Mineral Nutrition
Mineral Nutrition
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DOI:
10.5772/17571
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发表时间:
2019-03
期刊:
影响因子:
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通讯作者:
Vlado Kovacevic;Aleksandra Sudaric;M. Antunović
中科院分区:
文献类型:
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作者:
Vlado Kovacevic;Aleksandra Sudaric;M. Antunović
Seventy trials evaluated preplant broadcast and banded P or K fertilization (35 P trials and 35 K trials). Replicated, complete block designs were used. Foliar and soil P or K fertilization increased (P < 0.05) yield in 20 trials. Foliar fertilization increased oil concentration in one trial and protein in one trial but decreased protein in two trials. Phosphorus fertilization increased oil concentration in two trials and protein in five trials but decreased oil in five trials and protein in two trials. Potassium fertilization increased oil in four trials and protein in two trials but decreased oil in two trials and protein in two trials. Total oil and protein production responses to fertilization tended to follow yield responses. Fertilization increased oil production in 20 trials and protein production in 13 trials. of cultivars Nada, Ika, Lika Tisa foliar fertilization (FF) Epsom salt (MgSO .7H 2 O; 5% w/v solution L/ha) Osijek eutric cambisol. The fertilization applied standard fertilization designations FF FF as a control (standard fertilization). FF R1 soybean cultivars in relation to the response to phosphorus (P) levels in nutrient solution. P uptake and use efficiency were estimated by the variables: shoot and root dry matter (DM) yield, P-concentrations and contents in plant parts and P-efficiency index (EI). The experiment was conducted in a greenhouse, during 1999, at Campinas, State of São Brazil. The experimental design consisted of randomized complete blocks, arranged in split-plots, with three replications. The main plots were the P levels in the nutrient solution (64.5; 129; 258 and 516 mmol L -1 ), and the subplots were the twenty-nine soybean cultivars, grouped according days to maturity. Multivariate analysis showed high among the variables shoot-DM, total-DM and shoot P-concentration and P-efficiency index (EI). Cultivars were classified in efficient-responsive (ER)¾ IAC-1, IAC-2, IAC-4, IAC-5, IAC-6, IAC-9 , Sta. Rosa and UFV-1 ; efficient-non-responsive (ENR) ¾ IAC-7 , IAC-11, IAC-15, S. Carlos and Cristalina ; inefficient-responsive (IR) ¾ IAC-8, IAC-10, IAC-14, Bossier and Foscarin and inefficient-non-responsive (INR) ¾ IAC-12, IAC-13, IAC-16, IAC-17, IAC-18, IAC-19, IAC-20, IAC-22, , IAS-5 and BR-4. The efficient-responsive cultivars showed highest for and total DM and EI, P-concentrations. suggests expected useful for and