Effects of Organic Fertilizer on Growth Performance and Postharvest Quality of Pak Choy (Brassica rapa subsp. chinensis L.)

2021 ◽  
Vol 1 (1) ◽  
pp. 43-50
Author(s):  
Nur Suhaida Mohamad ◽  
Faizah Abu Kassim ◽  
Norhanizan Usaizan ◽  
Azimah Hamidon ◽  
Zahir Shah Safari
Keyword(s):  
Plant Growth ◽  
Growth Performance ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Leaf Length ◽  
Leafy Vegetables ◽  
Chicken Manure ◽  
Postharvest Quality

Long-term use of inorganic fertilizers on leafy vegetables can increase soil acidity, harmful to the environment and leaving bad effects on human health. Organic fertilizer application is one of the safer alternatives with many beneficial effects by supplying nutrients for plant growth, environmental-friendly and producing an optimum quality of vegetables. Different organic amendment such as vermicompost, biochar and microbial compost has different effect on plant growth performance since good bacteria could improve structure of the soil and nutrient absorption. Therefore, this study aims to evaluate the effects of organic fertilizer on the growth performance and postharvest quality. The experimental design during planting was conducted in randomized completely block design with a factorial arrangement of treatmentswhile for postharvest quality study was conducted in completely randomized design. Organic fertilizer of vermicompost (110 g/plant), biochar (100 g/plant), microbial compost (80 g/plant) and chicken manure (37.5 g/plant) were treated on Pak choy two times on day 10 and day 24 after transplant. This research revealed the plant growth including plant height, leaf number and leaf length of Pak choy in all treatments were increased as growing stage increased. However, at the end of growing stage, microbial compost and vermicompost resulted in the highest of growth characteristics. In terms of postharvest quality, microbial compost showed the highest fresh weight and premium quality. This study proved that microbial compost at 80 g/plant exhibited optimum growth performance and the best postharvest quality of Pak choy.

scholarly journals Serapan Hara N, P, K dan Pertumbuhan Tanaman Jagung Pada Berbagai Dosis Pupuk Anorganik dan Organik di Tanah Inceptisol

2021 ◽  
pp. 55-66
Author(s):  
Mulyati Mulyati ◽  
Baharuddin AB ◽  
R Sri Tejo Wulan
Keyword(s):  
Plant Growth ◽  
Nutrient Uptake ◽  
Agronomic Traits ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Organic Fertilizers ◽  
Randomized Block Design ◽  
Two Factors ◽  
Inorganic And Organic

The use of inorganic fertilizers has an important role in increasing plant growth and production. But it also causes various problems such as decreasing soil organic matter, soil acidity, soil degradation, nutrient imbalance and increasing environmental pollution. Therefore, it needs to be balanced with the provision of organic fertilizers. A field experiment was conducted to study the effect of application of various doses of inorganic and organic fertilizers on N, P, K nutrient uptake and maize plant growth. The experimental design used was a randomized block design arranged in a factorial manner consisting of two factors. The first factor is the dose of inorganic fertilizer (A): 0, 150 and 300 kg ha-1 phonska and the second factor is organic fertilizer plus (P): 0, 10, 20 tons ha-1. The two factors were combined and each treatment combination was repeated three times. The data obtained were analyzed by analysis of variance at the 5% level of significance. The results showed that there was no interaction between the application of inorganic and organic fertilizers on the growth and nutrient uptake of N, P and K. However, the application of inorganic and organic fertilizers had a significant effect on all tested agronomic traits except for plant height. Nutrient uptake of N, P and K also increased significantly due to the application of inorganic and organic fertilizers. The balance of inorganic and organic fertilizer application increases the availability of nutrients as well as the uptake of N, P, and K nutrients by maize plants.

PENGARUH ASAM FULVAT TERHADAP PERTUMBUHAN, PRODUKTIVITAS, DAN MUTU RIMPANG JAHE

2020 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
MUHAMAD DJAZULI ◽  
IRENG DARWATI ◽  
ROSITA SMD
Keyword(s):  
Fulvic Acid ◽  
Starch Content ◽  
Block Design ◽  
Organic Fertilizer ◽  
Dry Weight ◽  
Fertilizer Application ◽  
Randomized Block Design ◽  
Application Frequency ◽  
Optimal Effect

