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Fertilizer and Salty Water Effects on Phaseolus 1
Author(s) -
Wagenet R. J.,
Rodriguez R. R.,
Campbell W. F.,
Turner D. L.
Publication year - 1983
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1983.00021962007500020002x
Subject(s) - irrigation , phaseolus , agronomy , salinity , saline water , environmental science , fertilizer , soil salinity , soil water , greenhouse , yield (engineering) , dry matter , nutrient , chemistry , biology , soil science , ecology , materials science , metallurgy , organic chemistry
The response of legumes such as Phaseolus to adverse salt or water regimes is relatively unstudied as a function of soil nutrient status. Greenhouse studies, involving interactive effects on snap bean ( P. vulgaris L.) yield of three levels of irrigation water salinity, three frequencies of irrigation water application, two levels of N applied in the irrigation water, and seven levels of P and K fertilization, were conducted to determine if the adverse effects of saline conditions or water stress on Phaseolus could be overcome by enhanced fertility status and/or improved saline water management on an Argixeroll. Dry matter and bean yields were reduced with decreasing irrigation frequency (2 to 8 days) and increasing salinity of irrigation water (0.5 to 8.0 mmho/cm). Percentage yield decrements were measured for both salt and irrigation regimes. Yield increases were noted for all fertilizer treatments so long as salinity did not become too high (8 mmho/cm). Plant N content and root weight were shown to be responsive to irrigation frequency and salinity, but not to fertilizer form. Nitrogen applied in the irrigation water produced increased yield across all treatment in one set of experiments where greenhouse conditions were hot, dry, and of high potential evapotranspirational demand, No N effect was measured in a second series of experiments with low potential ET.