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Growth and nitrogen yield of Leucaena/maize mixed culture as affected by salt stress and gypsum
Author(s) -
Helal H. Mohamed,
Ragab Mohamed
Publication year - 1995
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19951580127
Subject(s) - leucaena , leucaena leucocephala , monoculture , agronomy , nutrient , gypsum , nitrogen , yield (engineering) , crop , chemistry , biology , materials science , ecology , organic chemistry , paleontology , metallurgy
Leucaena leucocephala is a leguminous, deep rooting tree, increasingly utilized in “Low Input” mixed cultures under arid conditions to reduce mineral N requirements and to improve nutrient cycling. This work was carried out to evaluate the growth and N yield of Leucaena and Maize in sand culture with low (0,6 mM) nitrogen supply under saline conditions (NaCl; NaCl + CaCl 2 ; NaCl + CaSO 4 ). While the low N nutrient solution failed to sustain maize growth in monoculture, both Leucaena and maize grew well in mixed culture with considerable N yields suggesting significant transfer of N from Leucaena to maize. NaCl depressed the uptake of Ca and S and reduced growth and N yields of both crop species. CaSO 4 counteracted partly the NaCl‐effects.