scholarly journals Variability of harvest time of vegetable at different four altitudes based on heat unit analysis

2021 ◽  
Vol 648 (1) ◽  
pp. 012071
Author(s):  
Suciantini ◽  
A Pramudia
Keyword(s):  
Harvest Time ◽  
Heat Unit ◽  
Unit Analysis

scholarly journals Menghitung Waktu Panen Tanaman Bawang Merah Berbasis Heat Unit pada Pemberian Pupuk Organik di Tanah Gambut

2016 ◽  
Vol 16 (1) ◽  
pp. 47-56
Author(s):  
Djoko Eko Hadi Susilo
Keyword(s):  
Organic Fertilizer ◽  
Peat Soil ◽  
Daily Temperature ◽  
Harvest Time ◽  
Onion Plant ◽  
Heat Unit ◽  
Heating Unit ◽  
Chicken Feces ◽  
The University ◽  
The Given

Determining of the harvest of onion in the peat soil can be done by using physiological harvest criteria, but calculating the appropriate of harvest time can support the quality of harvesting of the onion plant. This study was conducted by using polybags in research and experiment gardens of the Faculty of Agriculture and Forestry of the University of Muhammadiyah Palangkaraya from April to June in 2016. The given fertilization was an organic fertilizer in peat soil by using stall fertilizer like chicken feces with dosages of 15-30 tons ha-1 (PK) and bokashi of stall fertilizer of chicken feces with a dosage of 2-5 tons ha-1 (BK). The observation was done to the calculation of daily temperature (�C), the average of daily temperature (�C), and the unit of heat (heat unit) (�C day) as long as the cultivation of onion plant. The results showed that the harvest time that appropriate to the harvest physiological criteria in the treatment of BK at the age of 57 days after planting is relatively accurate and appropriate because it has a heating unit for 947,17oC day, and the harvest time that appropriate to the harvest physiological criteria of PK treatment at the age of 59 days after planting is relatively late because it has a heating unit for 978,09oC day.

scholarly journals Nondestructive Analysis of Sweet Corn Maturity Using NMR

HortScience ◽  
1999 ◽  
Vol 34 (2) ◽  
pp. 319-321 ◽  
Author(s):  
R. Roger Ruan ◽  
Paul L. Chen ◽  
Simon Almaer
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Sweet Corn ◽  
Harvest Time ◽  
Nondestructive Analysis ◽  
Heat Unit ◽  
Relaxation Time Constant ◽  
Maturity Score ◽  
Maturity Indices ◽  
The Relationship ◽  
Maturity Parameters

This paper describes the relationship between the maturity stages and nuclear magnetic resonance (NMR) characteristics of sweet corn (Zea mays L.). The NMR parameter T2, which is the spin–spin relaxation time constant, and two conventional maturity parameters, moisture content and alcohol insoluble solids (AIS), of sweet corn samples during maturation, were determined and correlated with reference maturity indices, namely, heat units and sensory maturity scores. The relationships between T2 and the heat unit and sensory maturity score of the samples were linear, suggesting that T2 can be used to establish mathematical models for the prediction of sweet corn maturity to determine harvest time. The major advantages of using NMR are the nondestructive nature, the speed, and the simplicity of the method.

ANALYSIS OF PLANT FRAGARIA XANANASSA DISEASE DIAGNOSES USING PRODUCTION RULES BASE ON EXPERT SYSTEM

2020 ◽  
Vol 16 (1) ◽  
pp. 25-32
Author(s):  
Basiroh Basiroh ◽  
Wiji Lestari
Keyword(s):  
Expert System ◽  
Early Diagnosis ◽  
General Public ◽  
Insect Pests ◽  
Fruit Rot ◽  
Proper Treatment ◽  
Harvest Time ◽  
Production Rules