Fulvic acid is an extraction product of humus which is very potential for supplement fertilizer and able to reduce either inorganic or organic fertilizer application. The information about fulvic acid application as supplement fertilizer on ginger in Indonesia is still limited. The objective of the study was lo find oul the efect of fulvic acid as supplement fertilizer on the growth, productivity and quality of young ginger. A green house trial was conducted from July lo November 1996. Five levels of fulvic acid concentration, 0, 2.5, 5, 7.5, and 10% were sprayed every week from 4 to 1 5 weeks ater planting (WAP). A randomized block design was used with five replicates. The results indicated that the growth of plant height and number of tiller of ginger increased rapidly al 8 WAP, then il became slowly from 12 lo 1 5 WAP Application 10% of fulvic acid was able to increase vegetative parts 99.6%, fresh and dry weight of rhizome 89 and 125% respectively, and starch content of rhizome 22.6%. To find oul of the optimal effect of fulvic acid on productivity and quality of ginger, a further research using higher level and application frequency of fulvic acid as an extract product from several humus types in Indonesia is needed.

scholarly journals Aplikasi Pupuk Organik Diperkaya Mikrobia Pada Usaha Pembibitan Tanaman

2018 ◽  
Vol 2 (2) ◽  
pp. 44
Author(s):  
Mujiyo Mujiyo ◽  
Sumarno Sumarno ◽  
Suryono Suryono ◽  
Novi Rahmawati Sutopo
Keyword(s):  
Small Business ◽  
Plant Growth ◽  
Soil Nutrients ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Plant Seeds ◽  
Plant Nursery ◽  
Chicken Farm

Micro small business (UKM: in indonesian) "Sejahtera" is a chicken farm that has problems with chicken manure that has not been utilized properly. The farmer group "Bejo Agro Farm" is a plant nursery located in Mojogedang District, Karanganyar Regency. Availability of soil nutrients is one of the determinant factors of the quality of plant seeds. Availability of nutrients for plants can be obtained by applying organic fertilizers. Applications of microbial enriched organic fertilizers can be used as an alternative to maintain plant quality. Microbial enriched organic fertilizers contain several types of microbes that can support plant growth. Organic fertilizer comes from chicken manure coupled with several bio-starter containing beneficial microbes. The organic fertilizer used has been tested for its quality, to determine the content of the nutrient. The technology in the form of microbial enriched organic fertilizer can help "Bejo Agro Farm" to maintain the quality of plant seeds and be able to solve the problems of chicken manure waste of "Sejahtera" chicken farms.

scholarly journals Pengaruh pupuk organik dan varietas terhadap pertumbuhan dan hasil tanaman cabai merah (capsicum annum L.)

2020 ◽  
Vol 5 (2) ◽  
pp. 327-336
Author(s):  
Sahrun Riza ◽  
Erita Hayati ◽  
Ainun Marliah
Keyword(s):  
Plant Height ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Fruit Weight ◽  
Stem Diameter ◽  
Chicken Manure ◽  
Growth And Yield ◽  
Yield Potential ◽  
Potential Yield

