Nitrogen fertilizer effects on yield and nitrogen uptake of sorghum and soybean, grown in sole cropping and intercropping systems

Baker C.M. and Blamey F.P.C. (1985) Nitrogen fertilizer effects on yield and nitrogen uptake of sorghum and soybean, grown in sole cropping and intercropping systems. Field Crops Research, 12 C: 233-240. doi:10.1016/0378-4290(85)90071-1


Author Baker C.M.
Blamey F.P.C.
Title Nitrogen fertilizer effects on yield and nitrogen uptake of sorghum and soybean, grown in sole cropping and intercropping systems
Journal name Field Crops Research   Check publisher's open access policy
ISSN 0378-4290
Publication date 1985
Sub-type Article (original research)
DOI 10.1016/0378-4290(85)90071-1
Volume 12
Issue C
Start page 233
End page 240
Total pages 8
Subject 1102 Cardiovascular Medicine and Haematology
1110 Nursing
Abstract With the dissemination of improved cereal genotypes, low soil N fertility has become a significant constraint in many cereal production systems, including that of intercropping. An experiment was conducted in S.E. Queensland to examine the effects of N fertilization (0, 60 and 120 kg N ha-1) on short-season sorghum (Sorghum bicolor (L.) Moench) and soybean (Glycine max (L.) Merrill) growth in sole cropping and intercropping systems. Sorghum grain yield and N uptake increased markedly with N fertilization, responding similarly to applied N in the sole crop and intercrop systems. Applied N increased soybean grain yield and N uptake when grown as a sole crop, but not when grown as an intercrop with sorghum. Intercropping slightly reduced sorghum and soybean N uptake and N yield at each N level. At each N level, intercropping offered a substantial (mean 17%) grain yield advantage over an equivalent area of sole crops. Apparent recovery of applied N was greatest in sole sorghum, and least in sole soybean, which was attributed to considerable substitution of fertilizer N for fixed N2. Apparent recovery of applied N in the intercrop was intermediate between that of the sole crop systems.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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