Errors that occur in solving problems in strawberry plants (Fragaria Xananassa) such as the presence of leaf patches, fruit rot, perforated leaves, and insect pests can be the cause of not maximum in harvest time. The farmers and the general public who planted strawberry (Fragaria Xananassa) need to know the proper treatment of diseases and pests so that future yields as expected. Therefore, it takes an application as a solution in the delivery of information related to the problems that are often encountered in strawberry plants (Fragaria Xananassa). Methods of production rules can be used to diagnose the disease strawberry (Fragaria Xananassa) based on signs or symptoms that occur in the parts of plants and strawberry, the results of diagnosis using this method are the same as we do Consultation on experts.  The purpose of this study was to determine the early diagnosis of disease in strawberry plants (Fragaria Xananassa) based on signs or symptoms that occur in the plant and fruit parts. The results of the analysis of this study showed that the validation of disease and symptom data in strawberry plants (Fragaria Xananassa) reached 99%, meaning that between the data of symptoms and disease understudy the accuracy was guaranteed with the experts.

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

2009 ◽  
Vol 70 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Marek Gajewski ◽  
Zenon Węglarz ◽  
Anna Sereda ◽  
Marta Bajer ◽  
Agnieszka Kuczkowska ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Carrot Juice ◽  
Harvest Time ◽  
Experimental Station ◽  
Colour Parameters ◽  
Solids Content ◽  
Nitrates Content

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest TermIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F1and Trafford F1cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha-1and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO3) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b*system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO3concentration was found in carrots fertilized with 120 kg·ha-1of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a*and b*values were observed at the last term of harvest.

Pengarug Gaya Kepemimpinan, Budaya Organisasi, dan Kepercayaan Pegawai terhadap Komitmen Organisasi pada Suku Dinas Pendidikan Dasar Kota Administrasi Jakarta Barat

2015 ◽  
Vol 3 (3) ◽  
Author(s):  
Soeparlan Kasyadi
Keyword(s):  
Organizational Culture ◽  
Organizational Commitment ◽  
Strategic Planning ◽  
Human Resources ◽  
Path Analysis ◽  
Leadership Style ◽  
Basic Education ◽  
Human Resources Development ◽  
Resources Development ◽  
Unit Analysis

<p>This research is aimed at obtaining information related to the affect of the <br />leadership style, organizational culture, and employees’ trust on organizational <br />commitment. Research has been implemented using path analysis after all variables put into a matrix of correlation. In this research, employees had been chosen as a unit analysis and 65 samples selected randomly. The results of research found out that: (1) there is direct affect of leadership style on employees’ trust; (2) there is direct affect of organizational culture on employees’ trust; (3) there is direct affect of leadership style on organizational commitment; (4) there is direct affect of organizational culture on organizational commitment; and (5) there is direct affect of employees’ trust on <br />organizational commitment. Based on those findings it could be concluded that any changing or variation which occurred to the organizational commitment of Basic Education Office in West Jakarta had been effected by leadership style, organizational culture, and trust to employees. Therefore, leadership style, organizational culture, and employees’ trust should be put into strategic planning of human resources development in increasing the organizational commitment of Basic Education Office in West Jakarta, however other variables are necessary to be taken into account properly. <br /> <br /><br /></p>

scholarly journals Effects of agronomic factors on yield and quality of whole corn plants and the impact of feeding high concentrations of corn silage in diets containing distillers grains to finishing cattle1

2017 ◽  
Vol 1 (3) ◽  
pp. 367-381 ◽  
Author(s):  
D. B. Burken ◽  
B. L. Nuttelman ◽  
J. L. Gramkow ◽  
A. L. McGee ◽  
K. M. Sudbeck ◽  
...  
Keyword(s):  
Corn Silage ◽  
Distillers Grains ◽  
Net Energy ◽  
Harvest Time ◽  
Marbling Score ◽  
Finishing Diets ◽  
Plant Yields ◽  
Corn Plants ◽  
The Impact ◽  
Corn Grain