Abstrak. Cabai merah merupakan komoditas hortikultural yang termasuk golongan sayuran rempah yang termasuk famili terung-terungan dan sebagai penyedap masakan. Penelitian ini bertujuan untuk melihat pengaruh pemberian jenis pupuk organik terhadap pertumbuhan dan hasil tanaman cabai merah dan untuk melihat pengaruh varietas terhadap pertumbuhan dan hasil tanaman cabai merah serta untuk mengetahui ada tidaknya interaksi antara jenis pupuk organik dan varietas cabai merah. Penelitian ini dilakukan pada bulan Januari sampai dengan bulan Juni 2019. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor yang diteliti terdiri dari dua faktor yaitu pupuk organik dan varietas. Faktor pertama jenis pupuk organik yang terdiri dari  3 taraf yaitu kontrol, pupuk kandang sapi dan pupuk kandang ayam, sedangkan faktor kedua varietas cabai merah yang terdiri dari 3 taraf yaitu Varietas TM-999, varietas Odeng dan varietas Lede Uwe gayo. Hasil penelitian menunjukkan bahwa perlakuan pupuk organik berpengaruh sangat nyata terhadap jumlah buah per tanaman dan berat buah per tanaman serta terdapat pengaruh yang nyata  terhadap jumlah cabang produktif dan potensi hasil ton/ha, namun terdapat pengaruh tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam dan diameter batang umur 15, 30 dan 45 hari setelah tanam. Pemberian pupuk organik pada berat buah per tanaman dan potensi hasil terbaik diperoleh pada pemberian pupuk kandang ayam. Sedangkan perlakuan varietas berpengaruh sangat nyata terhadap jumlah cabang produktif, berat buah per tanaman dan potensi hasil, namun terdapat pengaruh yang tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam, diameter batang umur 15, 30 dan 45 hari setelah tanam dan jumlah buah per tanaman. Jumlah cabang produktif, berat buah per tanaman dan potensi hasil tanaman cabai merah terbaik diperoleh pada penggunaan varietas TM 999. Terdapat interaksi yang sangat nyata antara pupuk organik dengan varietas terhadap jumlah buah per tanaman, berat buah per tanaman dan terdapat interaksi nyata terhadap potensi hasil. Kata kunci : Cabai Merah, Pupuk Organik, VarietasAbstrac. Red chili is a horticultural commodity that belongs to the spice vegetable group and part of the eggplant family that is used as a food flavoring. This study aims to look at the effect of applying organic fertilizer on the growth and yield of red chili plants;to see the effect of varieties on the growth and yield of red chili plants; and to find out whether there is an interaction between types of organic fertilizer and red chili varieties. This study employed factorial randomized block design (RBD) with two factors studied namely organic fertilizer and varieties. The first factor is the type of organic fertilizer consisting of 3 levels, namely control, cow manure and chicken manure, while the second factor is red chili varieties consisting of 3 levels, namely the TM-999 variety, Odeng variety and the Gayo Lede Uwe variety. The results showed that the treatment of organic fertilizer had a very significant effect on the number of productive branches and the potential yield of tons/ha, but there was no significant effect on plant height at ages 15, 30 and 45 days after planting and stem diameter 15, 30 and 45 days after planting. The fertilizer application at the fruit weight per plant and the best potential results obtained in the provision of chicken manure. Whereas, the treatment of varieties has a very significant effect on the number of productive branches, fruit weight per plant and yield potential, but there is no significant effect on plant height 15, 30 and 45 days after planting, stem diameter 15, 30 and 45 days after planting and number of fruits per plant. The number of productive branches, fruit weight per plant and the best yield potential of red chili plants were obtained from the use of TM 999 varieties. There was a very real interaction between organic fertilizer and varieties on the number of fruits per plant; fruit weight per plant; and there was a real interaction with yield potential.Keywords:Red Chili, Organic Fertilizer, Varieties

scholarly journals Aplikasi Beberapa Pupuk Organik tTerhadap Produksi, Kualitas Buah dDan EfisiensiAgronomi Melon di Tanah Gambut

2020 ◽  
Vol 7 (1) ◽  
pp. 33-49
Author(s):  
Pienyani Rosawanti ◽  
Nurul Hidayati ◽  
Fahruddin Arfianto ◽  
Djoko Eko Hadi Susilo
Keyword(s):  
Fruit Quality ◽  
Block Design ◽  
Organic Fertilizer ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Fertilizer Treatment ◽  
Randomized Block Design ◽  
Significant Difference ◽  
Two Factors

This research aims to know the effect interaction of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, effect of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, and the agronomic efficiency of the use of several types and different dosage of organic fertilizers on production of melons on peatlands. This research design was used as a Randomized Block Design (RBD) consists of two factors with 4 replication. The first factor consisted of types of organic fertilizer (P) i.e. chicken manure (PA), guano manure (PG), and cow manure (PS). The second factor consisted of fertilizer dosage (D) i.e. 0 tons ha-1 (without fertilization, called control), D1 = 15 tons ha-1, D2 = 30 tons ha-1 and D3 = 45 tons ha-1. The data obtained by analysis of variance (ANOVA) or F test at a = 5% and 1% levels to determine the effect of treatment was tested further by HSD (honestly significant difference) testat the level of 5%. The result shows that the interaction type of organic fertilizer and the dosage of organic fertilizer treatment significant effect on the weight of the melon. Chicken manure is the best organic fertilizer on the size and quality of the melon. Dosage of 45 tons ha-1 organic fertilizer gave the highest results but it was not significantly different with a dosage of 30 tons ha-1. The use of chicken manure fertilizer of 30 tons ha-1 is more efficient in agronomy in increasing melons yield on peatlands.

scholarly journals Plant Growth and Morphological Characters of Sonchus arvensis L. from Different Chicken Manure Rates and Harvest Intervals with Ratooning Practices

