Anaerobic Digestate and On-Farm Compost Application: Effects on Lettuce(Lactuca sativa L.)Crop Production and Soil Properties

2010 ◽  
Vol 18 (3) ◽  
pp. 184-193 ◽  
Author(s):  
F. Montemurro ◽  
D. Ferri ◽  
F. Tittarelli ◽  
S. Canali ◽  
C. Vitti
Keyword(s):  
Soil Properties ◽  
Lactuca Sativa ◽  
Crop Production ◽  
Anaerobic Digestate ◽  
Lactuca Sativa L ◽  
Compost Application ◽  
On Farm

scholarly journals Toxicity Effects of Selected Heavy Metals on Lactuca sativa and Hydra viridissima used for Sustainable Crop Production

2018 ◽  
Vol 7 (3) ◽  
pp. 82
Author(s):  
Lina Maria Caceres Diaz ◽  
Claudia Campos ◽  
Gideon Oron
Keyword(s):  
Heavy Metals ◽  
Acute Toxicity ◽  
Lactuca Sativa ◽  
Toxicity Test ◽  
Crop Production ◽  
Arid Regions ◽  
Toxicity Assessment ◽  
Agricultural Irrigation ◽  
Lactuca Sativa L ◽  
Toxicity Effects

This study examines the prospects for using Hydra viridissima toxicity test 96-h LC50, served as a model invertebrate, Lactuca sativa L. was applied for seeds toxicity test (120-h IC50) and a model plant for an acute toxicity assessment of heavy metals content in water. The heavy metals used to assess the acute toxicity of the water utilized for agricultural irrigation in arid regions includes cadmium (CdCl2.2H2O), chromium (K2Cr2O7), zinc (ZnSO4. 7H2O), and boron (H3BO3). A grading of the substances was conducted, and it was found that the toxicity levels for H. viridissima and L. sativa were, with the least harmful first: B < Cr < Zn < Cd and Zn < B < Cr < Cd, respectively. Results indicate that H. viridissima was a more sensitive indicator of toxicity for all of the evaluated substances. However, L. sativa could also be used successfully to rank toxicants in order of their potential hazards.

scholarly journals Linking Soil Health to Sustainable Crop Production: Dairy Compost Effects on Soil Properties and Sorghum Biomass

2019 ◽  
Vol 11 (13) ◽  
pp. 3552 ◽  
Author(s):  
Pramod Acharya ◽  
Rajan Ghimire ◽  
Youngkoo Cho
Keyword(s):  
Soil Properties ◽  
Biomass Production ◽  
Crop Production ◽  
Nutrient Management ◽  
Plant Biomass ◽  
Soil Health ◽  
Management Plan ◽  
Available Phosphorus ◽  
Forage Production ◽  
Compost Application

Dairy compost is utilized in agricultural fields to supplement nutrients, yet its role in optimizing nutrient supply and health of semiarid soils is not clear. A greenhouse study was conducted over two months to evaluate soil properties and forage sorghum production under various compost rates. The study had six treatments and four replications. Treatments included compost application rates at 6.7 (C1), 13.5 (C2), 20.2 (C3), 26.9 (C4), and 33.6 Mg ha−1 (C5) and a control (C0). Soil samples were analyzed for soil organic carbon (SOC), potentially mineralizable carbon (PMC), total nitrogen (N), inorganic N, potentially mineralizable N (PMN), available phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), and sulfur (S). Plant biomass production and biomass C, N, and lignin contents were also estimated. High compost rates improved soil properties significantly (p < 0.05) indicated by increased SOC, N, P, K, Ca, and cation exchange capacity (CEC). Sorghum biomass production did not increase significantly with compost rate, while shoot N content increased at higher rates of compost. A nutrient management plan that integrates dairy compost application has potential to improve soil health and support sustainable forage production in semiarid regions.

scholarly journals Assessment of morphophysiological characteristics of lettuce Lactuca sativa L. after exposure to simulated space flight conditions

2021 ◽  
Vol 6 (48) ◽  
pp. 35-35
Author(s):  
Elizaveta Kazakova ◽  
Marina Podobed ◽  
Alexander Prazyan ◽  
Daria Babina ◽  
Ekaterina Shesterikova ◽  
...  
Keyword(s):  
Chlorophyll Fluorescence ◽  
Key Words ◽  
Surface Area ◽  
Lactuca Sativa ◽  
Space Flight ◽  
Crop Production ◽  
Proton Irradiation ◽  
Lactuca Sativa L ◽  
Combined Action ◽  
Space Conditions

