Fertilization Economy in Organic Lettuce Production

Čabilovski, Ranko; Manojlović, Maja; Bogdanović, Darinka; Rodić, Vesna; Bavec, Martina

doi:10.1080/10440046.2011.606491

Cited by 10 publications

(5 citation statements)

References 16 publications

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“…Cabilovski et al. (2011) showed that DSM and FPM were suitable soil amendments for lettuce production due to high content of relatively easily mineralizable N. Goss et al. (2013) showed a rapid N mineralization from DSM at 30 and 57% after 8 and 12 wk of incubation, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Soybean meal (DSM), and URE produced significantly higher head fresh yields than DCM reflecting on high N availability from BLM, DSM, and URE (Supplemental Table S2; Table 3) (Burnett et al, 2016;Hartz & Johnstone, 2006). Cabilovski et al (2011) showed that DSM and FPM were suitable soil amendments for lettuce production due to high content of relatively easily mineralizable N. Goss et al (2013) showed a rapid N mineralization from DSM at 30 and 57% after 8 and 12 wk of incubation, respectively. Lettuce DW was similar among all sources at 60 kg N ha −1 but was different at 120 and 180 kg N ha −1 rates.…”

Section: Lettuce Yieldmentioning

confidence: 99%

“…Milled seeds of grain legumes and organic fertilizers of industrially processed plants like soybean meal (SBM) and forage pea meal (FPM), can be used as fertilizers in the production of organic lettuce (Stadler et al, 2006). Cabilovski et al (2011) showed that total lettuce yield with SBM was at 46 Mg ha −1 averaged over years and was not significantly different among other sources of organic fertilizers such as FM and FPM. The use of legume seeds as an organic N fertilizer can improve soil fertility, while providing appropriate plant nutrition such as P and K. It has been shown that lettuce yield can range between 20 and 60 Mg ha −1 depending on the various agricultural practices (Bavec et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

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Influence of nitrogen source and rate on lettuce yield and quality

et al. 2022

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Organic fertilizers are significantly lower in N content than chemical fertilizers, yet they can offer opportunities for efficient N utilization in lettuce (Lactuca sativa L.) production. A 2-yr split-split plot trial was conducted in the growing seasons of 2018 and 2019 at South Deerfield, MA, to evaluate the effect of source and rate of N fertilizers on yield, and quality of two lettuce cultivars. Nitrogen sources including blood meal (BLM), dehulled soybean meal (DSM), dehydrated cow manure (DCM), and urea (URE) were the main plots. Nitrogen application rates of 0, 60, 120, and 180 kg N ha -1 were subplots and two lettuce cultivars with different morphological phenotypes of iceberg ('Mighty Joe') and leaf lettuce ('Bergam's Green') were sub-subplots. Quadratic model explained lettuce yield response to N fertilizer rate, regardless of cultivar and N source. Among all N sources, DCM resulted in the least total N, nitrate-N, ammonium-N, and the lowest fresh lettuce yield (24.0 Mg ha -1 ) compared with URE (30.1 Mg ha -1 ), DSM (30.7 Mg ha -1 ) and BLM (28.7 Mg ha -1 ).Lettuce N requirement at maximum yield was 157.7, 171.4, 112.5, and 191.7 kg ha -1 for BLM, DSM, DCM, and URE, respectively. An increase in N application rate increased total N, nitrate-N, and ammonium-N but decreased agronomic efficiency and apparent N recovery. Incidence of lettuce tipburn and head decay was cultivar specific and was not influenced by N source. We concluded that DSM could be used as an organic fertilizer source that provides N similar to that of URE for lettuce production.

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Section: Resultsmentioning

confidence: 99%

Section: Lettuce Yieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of nitrogen source and rate on lettuce yield and quality

et al. 2022

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“…Salata je jedna od glavnih kultura u zaštićenom prostoru (Li i Kubota, 2009), ali i na otvorenom polju (Ilić et al, 2017). Proizvodnja se može organizirati na parcelama različitih veličina zbog kratke vegetacije, a tehnologija proizvodnje je jednostavna (Cabilovski et al, 2011). Koristi se gotovo cijele godine zbog postojanja varijeteta koji se mogu uspješno proizvoditi tijekom različitih sezona (Zdravković et al, 2014).…”