Abstract Corn plants were sampled over 2 consecutive years to assess the effects of corn hybrid maturity class, plant population, and harvest time on whole corn plant quality and yield in Nebraska. A finishing experiment evaluated the substitution of corn with corn silage in diets with corn modified distillers grains with solubles (MDGS). The first 2 harvest dates were at the mid- and late-silage harvest times whereas the final harvest was at the grain harvest stage of plant maturity. Whole plant yields increased as harvest time progressed (yr 1 quadratic P &lt; 0.01; yr 2 linear P &lt; 0.01). However, differences in TDN concentration in both years were quite minimal across harvest time, because grain percentage increased but residue NDF in-situ disappearance decreased as harvest time was delayed. In the finishing experiment, as corn silage inclusion increased from 15 to 55% (DM basis) by replacing dry rolled and high moisture corn grain with corn silage in diets containing 40% MDGS, DMI, ADG, and G:F linearly decreased (P ≤ 0.01), with the steers on the 15% corn silage treatment being 1.5%, 5.0%, and 7.7% more efficient than steers on treatments containing 30, 45, and 55% corn silage, respectively. Calculated dietary NEm and NEg decreased linearly as corn silage inclusion increased indicating that net energy values were greater for corn grain than for corn silage. In addition, dressing percentage decreased linearly (P &lt; 0.01) as silage inclusion increased suggesting more fill as silage inclusion increases in diets. Cattle fed greater than 15% corn silage in finishing diets based on corn grain will gain slower and be slightly less efficient and likely require increased days to market at similar carcass fatness and size. When 30% silage was fed with 65% MDGS, DMI, and ADG were decreased (P &lt; 0.01) compared to feeding 30% silage with 40% MDGS suggesting some benefit to including a proportion of corn in the diet. Conversely, when 45% silage was fed with 40% MDGS, ADG, and G:F were greater (P &lt; 0.04) than when 45% silage was fed with just grain implying a greater energy value for MDGS than for corn grain. Substituting corn silage for corn grain in finishing diets decreased ADG and G:F which would increase days to finish to an equal carcass weight; however, in this experiment, increasing corn silage levels with MDGS present reduced carcass fat thickness without significantly decreasing marbling score.

scholarly journals Impact of Foliar Application of Various Forms of Silicon on the Chemical Composition of Sugar Beet Plants

Sugar Tech ◽  
2021 ◽  
Author(s):  
Arkadiusz Artyszak ◽  
Małgorzata Kondracka ◽  
Dariusz Gozdowski ◽  
Alicja Siuda ◽  
Magda Litwińczuk-Bis
Keyword(s):  
Chemical Composition ◽  
Sugar Beet ◽  
Foliar Application ◽  
Foliar Spray ◽  
Water Shortage ◽  
Sugar Yield ◽  
Orthosilicic Acid ◽  
Harvest Time ◽  
Polysilicic Acid ◽  
Critical Phase

AbstractThe effect of marine calcite, a mixture of ortho- and polysilicic acid as well as orthosilicic acid applied as a foliar spray on the chemical composition of sugar beet leaves in the critical phase of nutrient supply (beginning of July) but also leaves and roots during harvest time in 2015–2016, was studied. The content of silicon in the leaves ranged from 1.24 to 2.36 g kg−1 d.m. at the beginning of July, 3.85–5.34 g kg−1 d.m. during harvest and 2.91–4.20 g kg−1 d.m. in the roots. The foliar application of silicon caused a significant increase in the content of magnesium and calcium in leaves (in July) as compared to the control. The sugar beet consumes approx. 75 kg Si ha−1, which is almost 3.5 times more than P and 20% more than Mg thus proving its importance for its species. About 70% of the silicon taken up by sugar beet is stored in roots and 30% in leaves. The pure sugar yield is most favorably influenced by two- and threefold foliar application of the product containing silicon in the form of orthosilicic acid stabilized with choline, and a threefold mixture of ortho- and polysilicic acid. The increase in the pure sugar yield is not the result of a change in the chemical composition of sugar beet plants, but their more efficient functioning after foliar application of silicon under stress conditions caused by water shortage.

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