A number of morphophysiological parameters of the candidate crop Lactuca sativa L. for growing in space after influence of the combined action of proton irradiation and clinostating were assessed. It was found that the effect of simulated space conditions reduces the surface area of leaf blades, the mass of roots and shoots of lettuce plants, was not change the number of true leaves. After 20 days of cultivation of L. sativa after irradiation and clinostating, the values of the parameters of the length of shoots, roots, and chlorophyll fluorescence were at the level of control plants. The results obtained contribute to the development of space crop production. Key words: GROWING PLANTS IN SPACE, SALAD CROPS, SOWED LETTUCE, IRRADIATION, PROTONS, STRESS, CLINOSTAT

scholarly journals Productividad D E Lechuga (Lactuca Sativ A L .) En Acuaponía E Hidroponía

2021 ◽  
Vol 17 (21) ◽  
pp. 283
Author(s):  
Bautista Olivas Ana Laura ◽  
Fernandez David Rene ◽  
Alvarez Chavez Clara Rosalia ◽  
Mexia Sanchez Angel Carlos ◽  
Mendoza Cariño Mayra ◽  
...  
Keyword(s):  
Lactuca Sativa ◽  
Crop Production ◽  
Crop Yields ◽  
Production Systems ◽  
Database Integration ◽  
Systems Methodology ◽  
Significance Level ◽  
Lactuca Sativa L ◽  
Vegetable Farming ◽  
Two Stages

El cambio de uso del suelo con fines agrícolas bajo esquemas de manejo agrícola y uso del agua poco eficientes, originan suelos infértiles. Para el cultivo de hortalizas se estudian técnicas que produzcan altos rendimientos con los menores costos económicos y ambientales. Los objetivos del estudio fueron estimar y comparar el rendimiento de la lechuga (Lactuca sativa L.) en los sistemas productivos acuapónico (SA) e hidropónico (SH). La metodología comprendió dos etapas: el establecimiento de los sistemas productivos tipo Nutrition Film Technique (NFT) y el monitoreo del desarrollo del cultivo en ambos sistemas. Las bases de datos y el tratamiento estadístico se realizaron en el programa Excel de Windows Versión 10. La prueba t de student con un nivel de significancia de 0.05 indicó el peso promedio de las lechugas: 0.056 kg (± 0.005 kg) en el SA, y 0.097 kg (± 0.007 kg) en el SH. El SH generó mayor rendimiento (1.847 kg/m2) que el SA (1.080 kg/m2); lo que se atribuyó a que el SH contó con los nutrientes necesarios desde el inicio del cultivo, por la aplicación de fertilizante. La temperatura alta influyó en el comportamiento de los peces del SA, ya que provocaron menor consumo alimenticio y de aporte de desechos orgánicos al agua que, promovieron una baja cantidad de nutrientes y afectaron la producción y el rendimiento del cultivo. Se recomiendan la generación de conocimiento para complementar los resultados obtenidos, como el gasto hídrico y su comparación con los sistemas de cultivo de lechuga tradicionales. Land use change for agriculture under poor farm management and inefficient water use, produces infertile soils. For green vegetable farming, there are some techniques for the achievement of high crop yields with the lowest economic and environmental costs. The study objectives were to estimate and compare lettuce yields (Lactuca sativa L.) in aquaponic (SA) and hydroponic (SH) production systems. Methodology encompassed two stages: the establishing of a Nutrition Film Technique (NFT) productive system and the monitoring of the crop growing in both systems. Database integration and statistical analyses were performed using Windows Excel version 10. Average lettuce weight using t-test (significance level of 0.05) were 0.056 kg (± 0.005 kg) in SA, y 0.097 kg (± 0.007 kg) in SH. SH reached higher yields (1.847 kg/m2) than SA (1.080 kg/m2); likely due to the fact that SH had all needed nutrients since the beginning of the crop, by applying fertilizer. High temperature influenced fish behavior in SA, observing lower food consumption and organic waste supply to the water, releasing low nutrient load that affected crop production and yield. More studies are recommended in order to deepen the outcomes, such as those including water flow and the comparison with conventional lettuce crop systems.

