Agrofarm: Jurnal Agroteknologi

INTENSITAS SERANGAN DAN PERSENTASE KERUSAKAN TANAMAN JERUK TERSERANG CVPD (Citrus Vein Phloem Degeneration) DI KABUPATEN KARANGASEM

I Made Asta Gunawan, I Gusti Ayu Diah Yuniti, Putu Lasmi Yuliyanthi Sapanca — Wed, 01 May 2024 00:00:00 +0800

Citrus are a local fruit that is widely available on the market. The quality of citrus fruit can be influenced by various factors, including attacks by Citrus Vein Phloem Degeneration (CVPD). CVPD is a disease of citrus plants, known as citrus greening, yellow shoot, leaf mottle (Philippines), likubin or decline (Taiwan), citrus dieback (India), blotchy-mottle or mottling disease (Africa); with the international name huanglongbing (China). CVPD disease is classified as one of the important diseases in citrus plants which has developed widely and is the main obstacle to efforts to develop and increase orange production in Bali. PCR analysis to detect the presence of CVPD disease is carried out using specific primers from 16S rDNA. Based on the results of observing symptoms in Karangasem Regency, the percentage of damage due to CVPD ranges from 61% to 87%. The average percentage of citrus plants showing symptoms of CVPD attack was 72.67%, the lowest percentage was experienced by tangerines and the highest was shown by Selayar oranges (87%).

PENGARUH PEMBERIAN PUPUK ORGANIK KOTORAN SAPI TERHADAP PERTUMBUHAN DAN HASIL TANAMAN BAWANG MERAH (Allium ascalonicum L)

Wed, 01 May 2024 00:00:00 +0800

The title of this research is “the effect of organic cow dung fertilizer on the growth and yield of shallot (Allium ascanolicum L). The purpose of this study was to determine the effect of the use of organic cow dung fertilizer and the best dose in the use of organic cow dung fertilizer on onion planting media. This research was conducted in Kesiman Village, East Denpasar District, Denpasar City. This research was conducted over a period of three months, starting from January 22 to March 25, 2021. To test the effect of giving organic cow dung fertilizer using the Randomized Block Design (RAK) method with six treatments, namely treatment (P0) = without giving organic manure fertilizer cattle, (P1) = 5 tons/ha organic cow dung, (P2) = 10 tons/ha organic cow dung, (P3) = 15 tons/ha organic cow dung, (P4) = 20 tons/ha fertilizer organic cow dung, (P5) = 25 tons/ha organic cow dung. Each treatment was repeated four times so that the total number of treatments became 24. The results of statistical analysis showed that the application of organic cow dung fertilizer on shallot plants had a significant effect on all parameters observed, except for the parameters of plant height and leaf fresh weight. The results showed that the application of organic cow manure 20 tons/ha (P4) was able to give the best results on the fresh weight of tubers, namely 66.68 g. And the oven-dry weight of tubers was 39.37 g.

PENGARUH PEMBERIAN BIOURINE SAPI PADA SISTEM HIDROPONIK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KANGKUNG DARAT

Wed, 01 May 2024 00:00:00 +0800

This study aims to determine the effect of giving different cow biourine on the hydroponic system to get the best growth and yield of land kangkung plants. The design used in this study was a randomized block design (RAK). With 6 treatments of giving cow biourine, K1: cow biourine giving 100 ml/1 liter of water, K2: giving 200 ml/1 liter, K3: giving 300 ml/1 liter, K4: given 400 ml/1 liter, K5: given 500 ml/1 liter and K6: given 600 ml/1 liter of water. With 4 replications and 24 trials. The results of the research on the effect of giving cow biourine on growth parameters and yields of land kangkung in a hydroponic system showed a very significant effect on all parameters. The conclusion of this study was that the highest yield was obtained by giving biourine 300 ml/1 liter of water such as the highest plant height (K3 = 45.80 cm), the highest number of leaves (K3 = 15.00 pieces), leaf area (K3=102.25 cm), total wet weight of plants (K3=40.03 g) and oven-dry weight of plants (K3=2.19 g). giving biorine 300 ml/1 liter of water is the right way to get the best yield of land kangkung in a hydroponic system compared to giving 100 ml/1 liter of water; administration of 200 ml/1 liter of water; administration of 400 ml/1 liter of water; administration of 500 ml/1 liter of water; administration of 600 ml / 1 liter of water.

PENGARUH BEBERAPA JENIS PUPUK KANDANG TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PAKCOY (Brassca Rapa L.)

Wed, 01 May 2024 00:00:00 +0800

The plant below has enough nutrition to promote bodily health. Plants has considerable commercialvalue and prosects to support the efforts of increasing farmer income sources of increased employment opportunities, agribusiness development, increased nutrition in the community. The purpose of this study is 1). To know the effect of certain types of manure on the growth and yield of plant pakcoy 2). To find out which manure provides the best growth and plant output. As for the benefits of this study being 1). It can increase the knowledge of the researcher related to the use of serval typesof manure on the growth and yield of plant 2). Could add to a researcher’s knowledge regarding the use of some types of manure for growth and plant producted. The study was conducted from March 29 to May 27, 2021. The study uses the random group’s (RAK) method of design with 4 kinds of treats (KA) chiken manure 5 tons/ha, (KB) pig manure 5 tons/ha, (KK) goat manure 5 tons/ha, (KS) of cow manure 5 tons/ha. With every treatment repeated 6 times so that the number of treats becomes 24. In the presentation of certain types of manure for the growth and output of the plants plants. Bovine manure 5 tons/ha provides the best growth and effect on all the observable parameters: plant height (cm), number of leaves (baldes), leaf area (cm), root length (cm), total fresh weight (g), and dry weight of the total plant (g

PENGARUH MEDIA TANAM TERHADAP VIABILITAS DAN PERTUMBUHAN BENIH PEPAYA CALIFORNIA (Carica papaya L.)

Wed, 01 May 2024 00:00:00 +0800

The purpose of this study was to determine the effect of planting media and comparison of appropriate planting media on the viability and growth of California papaya (Carica papaya L.) seeds. This research used a Randomized Block Design (RAK) with one factor comparison of planting media with 5 level of treatments, namely (P0) 12 kg planting media soil with no sand, treatment (P1) planting media of 12 kg of sand with no soil, treatment (P2) planting media of 6 kg of soil and 6 kg of sand, treatment (P3) planting media of 8 kg of soil and 4 kg sand, treatment (P4) planting media of 4 kg of soil and 8 kg of sand, and each treatment was repeated 5 times to obtain 25 treatments. Planting media had a significant to very significant effect on the parameters of fresh weight of roots but gave a significant effect on parameters of growth speed, plant height, the number of leaves, fresh weight above the soil, oven-dry weight above the soil, and oven-dry weight of roots. Planting media had very significant effect on the viability of papaya seeds by producing the fastest growing speed in the P3 treatment (10,96 dap). Planting media treatment 8 kg of the soil and 4 kg of sands with composition 2:1 (P3) gave the highest yield of fresh weight above the soil of 16.60 (g), oven-dry weight above the soil of 2.00 (g) and oven-dry weight of roots of 0,70 (g).