on PK3 plot (pine 35 years with coffee at 5 to 8 years old) which were to about 55.48 mg kg -1 and 4.03 mg, respectively. The reduction on organic matter inputs highly correlated to the level of soil respiration and microbial biomass C. Multivariate analysis can distinguish and clustered the treatments along X and Y axis to about 90%. The best system to provide the greatest input of soil organic input which then affected the highest soil organic carbon and microorganism. However, the consequency of this was the increasing of soil respiration and releasing carbon to the atmosphere [ARCHIVES] Copyright Article from : IOP Conference Series: Earth and Environmental Science

Structure and Composition of Major Arbuscular Mycorrhiza (MA) under Different Farmer Management of Coffee and Pine Agroforestry System

2021-11-11T02:28:13Z

Structure and Composition of Major Arbuscular Mycorrhiza (MA) under Different Farmer Management of Coffee and Pine Agroforestry System Prayogo, Cahyo; Prastyaji, Dimas; Prasetya, Budi; Arfarita, Novi Utilization of Arbuscular Mycorrhiza (MA) as beneficial soil microbes is expected to support nutrient demand for improving crop performance. However, under the agroforestry system that facing a problem on light, water, and nutrients competitions, the role of MA is becoming unclear. The purpose of this research was to examine how far different management in Coffee Pines Agroforestry System (CPAS) affects MA structure and compositions. The relationship between soil parameters (e.g. pH, soil organic C) and MA activities was also being evaluated. The selected plot according to existing management practices were chosen as follows: (1) Low management (LC); (2) High management which then compared to (3) Business As Usual (BAU) plot in which were repeated in triplicate. ANOVA and multivariate analysis were employed to determine the effect of the treatments. The result showed that there were significant differences (p<0.05) in the structure and composition of the MA, in terms of the total number of MA spores and the abundance of Glomus sp. under the coffee tree sampling point, while the lowest number was detected in Gigaspora sp. genera. The more intensive land management resulted in a higher abundance of MA biomass which then leads to increased soil P and uptake-P along with MA infection. [ARCHIVES] Copyright Article From : AGRIVITA Journal of Agricultural Science

Peran Vermikompos terhadap Morfofisiologi Kangkung Hidroganik

2021-11-09T06:50:00Z

Peran Vermikompos terhadap Morfofisiologi Kangkung Hidroganik Putra, A. R. Darmawan; Mardiyani, Siti Asmaniyah; Nurhidayati Since open-field agriculture will face some severe problems in the near future like availability of land and agricultural productivity, an alternative cultivation system, such as soilless cultivation is needed for the sustainability of supply and demand for healthier and safer food. This study aimed to test the effect of vermicompost application method and dosage on growth, yield, and chlorophyll content of water spinach. This experiment used a factorial randomized block design with controls. The first factor was the vermicompost application method, which consisted of three levels, namely solid vermicompost, the combination of solid and liquid vermicompost, liquid vermicompost. The second factor was the vermicompost dosage, which consisted of five levels: 100, 200, 300, 400, and 500g per polybag, compared with control using inorganic fertilizer. The results showed that the vermicompost application method did not significantly affect plant growth and yield. The dosage of 500g in the three different application methods gave significantly higher plant growth compared to control. The fresh weight of water spinach per plant and per polybag in the dosage of 500g showed the highest yield of 13.95g and 122.17g, respectively. The highest chlorophyll content of water spinach was found in solid vermicompost treatment with an application rate of 500g, namely 30.10 µg/ml (chlorophyll A) and 54.79 µg/ml (chlorophyll B). These results indicate that to produce high-quality water spinach in soilless culture systems, it is recommended to use solid vermicompost with an application rate of 500g per polybag. [ARCHIVES] Copyright Article from : Agrotechnology Research Journal