Pengaruh Jenis dan Konsentrasi Pupuk Organik Cair terhadap Pertumbuhan dan Produksi Tanaman Selada (Lactuca Sativa l.) secara Hidroponik

2017 ◽  
Vol 2 (01) ◽  
pp. 115-127
Author(s):  
Siti Hilalliyah ◽  
Intan Sari ◽  
Zahlul Ikhsan
Keyword(s):  
Lactuca Sativa ◽  
Lactuca Sativa L

Sistem hidroponik memungkinkan sayuran ditanam di daerah yang kurang subur dan daerah sempit yang padat penduduknya. Alasan penerapan teknik hidroponik yang utama adalah karena terbatasnya lahan pertanian yang produktif untuk memenuhi kebutuhan manusia yang semakin banyak tiap tahunnya, sehingga dibutuhkan suatu terobosan baru untuk memecahkan masalah tersebut. Penelitian ini telah dilaksanakan pada bulan November 2015 sampai bulan Januari 2016 yang bertempat di kampus Fakultas Pertanian Jl. Propinsi Kecamatan Tembilahan Hulu Kabupaten Indragiri Hilir Propinsi Riau.Metode penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) pola faktorial yang terdiri dari 2 faktor. Faktor pertama adalah jenis POC (N) yang terdiri dari 3 taraf perlakuan yaitu POC Jus Bumi, POC Bonggol Pisang danPOC Limbah Sayuran. Faktor kedua adalah konsentrasi larutan (K) yang terdiri dari 3 taraf perlakuan yaitu 150 ppm, 200 ppm dan 250 ppm. Parameter pengamatan adalah Tinggi Tanaman , Jumlah Daun , Luas Daun , Diameter Batang, Panjang akar ,Volume Akar, Kadar Air, dan Bobot Hasil.Hasil pengamatan menunjukkan bahwa perlakuan jenis POC jus bumi dengan konsentrasi larutan 150 ppm memberikan pertumbuhan dan produksi terbaik untuk tanaman selada secara hidroponik sistem wick. Perlakuan jenis POC limbah sayuran dengan konsentrasi 250 ppm memberikan pertumbuhan dan produksi terbaik selain POC jus bumi sehingga dapat dijadikan sumber POC alternatif.

KHẢO SÁT DƯ LƯỢNG NITRAT VÀ KIM LOẠI NẶNG (Cu, Pb, Zn) TRONG CÂY RAU XÀ LÁCH (Lactuca sativa L.) TRỒNG Ở PHƯỜNG HƯƠNG LONG - THÀNH PHỐ HUẾ

2015 ◽  
Vol 100 (1) ◽  
Author(s):  
Nguyễn Minh Trí ◽  
Nguyễn Hạnh Trinh ◽  
Nguyễn Thị Hoàng Phương
Keyword(s):  
Lactuca Sativa ◽  
Viet Nam ◽  
Lactuca Sativa L ◽  
Tu 45

Xà lách (Lactuca sativa L.) là một loại rau ăn lá quan trọng có giá trị dinh dưỡng và kinh tế cao. Cây Xà lách có đặc điểm là loại rau ngắn ngày, có thời gian sinh trưởng ngắn khoảng từ 45 - 55 ngày, có thể phát triển tốt trên nhiều loại đất, là loại rau ăn sống được sử dụng rất phổ biến trong bữa ăn hàng ngày của người dân Việt Nam nên nó được trồng quanh năm, do vậy vấn đề về chất lượng lại càng phải được quan tâm nhiều hơn. Bài báo này giới thiệu kết quả phân tích về dư lượng nitrat và các kim loại nặng (Cu, Pb, Zn) trong rau Xà lách vụ Xuân - Hè 2012 - 2013 ở phường Hương Long - thành phố Huế. Kết quả nghiên cứu cho thấy: đất trồng rau Xà lách tại phường Hương Long – thành phố Huế đạt tiêu chuẩn về hàm lượng kim loại nặng (Pb, Zn) theo QCVN 03:2008/BTNMT, nhưng hàm lượng Cu và nitrat là khá cao. Rau Xà lách thành phẩm có dư lượng nitrat cao hơn 1,21% so với quy định và các kim loại nặng (Pb, Zn, Cu) tồn dư trong rau lại ở mức cao và vượt tiêu chuẩn cho phép nhiều lần sẽ ảnh hưởng đến sức khỏe của người sử dụng.

EFEITO DO LIXIVIADO DE VERMICOMPOSTO EM DIFERENTES DILUIÇÕES, COMO BIOFERTILIZANTE PARA A CULTURA DA ALFACE (LACTUCA SATIVA L.)

2018 ◽  
Author(s):  
Ferreira Gabriel Menezes ◽  
Souza Antonio Tassio de Oliveira ◽  
Souza Alisson Silva de ◽  
Gomes Igor Thiago dos Santos ◽  
Cunha Denise de Andrade
Keyword(s):  
Lactuca Sativa ◽  
Lactuca Sativa L
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