FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W592850804> ?p ?o ?g. }

• W592850804 abstract "Lettuce produced in the desert typically shows large yield responses to N fertilization. However, concern about the potential threat of nitrate -N to ground water has prompted additional studies aimed at developing improved N management practices. Field experiments were conducted between 1992 and 1994 to evaluate the response of iceberg lettuce to N rate and N management practice. The use of controlled release N sources (CR19 were compared to a soluble Nfertilizer applied preplant (PP), and a soluble Nfertilizer applied in split sidedress applications (SD). Rates ofNfertilizer application ranged from 0 to 300 kg ha'. Lettuce generally showed significant responses to N rate and N management practice. However, response to management practice varied by site season. When conditions for N losses were high, SD and CRN management strategies were superior. However, in other site seasons SD management sometimes resulted in inferior head quality and marketable yield when compared other management strategies. Data averaged over six -site seasons shows improved yield and quality to CRN management strategies compared to PP and SD strategies. Although the controlled release fertilizers used in these experiments cost three times more the conventional soluble sources used, preliminary analysis shows the use of CRN strategies would sometimes be economically favorable. Introduction A large portion of the leafy salad vegetables produced in the United States during the winter months are grown in the low desert region of southern Arizona and southern California Relatively large areas are also under production in the adjacent States of Sonora and Baja, Mexico. The area of land utilized to produce winter vegetables has increased over the past 10 years. For example, in Yuma County, Arizona alone, vegetables harvested from 13,000 hectares in 1980 had a farm gate value of approximately 63 million dollars. By 1990, vegetables produced on 26,000 hectares had a farm gate value exceeding 130 million dollars. Nitrogen is the nutrient most limiting to crop production in this region. Because of rigid produce quality standards enforced by the market, lettuce receives appreciable amounts of N fertilizer for optimal yield and quality. There is concern that N fertilization of vegetables in Arizona may be contributing excess amounts of nitrate to ground water (State of Arizona Revised Statutes, 1987). A recent survey indicated that Arizona ranked third among the fifty states in the percentage of wells testing above the EPA standard of 10 ppm nitrate -N (Fedkiw, 1991). The Arizona Legislature has recently mandated the implementation of Best Management Practices (BMP's) by Arizona growers to reduce the potential risk of N fertilization to groundwater (State of Arizona Revised Statutes, Arizona Environmental Quality Act, 1987). These practices generally involve timing, amounts, and placement of N and irrigation water application (Doerge et al. 1991). The use of slow release N fertilizer sources is another promising option." @default.
• W592850804 created "2016-06-24" @default.
• W592850804 creator A5032220440 @default.
• W592850804 date "1997-10-01" @default.
• W592850804 modified "2023-09-23" @default.
• W592850804 title "Response of Desert Lettuce to N Rate and N Management Practice" @default.
• W592850804 cites W2041412880 @default.
• W592850804 cites W2340014748 @default.
• W592850804 cites W2515039479 @default.
• W592850804 hasPublicationYear "1997" @default.
• W592850804 type Work @default.
• W592850804 sameAs 592850804 @default.
• W592850804 citedByCount "0" @default.
• W592850804 crossrefType "journal-article" @default.
• W592850804 hasAuthorship W592850804A5032220440 @default.
• W592850804 hasConcept C105462344 @default.
• W592850804 hasConcept C118518473 @default.
• W592850804 hasConcept C134121241 @default.
• W592850804 hasConcept C137660486 @default.
• W592850804 hasConcept C144133560 @default.
• W592850804 hasConcept C178550888 @default.
• W592850804 hasConcept C18903297 @default.
• W592850804 hasConcept C191897082 @default.
• W592850804 hasConcept C192562407 @default.
• W592850804 hasConcept C205649164 @default.
• W592850804 hasConcept C2988054608 @default.
• W592850804 hasConcept C33070731 @default.
• W592850804 hasConcept C37621935 @default.
• W592850804 hasConcept C39432304 @default.
• W592850804 hasConcept C6557445 @default.
• W592850804 hasConcept C86803240 @default.
• W592850804 hasConceptScore W592850804C105462344 @default.
• W592850804 hasConceptScore W592850804C118518473 @default.
• W592850804 hasConceptScore W592850804C134121241 @default.
• W592850804 hasConceptScore W592850804C137660486 @default.
• W592850804 hasConceptScore W592850804C144133560 @default.
• W592850804 hasConceptScore W592850804C178550888 @default.
• W592850804 hasConceptScore W592850804C18903297 @default.
• W592850804 hasConceptScore W592850804C191897082 @default.
• W592850804 hasConceptScore W592850804C192562407 @default.
• W592850804 hasConceptScore W592850804C205649164 @default.
• W592850804 hasConceptScore W592850804C2988054608 @default.
• W592850804 hasConceptScore W592850804C33070731 @default.
• W592850804 hasConceptScore W592850804C37621935 @default.
• W592850804 hasConceptScore W592850804C39432304 @default.
• W592850804 hasConceptScore W592850804C6557445 @default.
• W592850804 hasConceptScore W592850804C86803240 @default.
• W592850804 hasLocation W5928508041 @default.
• W592850804 hasOpenAccess W592850804 @default.
• W592850804 hasPrimaryLocation W5928508041 @default.
• W592850804 hasRelatedWork W120647795 @default.
• W592850804 hasRelatedWork W145737877 @default.
• W592850804 hasRelatedWork W1598588421 @default.
• W592850804 hasRelatedWork W182254792 @default.
• W592850804 hasRelatedWork W25609969 @default.
• W592850804 hasRelatedWork W563887832 @default.
• W592850804 hasRelatedWork W571000981 @default.
• W592850804 hasRelatedWork W596636723 @default.
• W592850804 hasRelatedWork W611391412 @default.
• W592850804 hasRelatedWork W624484205 @default.
• W592850804 hasRelatedWork W647817670 @default.
• W592850804 hasRelatedWork W654132267 @default.
• W592850804 hasRelatedWork W747176606 @default.
• W592850804 hasRelatedWork W756116753 @default.
• W592850804 hasRelatedWork W780498890 @default.
• W592850804 hasRelatedWork W791077138 @default.
• W592850804 hasRelatedWork W792315842 @default.
• W592850804 hasRelatedWork W795343092 @default.
• W592850804 hasRelatedWork W832736548 @default.
• W592850804 hasRelatedWork W839457744 @default.
• W592850804 isParatext "false" @default.
• W592850804 isRetracted "false" @default.
• W592850804 magId "592850804" @default.
• W592850804 workType "article" @default.