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Field response to P and K fertilizers of Lupinus albus cv. Kiev and L. angustifolius cv. Unicrop
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: V.D. Wassermann --- Department of Agriculture,A field trial is described, in which the response of Lupinus albus and L. angustifolius to three levels of P and five of K was measured. The P level of the soil was moderate, but the K content was extremely... -
Effects of plant density and row spacing on Lupiniis albus cv. Kiev
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: V.D. Wassermann --- Department of Agriculture, Republic of South AfricaTwo field trials in which the effects of plant density and row spacing on L. albus cv. Kiev were studied, are described. One trial was carried out on dryland and the Other under irrigation. Plant densities ranging from c. 20... -
An analysis of yield components of Lupinus albus L.
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: J. A.M. van der Mey --- , Republic of South Africa J. Middel --- , Republic of South Africa Amelia Me Donald --- , Republic of South AfricaLupinus albus or sweet white lupin is a crop producing its seed yield in succeeding orders of racemes on the plant. All combinations of 18 yield components of five cultivars grown in 11 environments were correlated with each other. An... -
Residual effects of lupins in two lupin/maize fodder production systems
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H.L. Grobbelaar --- , Republic of South Africa V.D. Wassermann --- , Republic of South Africa B.E. Eisenberg --- , Republic of South AfricaThe residual effects of three lupin species, whose tops were either removed or ploughed in, on a following maize crop were compared with the response of maize, not preceded by lupins, to N fertilizer in field trials over two seasons... -
Winter cover crops effects on soil strength, infiltration and water retention in a sandy loam Oakleaf soil in Eastern Cape, South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: HA Mupambwa --- Department of Agronomy, South Africa IIC Wakindiki --- Department of Agronomy, South AfricaThere is substantial evidence that cover crops increase soil fertility and plant nutrition but the few studies concerning soil physical properties are conflicting. This study determined the effects of monocultures of vetch (Vicia dasycarpa L.), lupin (Lupinus angustifolius L.), oats...