2021 ◽  
Vol 8 (02) ◽  
pp. 60-70
Author(s):  
Maya Melati ◽  
Ahmad Nur Hidayat Gena Ari ◽  
Sandra Arifin Aziz
Keyword(s):  
Plant Growth ◽  
Plant Biomass ◽  
Block Design ◽  
Organic Fertilizer ◽  
Morphological Characters ◽  
Chicken Manure ◽  
Leaf Production ◽  
Harvest Intervals ◽  
Sonchus Arvensis

Sonchus arvensis L., commonly known as perennial sow thistle, field milk thistle, among other names, is a weedy species that has medicinal values. Belongs to the Daisy family (Asteraceae), S. arvensis has a rosette form and it can be harvested more than once. The determination of harvest interval for ratoon of S. arvensis is necessary because ratooning can save time to produce the consecutive plant biomass, but the second harvest must be conducted at the correct time as it will determine the quantity and quality of leaves. As source of herbal medicine, cultivation of S. arvensis with organic fertilizer is preferred, and determination of organic fertilizer rates is also important for ratooning. The purpose of the study was to evaluate the plant growth response and yield with different chicken manure rates and different harvest intervals. The field experiment was conducted at IPB experimental station in Cikarawang, Darmaga Bogor, Indonesia. The study used a randomized complete block design with different manure rates (0, 7, 14, 21 ton.ha-1) and various harvest intervals (6, 8, and 10 weeks after the first harvest) as treatments.  The results showed that for the first harvest, the effect of chicken manure rates was linear almost on all variables. For the ratoon (second harvest), manure rate of 14 ton.ha-1 (for first harvest) added with 4 ton.ha-1 (after first harvest) was enough for leaf production. The results indicate that ratoon should be harvested at 10 weeks after the first harvest to obtain the highest yield. The interaction between manure rates and harvest interval was not significant for growth variables of the second harvest.

scholarly journals Lignite-based Organic Fertilizer Improves Soil Quality and Yield of Rice in Belitang South Sumatera

2019 ◽  
Vol 24 (3) ◽  
pp. 109
Author(s):  
Syafrullah Syafrullah
Keyword(s):  
Soil Quality ◽  
Paddy Soil ◽  
Block Design ◽  
Organic Fertilizer ◽  
Fertilizer Application ◽  
Plant Residue ◽  
Chemical Fertilizers ◽  
Rice Varieties ◽  
Organic C

To achieve food-self sufficiency in Indonesia, it is necessary to apply sustainable agriculture practices to improve soil quality. Most of paddy fields have been applied with chemical fertilizers intensively for more than 40 years without the addition of organic matter.  The purpose of this study was to understand the effects of lignite-based organic fertilizer application on the quality of paddy soil and yield of rice. The study was conducted in April until August 2014 in the irrigated rice fields in Belitang, Ogan Komering Ulu Timur District. The study was arranged in a Factorial Randomized Block Design, with 9 treatment combinations and 3 replicates. The first factor was the types of fertilizers, consisting of recommended chemical fertilizers (250 kg urea ha-1 + 150 kg SP36 ha-1 + 50 kg KCl ha-1), organic fertilizer from plant residue at 5 Mg ha-1,  and lignite-based organic fertilizer (namely Baranik fertilizer) at 0.75 Mg ha-1.  The second factor was rice varieties, consisting of Mentik Wangi, Gogo Aromatik and Ciliwung. The application of Baranik fertilizer at 0.75 Mg ha-1 has improved the quality of paddy soil with the increase of organic-C content from 1.44% to 2.90%. Application of Baranik fertilizer at 0.75 Mg ha-1 has increased the vegetative components and the yield of rice about 7.17 Mg ha-1 compared to the organic fertilizer from plant residue, but the yield is still the same as that in the recomended dosages of chemical fertilizers.  Among the rice varieties, the yield of Ciliwung variety was higher than other varieties, i.e. 7.62 Mg ha-1.  The yield of Gogo Aromatik variety is significantly lower than that of Ciliwung variety.  Baranik organic fertilizer can be used to improve soil fertility for food security purpose.

scholarly journals Effect of Season on Growth, Productivity, and Postharvest Quality of Baby Spinach

