USING CHLOROPHYLL METER TO PREDICT SUNFLOWER NITROGEN CONTENT AFTER OLIVE SOLID WASTE APPLICATIONS

2009 ◽  
pp. 163-170
Author(s):  
Y. Kavdir ◽  
R. Ilay ◽  
H. Turhan ◽  
L. Genc ◽  
I. Kavdir ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Solid Waste ◽  
Chlorophyll Meter

scholarly journals Processing Solid Waste of Animal Beef using Bioactivators in Effort to Reduce Environmental Pollution

2021 ◽  
Vol 5 (1) ◽  
pp. 174-184
Author(s):  
Titik Mariyati ◽  
Indasah Indasah
Keyword(s):  
Environmental Pollution ◽  
Nitrogen Content ◽  
Solid Waste ◽  
Waste Treatment ◽  
Skin Diseases ◽  
Liquid Waste ◽  
Organic Fertilizers ◽  
Chemical Laboratory ◽  
Composting Process ◽  
Phosphorus Levels

Cattle waste both in the form of solid and liquid waste that is produced every day if left alone without proper waste treatment, it can cause environmental pollution, namely air, water, and soil pollution. The environment becomes squalid and attracts various animals such as flies and dogs which can carry various diseases such as deare, typhoid, cholera and skin diseases which can spread quickly and smell bad. One of the efforts to overcome environmental pollution around cattle is to carry out a composting process using cow rumen bioactivator. This study aims: (1) to find out whether cow rumen bioactivator can reduce the unpleasant odor caused by cattle waste, (2) find out whether cow rumen bioactivator can accelerate the composting process, (3) determine the effect of bioactivator volume on compost quality, namely nitrogen content. (N-total), Phosphorus levels, and Potassium levels. This study uses qualitative analysis to test odors (H2S gas, CO2 gas, NH3 gas and CH4 gas) which was carried out at the CHEMICAL Laboratory of SMK Kesehatan Bhakti Indonesia Medika Kediri, and quantitative analysis to test Nitrogen levels using a Kjeldahl flask, Phosphorus levels with a visible spectrophotometer. , Potassium levels with AAS conducted at the Laboratory of PTPN X Jengkol Plosoklaten Kediri. This study showed: (1) after the composting process, cattle solid waste did not smell, (2) the composting process took 30 days, (3) the addition of various bioactivators (25 ml, 50 ml, 75 ml, and 100 ml), volume 50 ml is the optimal volume in the composting process with 3 kg of cattle solid waste. From the decomposition results, total nitrogen content was 0.592%, phosphorus content was 0.27%, and potassium content was 0.538%. These levels meet the Quality Standards for organic fertilizers and soil enhancers according to the Regulation of the Minister of Agriculture no. 2/Pert./HK.060/2/2006.

scholarly journals Evaluation of the Use of SPAD-502 Chlorophyll meter for non-destructive estimation of nitrogen status of tea leaf (Camellia sinensis L. Kuntze)

2019 ◽  
Author(s):  
Wahono A. Wahono ◽  
D. Indradewa ◽  
B. H. Sunarminto ◽  
E. Haryono ◽  
D. Prajitno
Keyword(s):  
Nitrogen Content ◽  
Nitrogen Fertilizer ◽  
Nutrient Management ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content ◽  
Nitrogen Status ◽  
Chlorophyll Meter ◽  
Leaf N Content ◽  
Tea Leaf ◽  
Spad Readings

Efficient nutrient management requires estimating factual fertilizer requirements. This study was aimed to test the use of chlorophyll meter SPAD-502 to estimate the nitrogen status of tea maintenance leaf. The test was carried out by correlating the SPAD readings with destructively measured leaf nitrogen content using samples oGbtained from nitrogen fertilizer dosage experiments. Observations were made at 15, 32, 45 and 62 days after the application of N fertilizer treatments. The results showed that the SPAD readings and total nitrogen leaf content correlated significantly with the time of observation. Estimation of leaf N content based on the SPAD readings follows linear line equation y = 0.0311x + 1.5856 with coefficient determinant (R²) = 0.62 significantly at P less than 0.01. It was concluded that SPAD-502 chlorophyll meter is reliable to assess the leaf nitrogen content of tea maintenance leaf and is adequate to predict future nitrogen fertilizer requirements.

Portable Chlorophyll Meter for Indirect Evaluation of Photosynthetic Pigments and Nitrogen Content in Sweet Sorghum

Sugar Tech ◽  
2021 ◽  
Author(s):  
Warlles Domingos Xavier ◽  
Gustavo Castoldi ◽  
Thomas Jefferson Cavalcante ◽  
Carlos Ribeiro Rodrigues ◽  
Polyanna Ribeiro Trindade ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Photosynthetic Pigments ◽  
Sweet Sorghum ◽  
Chlorophyll Meter ◽  
Indirect Evaluation

scholarly journals Evaluation of Heavy Metals Content in Simulated Solid Waste Food Compost

2019 ◽  
Vol 25 (9) ◽  
pp. 62-75
Author(s):  
Zainab Zamil AL-Saedi ◽  
Jathwa Abdul Kareem Ibrahim
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Organic Carbon ◽  
Nitrogen Content ◽  
Solid Waste ◽  
Solid Waste Management ◽  
Composting Process ◽  
Nitrification Index ◽  
Waste Food ◽  
Cu And Zn

Composting is one of the solid waste management (SWM) methods where the organic component decomposed biologically under controlled conditions. In this study, a 0.166 m3 bioreactor tank was designed to compose 59.2Kg of simulated common municipal solid food waste having a bulk density, organic matter, organic carbon, pH, nitrogen content, C/N and nitrification index (NH4-N/ NO3-N) of 536.62 kg/m3, 62.34%, 34.76%, 6.53, 1.86%, 23 and 0.34 respectively. The bioreactor operated aerobically for 30 days, and anaerobically for 70 days, until the end of the composting process. Results proved that the composting process could reduce the mass of the waste by 69%.  Nitrogen content, C/N, nitrification index, NPK, and germination index (GI) were found to be 1.52%, 14.54, 0.31, 1.52%, 1.53%,0.85 % and 85.5% indicating that the obtained compost is stable and mature according to the standards. Twelve heavy metals of Zinc (Zn), Cupper (Cu), Molybdenum (Mo), Zirconium (Zr), Strontium (Sr), Rubidium (Rb), Manganese (Mn), Scandium (Sc), Iron (Fe), Titanium (Ti), Calcium (Ca) and Potassium (K) were detected by using Niton (XRF) device. Results of Cu and Zn were within the limits of the standards, while the rest were considered acceptable as standards did not restrict them.  

scholarly journals Chlorophyll meter reading and total nitrogen content applied as topdressing in parts of the crambe plant

2016 ◽  
Vol 15 (2) ◽  
pp. 45-49 ◽  
Author(s):  
Claudia Mascarello Ana ◽  
Roque Benetoli da Silva Tiago ◽  
Tom eacute Gouveia Beatriz ◽  
Bernardi Daiane ◽  
Secco Deonir ◽  
...  
Keyword(s):  
Nitrogen Content ◽  
Total Nitrogen ◽  
Total Nitrogen Content ◽  
Chlorophyll Meter
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