Research aimed to study te influence of phosphate roc

Sudadi,

Sumarno,

Widada, Jaka

Research aimed to study the influence of phosphate rock-sulfur (PRS) content and inoculum ratios of biosulfo on P and S uptake and red onion yield on acid (Alfisol) and alkaline (Vertisol) soils.  Two factors evaluated were PRS content (0%, 60%, 80%) and inoculums of A.niger/P.nalgiovensis ratio of biosulfo (0:0, 1:1 and 3:1). As much of 12 kg of soil (Ø 2 mm) mixed thoroughly with biosulfo, basic fertilizer and manure, put into polybag then watering at field capacity moisture content. One bulb of red onion was planted to each polybag and incubated in the green house. The experiments arranged in completely randomized design with three replications. Variables observed included P and S uptake, and onion yield. Data analyzed with F test at 5% level of significant followed with DMRT if any significant influences. The result shows that the increases of PRS content as well as A. niger ratio of biosulfo tend to increase P and S uptake, especially on acid Alfisol.   Highest P and S uptake and onion yield were achieved with treatment combinations of P80I11, P80I31, and P60 I11 for Alfisol,   and  P80 I11,  P60 I11 and P60 I11  for Vertisol respectively

Sudadi

Sumarno

Jaka Widada

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AGRIVITA Journal of Agricultural Science

BIOSULFO FERTILIZER DEVELOPMENT FOR HORTICULTURE CROPS II. THE EFFECT OF PHOSPHATE ROCK CONTENT AND INOCULUM RATIO  OF BIOSULFO ON P AND S UPTAKE AND YIELD OF RED ONION  IN ACID AND ALKALINE SOILS

Sebelas Maret Institutional Repository

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BIOSULFO FERTILIZER DEVELOPMENT FOR HORTICULTURE CROPS II. THE EFFECT OF PHOSPHATE ROCK CONTENT AND INOCULUM RATIO OF BIOSULFO ON P AND S UPTAKE AND YIELD OF RED ONION IN ACID AND ALKALINE SOILS.

Research aimed to study the influence of phosphate rock-sulfur (PRS) content and inoculum ratios of biosulfo on P and S update and red onion yield on acid (Alfisol) and alkaline (Vertisol) soils. two factors wavaluated were PRS content (0%, 60%, 80%) and inoculums of A.niger/ P.nalgiovensis ratio of biosulfo (0:0, 1:! and 3:1). As much of 12 kg of soil (Q 2 mm) mixed throughtly with biasulfo, basic fertilizer and manure, put into polybag then watering at field capacity moisture content. one bulb of red onion was planted to each other polybag and incubated in the green house. the experiment arranged in completely randomized design with three replications. variable observed included p and s uptaake, and enion yield. data analized with f test at 5% level of significant influences. the result shows that the increases of PRS content as well as A.niger ratio of biosulfo tend to increases p and S uptake. especially on acid Alfisol. higest p and s uptake and onion yield were achieved with treatment combination of P80|11,P80|31, and P60|11 for Alfisol, and P80|11, P60|11 andP60|11 for Vertisol respectively

English

BIOSULFO  FERTILIZER DEVELOPMENT  FOR HORTICULTURE  CROPS

II, THE EFFECT OF  PHOSPHATE ROCK CONTENT AND  INOCULUM

RATIO OF BIOSULFO ON P AND S UPTAKE AND  YIELD OF

RED ONION  IN ACID AND ALKALINE  SOILS

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BIOSULFO FERTILIZER DEVELOPMENT FOR HORTICULTURE CROPS II. THE EFFECT OF PHOSPHATE ROCK CONTENT AND INOCULUM RATIO OF BIOSULFO ON P AND S UPTAKE AND YIELD OF RED ONION IN ACID AND ALKALINE SOILS.

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Sebelas Maret Institutional Repository

Sebelas Maret Institutional Repository