scholarly journals Determination of Optimal Irrigation Scheduling for Coffee (Coffee Arabica L.) at Gera, South West of Ethiopia

AGROINTEK ◽  
2017 ◽  
Vol 11 (1) ◽  
pp. 1
Author(s):  
A Ita Juwita ◽  
Arnida Mustafa ◽  
Risna Tamrin

<span class="fontstyle0">MOL (Mikro Organisme Lokal) is the result of local material decomposition with<br />fermentation method. MOL contains macro and micro nutrients and microbial decomposers.<br />The smaller coffee peel that will fermented, the faster MOL can be formed. To accelerate<br />decomposition in MOL solution, it can be added food source of bacteria such as coconut water<br />and brown sugar.<br />The purpose of this study was to study the process of making MOL from coffee peel, to<br />analyze the content of nitrogen, phosphor, and potassium of MOL of coffee peel and to<br />determine the effect of fermentation time on nitrogen, phosphor, and potassium contents of<br />MOL that resulted.<br />This study was conducted with 4 (four) treatments, week 1, 2, 3 and 4 and 1 factor and<br />using 2 times replicate. The parameter of testing used for making coffee peel as local<br />microorganism are MOL volume, nitrogen, phosphor and potassium contents.<br />The result of study showed that the highest mol volume obtained in week 4 of 8.5 ml and<br />the lowest in week 1 of 5 ml. They were obtained from 500 g coffee peel. Determination of<br />nitogen, phosphorus and potassium as a macro nutrients has been conducted. The result showed<br />that the highest nitrogen was found to be 0,0039% in week 1, 3 and 4 and the lowest in week 2<br />with percentage 0.034 %. Determine of phosphorus showed that the highest phosphor was<br />obtained in week 2 wtih percentage 0.033 % and the lowest in week 4 of 0.018%, and the result<br />of potassium analyze, the highest obtained in week 2 of 0.035 % and the lowest in week 4 of<br />0.014%</span>


2007 ◽  
Vol 26 (-1) ◽  
pp. 35-38 ◽  
Author(s):  
Grzegorz Poręba ◽  
Andrzej Bluszcz

Determination of the Initial137Cs Fallout on the Areas Contaminated by Chernobyl FalloutThe fallout radioisotope137Cs is widely used to study rates and patterns of soil redistribution. This method requires the knowledge about the initial fallout of cesium in the study area. This paper describes the method of establishing the initial fallout of cesium for a study area which is contaminated by Chernobyl fallout. The study was carried out on the loess area near the Ujazd village (South-West Poland). The137Cs activities for reference soil cores varied from 4.41(24) kBq/m2to 5.97(26) kBq/m2. The average value of the reference inventory of137Cs for the study area is 5.23(15) kBq/m2. The calculated contribution of the Chernobyl137Cs fallout in the total cesium is equal 69%. Moreover the annual values of the137Cs fallout based on the precipitation data were calculated and presented. This study provides the method of calculating the137Cs fallout connected with the nuclear weapon testing based on the precipitation data. Moreover, this study also indicated that the spatial variability on the highly contaminated by Chernobyl cesium study area is small (RSD about 10%) and thus it is possible to use the cesium method to study soil redistribution.


2005 ◽  
Vol 24 (2) ◽  
pp. 77-84 ◽  
Author(s):  
F. Orgaz ◽  
L. Testi ◽  
F.J. Villalobos ◽  
E. Fereres

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