HortScience ◽  
2019 ◽  
Vol 54 (5) ◽  
pp. 835-839
Author(s):  
Ambani R. Mudau ◽  
Puffy Soundy ◽  
Hintsa T. Araya ◽  
Fhatuwani N. Mudau
Keyword(s):  
Storage Temperature ◽  
Block Design ◽  
Storage Period ◽  
Dry Weight ◽  
Leaf Length ◽  
Postharvest Quality ◽  
Postharvest Storage ◽  
Different Temperatures ◽  
Different Seasons

Spinach is an annual, cool-season, green leafy vegetable that in temperate areas can be grown year-round. However, different seasons can influence the quality and shelf life of the produce. The objective of this study was to investigate the influence of different seasons on the quality of baby spinach leaves during growing and postharvest storage. The study was initiated in early Nov. 2013 and culminated toward the end of Oct. 2014, then was repeated from Nov. 2014 until Oct. 2015. A 4 × 5 × 3 factorial experiment was laid out in a randomized complete block design with four replicates per treatment. The treatments were arranged as follows. In autumn, winter, spring, and summer, leaves were kept up to 12 d at three different temperatures: 4, 10, and 20 °C. Parameters recorded are weight loss, leaf length, total flavonoids, and antioxidant activity. Results of the study demonstrate that the level of antioxidants in winter remained stable during storage, specifically at 4 °C, followed by autumn and spring. In contrast, the summer season reflected the worse potential of retaining a level of antioxidants compared with the other seasons. On day 12, at a storage temperature of 4 °C, winter maintained 0.55 mg·g–1 dry weight (DW), whereas autumn, spring, and summer had 0.41, 0.40, and 0.11 mg·g–1 DW, respectively. In conclusion, it is recommended that baby spinach growers consider winter, autumn, and spring for growing baby spinach to manage the quality favorably during the postharvest storage period in South Africa.

scholarly journals PENGARUH PUPUK UREA, SP36, DAN KCl TERHADAP PERTUMBUHAN DAN PRODUKSI TEMULAWAK (Curcuma xanthorhiza Roxb)

2020 ◽  
Vol 16 (3) ◽  
pp. 98
Author(s):  
MONO RAHARDJO ◽  
EKWASITA RINI PRIBADI
Keyword(s):  
Plant Growth ◽  
Key Words ◽  
Dry Matter ◽  
Block Design ◽  
Fertilizer Application ◽  
Potassium Uptake ◽  
Active Compounds ◽  
Randomized Block Design ◽  
Growth Production