Section: Uvodunclassified

Utjecaj malčiranja na kontrolu korova i agronomska svojstva salate

et al. 2020

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Istraživanja su imala za cilj odrediti značaj utjecaja zastiranja tla različitim vrstama malča na kontrolu korova, prinos i kvalitetu dvije sorte salate (Lactuca sativa var. capitata) ‘Mafalda’ i ‘Bataille. Primjena zastiranja se odražava na povećanje temperature tla, Ispod crne polietilenske folije temperature tla je bila za 2˚С viša u usporedbi s temperaturom ispod bijelo/crne folije i agrotekstila, i za 3-5˚С u odnosu na zastiranje organskim malčem (karton, slama, piljevina, kompost) i kontrolu (ne malčirano tlo). U suzbijanju korovnih vrsta, polietilenske folije su pokazale mnogo veću učinkovitost (95,1-97,8 %) u usporedbi s organskim malčem. Najveća prisutnost korova bila je na malču sa slamom (46 biljaka/m²) u usporedbi s kontrolom (23 biljaka/m²). Pri malčiranju kompostom prinos je bio značajno do vrlo značajno veći (‘Bataille’- 4,64 kg/m² ; Mafalda’ 4,98 kg/m²) u odnosu na ostale tretmane. Malčiranje slamom kod sorte ‘Bataille’ doprinijelo je smanjenom prinosu (2,80 kg/m²). Malčiranje kompostom i crnom polietilenskom folijom utječe na značajno povećanje mase po biljci i indeks lisne površine, kao osnovnih parametara prinosa. Sorta ‘Mafalda’ je u uvjetima zastiranja pokazala veću otpornost na fiziološke poremećaje u usporedbi sa sortom ‘Bataille’.

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“…On the other hand, adopting cover crops may potentially reduce farm income if cover crops interfere with other attractive crops (Snapp et al, 2005). Thus, time or market constraints and the need to intensively farm high value land may limit their use (Cabilovski et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Artichoke (Cynara scolymus L.) as cash-cover crop in an organic vegetable system

Lenzi

Baldi

Tesi

2015

AAS

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In organic vegetable systems green manure crops play an important role as a nitrogen source, but they cover the soil for several months without producing a direct income. Globe artichoke (Cynara scolymus L.) provides both heads to be harvested and particularly abundant plant residues to be possibly incorporated into the soil, so it may play a double role of cash and cover crop. This paper describes an on-farm study in which seed-propagated artichoke, cultivated as an annual crop, preceded zucchini squash and lettuce cultivated in sequence within a vegetable organic system. Artichoke produced about 7 t ha -1 of saleable heads and left, after harvest, 50.3 t ha -1 of fresh biomass usable as green manure. Zucchini squash and lettuce following artichoke showed a significant increase in yield when artichoke residues were incorporated into the soil. Furthermore, a residual positive effect of green manure on soil fertility was detected after lettuce harvest.Key words: organic vegetables, globe artichoke, cover crop, cash crop, green manure, nitrogen IZVLEČEK ARTIČOKA (Cynara scolymus L.) KOT PRODAJNO ZANIMIVA VRTNINA V EKOLOŠKI PRIDELAVI ZELENJAVEZeleno gnojenje ima pomebno vlogo pri ekološki pridelavi zelenjave kot vir dušika, a je problem v tem, da rastline namenjene temu zasedajo prostor v kolobarju več mesecev brez neposrednega dohodka. Artičoka (Cynara scolymus L.) daje oboje, tržni pridelek v obliki koškov in veliko organskih ostankov, ki se lahko zaorjejo kot zeleno gnojilo, torej igra dvojno vlogo kot tržna in pokrovna kultura. Prispevek opisuje vzorčno raziskavo kmetije, na kateri pridelujejo iz semen vzgojeno artičok kot enoletno kulturo v ekološkem kolobarju pridelovanja zelenjave za bučkami in vrtno solato. Artičoka je dala okrog 7 t ha -1 tržnih koškov in po pobiranju pustila na polju 50.3 t ha -1 sveže biomase, ki je uporabna kot podor. Bučke in vrtna solata, ki so v kolobarju sledile artičoki, so dale značilno večji pridelek, kadar so se ostanki artičoke vdelali v tla. Pozitivni učinek zelenega gnojenja na rodovitnost tal je bil ugotovljen še po pobiranju pridelka vrtne solate.

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Fertilization Economy in Organic Lettuce Production

Cited by 10 publications

References 16 publications

Influence of nitrogen source and rate on lettuce yield and quality

Influence of nitrogen source and rate on lettuce yield and quality

Utjecaj malčiranja na kontrolu korova i agronomska svojstva salate

Artichoke (Cynara scolymus L.) as cash-cover crop in an organic vegetable system

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