Effects of Nitrogen Fertilizer Rates and Soybean Residue Management on Nitrate Nitrogen in Sorghum-Soybean Intercropping System

Autor:	J. M. R. Semoka, Balthazar M. Msanya, S. J. Kebeney, D. K. Chemei, W. K. Ng'etich
Rok vydání:	2015
Předmět:	biology Randomized block design food and beverages chemistry.chemical_element Intercropping General Medicine engineering.material Sorghum biology.organism_classification Nitrogen chemistry.chemical_compound Agronomy chemistry Nitrate engineering Fertilizer Leaching (agriculture) Subsoil
Zdroj:	International Journal of Plant & Soil Science. 4:212-229
ISSN:	2320-7035
DOI:	10.9734/ijpss/2015/12744
Popis:	An experiment was carried out in Busia County, Kenya at Emalomba (N 00°25 ′28.8 ″ E 034°15 ′ 51.9 ″), Nambale District to assess the effects of nitrogen fertilizer rates and legume management options on nitrate nitrogen (NO 3-N) under intercropping system. Six soybean residue management options were considered: Sole sorghum, sorghum + soybean left to maturity, sorghum + soybean mulched, sorghum + soybean incorporated, sorghum + soybean exsitu and sorghum + soybean exsitu and plot tilled. Three levels of nitrogen (0kg N ha -1 , 40kg N ha -1 , and 80kg N ha -1 as urea were applied as top-dress and treatments arranged in randomized complete block design. Soil NO 3-N was significantly high (P
Databáze:	OpenAIRE
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