<p>ABSTRAK</p><p>Penelitian dilakukan di Kebun Percobaan Sukamulya sejakSeptember 2006 sampai Desember 2007. Tujuan penelitian adalah untukmengetahui pengaruh pemberian pupuk urea, SP36, dan KCl terhadappertumbuhan, produksi, dan mutu rimpang temulawak. Perlakuan disusundalam faktorial 3 x 3 yang dilaksanakan dalam rancangan acak kelompokdan diulang 3 kali. Ketiga faktor yang dicoba terdiri atas 3 jenis pupukurea, SP36, dan KCl dengan takaran masing-masing 100, 200, dan 300kg/ha. Jarak tanam yang digunakan adalah 75 cm x 50 cm, denganpopulasi 40 tanaman/plot. Peubah yang diamati adalah, komponenpertumbuhan meliputi akumulasi biomas, produksi rimpang, mutusimplisia (minyak atsiri, bahan aktif kurkuminoid dan xanthorhizol), dankadar hara N, P dan K. Hasil penelitian menunjukkan bahwa pemupukanurea sebanyak 300 kg/ha pada tanah dengan status hara N rendahberpengaruh nyata terhadap peningkatan komponen pertumbuhan tanamantemulawak, biomas, hasil rimpang segar, dan simplisia kering pertanaman.Namun perlakuan interaksi dari tiga faktor pupuk urea, SP36, dan KCldengan masing-masing dosis 100, 200, dan 300 kg/ha tidak berpengaruhnyata terhadap produksi rimpang segar. Mutu simplisia yang dihasilkansudah memenuhi standar MMI  ( DEPKES, RI, 1995. Produksi rimpangsegar berkisar antara 20,23 - 25,46 t/ha. Produksi rimpang segar 20,23 t/hadicapai perlakuan pemupukan urea, SP36, dan KCl masing-masing 100kg/ha, yang menyerap 37,41 kg/ha hara N, 15,30 kg/ha hara P, dan146,11 kg/ha hara K. Produksi rimpang segar 25,46 t/ha dicapai perlakuan300 kg/ha urea, 200 kg/ha SP36 dan 200 kg/ha KCl, yang menyerap193,44 kg/ha hara N, 21,05 kg/ha hara P, dan 221,34 kg/ha hara K.</p><p>Kata kunci : Curcuma xanthorhiza Roxb, produksi, mutu, dan serapanhara</p><p>ABSTRACT</p><p>Effect of urea, SP36, and KCl fertilizers on plant growthand production of java turmeric (Curcuma xanthorrhizaRoxb)</p><p>The experiment was conducted in Sukamulya Experimental Stationfrom September 2006 until December 2007. The objective of the researchwas nitrogen, phosphate, potassium uptake to increase plant growth,production and to find out quality of java turmeric. The experiment wasarranged in factorial randomized block design with three replicates, andurea, SP36, and KCl fertilizer dosages were 100, 200, 300 kg/ha. The plantspacing was 75 cm x 50 cm, population was 40 plant/plot, and plot sizewas 3.75 m x 4 m. The first research was done in 2006 to obtain plantgrowth data and the second one was conducted in 2007 aiming to obtaindata on productivity and quality of rhizomes. Parameters observed wereaccumulation of biomass, rhizomes productivity and quality, absorption ofplant nutrition (N, P and K), active compounds (curcuminoid andxanthorhizol). The result showed that fertilizer application of 300 kg/haurea on the soil low in N content was able to increase growth componentof java turmeric, fresh rhizomes, and dry matter of rhizomes per/plant.Combination of the three application factors of urea, SP36, and KCl withdosages of 100, 200, and 300 kg/ha, respectively, did not affect onrhizomes productivity. The quality of rhizomes have fulfilled MMIstandard. The productivity of rhizome varied from 20.23 – 25.46 t/ha.Application of urea, SP36, and KCl with each dosage of 100 kg/haproduced 20.23 t/ha rhizome, which absorbed as much as 137.41 kg N,15.30 kg P, and 146.11 kg K per ha. Application of urea, SP36, and KCl of300, 200, and 200 kg/ha, respectively, produced 25.46 t/ha rhizome, whichabsorbed as much as 193.44 kg/ha N, 21.05 kg/ha P, and 221.34 kg/ha K.</p><p>Key words : Curcuma xanthorrrhiza Roxb, productivity, quality andnutrien uptake</p>

Effect of Hydroponic and Conventional Production Systems on Plant Growth Performance and Nitrate Content of Green Coral Lettuce (Lactuca sativa var. Crispa)

2021 ◽  
Vol 1 (1) ◽  
pp. 51-56
Author(s):  
Dayang Nur Hidayah Abg Muis ◽  
Azimah Hamidon ◽  
Nor Elliza Tajidin ◽  
Zahir Shah Safari
Keyword(s):  
Plant Growth ◽  
Growth Performance ◽  
Plant Height ◽  
Production Systems ◽  
Leaf Length ◽  
Leafy Vegetables ◽  
Nitrate Content ◽  
Fresh Weight ◽  
Conventional Production ◽  
Number Of Leaves

Overfertilization on leafy vegetables could accumulate high nitrate content. Exceeded recommended limit of nitrate content can cause detrimental effects on the environment and human health, such as methemoglobinemia and stomach cancer. Green coral lettuce (GCL) is a leafy vegetable commonly grown under various production systems. Production system and physiological age have affected the growth and accumulation of nitrate levels in most leafy vegetables. Therefore, this study aims to determine the effects of hydroponic and conventional production on the growth performance and nitrate concentration of GCL at different harvest ages. This research was conducted in a randomized complete block design with a factorial arrangement of treatments. A stagnant hydroponic was prepared using stock A and B complete Hoagland nutrient solutions as liquid fertilizer. A commercial biofertilizer (NPK 8: 8: 8) was applied at the rate of 100 g per plant. Plant growth performance, including plant height, number of leaves, and leaf length, was measured at 7, 14, 21, 28, 31, 34, 41, and 44 days after transplanting (DAT). The fresh weight and nitrate content were measured at 31, 34, 41, and 44 DAT. The results showed hydroponic GCL exhibited higher plant height than conventional GCL. However, both productions were not significantly affected regarding the number of leaves, leaf length, and fresh weight. At 41 and 44 DAT, the hydroponic GCL was markedly higher in nitrate content than conventional. This study found that conventional production was recommended for GCL because lower in nitrate content compared to hydroponic and fair in growth performance.

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