“Theresults indicated that use of moderate irrigation (2919.34 - 3157.88m3/fed./year) and the fertilization program/fed./year (33.33% mineral NPK +33.33% organic NPK + 33.33% mixed mineral ore + bio-fertilizer NPK)followed by (50% organic NPK + 50% mixed mineral ore + bio-fertilizers NPK)exhibited decrease in pH and increased (EC, O.M., available macronutrients(NPK), soil microorganisms content and dehydrogenase activ…” Show full quote
Humic acid at 600 mg kg-1 with 2 weeks flooded and 2 weeks field capacity water management decreased Fe2+ concentration from 1,614 to 180 mg kg-1 compared with continuous flooding without humic acid
continuous flooding and without humic acid applicatione1
Verbatim
e0
“optimal production of rice plants”
e1
“Those treatment decreased Fe2+ concentration from 1,614 to 180 mg kg-1 and increased the dryweight of grain from 5.15 to 16.73 g pot-1 compared to continuous flooding and without humic acid application”
e2
“The best treatment was found at the application of 600 mg kg-1 humic acid extracted from rice straw compost combined with 2 week flooded – 2 weeks field capacity of water management”
“Theresults indicated that use of moderate irrigation (2919.34 - 3157.88m3/fed./year) and the fertilization program/fed./year (33.33% mineral NPK +33.33% organic NPK + 33.33% mixed mineral ore + bio-fertilizer NPK)followed by (50% organic NPK + 50% mixed mineral ore + bio-fertilizers NPK)exhibited decrease in pH and increased (EC, O.M., available macronutrients(NPK), soil microorganisms content and dehydrogenase activ…” Show full quote
“Theresults indicated that use of moderate irrigation (2919.34 - 3157.88m3/fed./year) and the fertilization program/fed./year (33.33% mineral NPK +33.33% organic NPK + 33.33% mixed mineral ore + bio-fertilizer NPK)followed by (50% organic NPK + 50% mixed mineral ore + bio-fertilizers NPK)exhibited decrease in pH and increased (EC, O.M., available macronutrients(NPK), soil microorganisms content and dehydrogenase activ…” Show full quote
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