maximum productivity
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2021 ◽  
Vol 1 (1) ◽  
pp. 620-627
Author(s):  
Darban Haryanto ◽  
Ellen Rosyelina Sasmita

Indigofera sp. is an environmentally friendly source of indigo dye for batik production and a material for livestock industry because this plant potentially serves as a forage protein source. This plant has the potential to be further developed and its cultivation requires quality seeds. Seedling growth is an important factor in achieving maximum productivity. Increasing its growth can be done by providing sufficient nutrients and using appropriate growing media. The results showed that there was an interaction between the concentration of Gandasil D fertilizer and growing media composition, namely at Gandasil D fertilizer concentration of 2 g/1 liter of water and a growing medium consisting of coco peat and compost with the parameters of plant height and stem diameter observed at 10 WAP. The Gandasil D fertilizer concentration of 2 g/1 liter of water affected the growth of Indigofera seedlings more effectively than other concentrations. A growing medium consisting of coco peat and compost with a ratio of 1:1 was more effective in boosting the growth of Indigofera seedlings than growing media consisting of other compositions.


Author(s):  
E.V. Pestryakov ◽  

The technical platforms for solving the problems of using artificial intelligence in the field of agriculture are described. Creation of new computing devices that allow storing and processing large amounts of information and software makes it possible to form integrated computer systems to increase maximum productivity.


Author(s):  
T. V. Polishchuk ◽  
V. V. Bondarenko

The results of feed behavior and milk productivity in the cows of Ukrainian black-speckled dairy breed of different fattening of the first and second lactations from the first month to the end of lactation are given. The analysis of the herd showed that the highest milk productivity in cows of the first lactation was found in the group of fattening from 3 to 4 points, which was by 9.2 % (P ≥ 0.99) higher, compared to the group of cows with fattening 4 points and more. The milk yield in cows of the second lactation with fattening from 3 to 4 points exceeded the milk yield of cows with fattening 4 points and more by 12.9 % (P ≥ 0.95). The content of fat and protein in milk was higher in the cows with higher fattening, compared to the cows with lower fattening. The highest average daily milk yield was found in cows of the first lactation with fattening from 3 to 4 points. Depending on the month, it was by 5.5–11.7 % (P ≥ 0.95 – P ≥ 0.999) higher, compared to the cows with fattening 4 points and more, while it was by 6.9–10.0 % (P ≥ 0.95 – P ≥ 0.999) higher in cows of the second lactation. The gestation period of cows has a significant effect on the reduction of milk yield. The milk yield of cows in connection with the term of their gestation are reduced by 0.1 kg per day during the second month after insemination, by 0.2 kg per day during the third month, by 0.3 kg per day during the fourth month, by 0.6 kg per day during the fifth month, by 1.0 kg per day during the sixth month, by 1.7 kg per day during the seventh month and by 2.8 kg per day during the eighth month. The analysis of the dynamics of monthly milk yield shows that lactation curves of cows increase from the first day of lactation to its peak, which occurs in the 2nd – 4th month after calving. The lactation curve in the cows with fattening from 3 to 4 points has a higher peak in the 2nd –3d month of lactation, compared to the cows with higher (more than 4 points) fattening. The animals of all groups, except for cows of the second lactation (with fattening 4 and more points) showed the maximum productivity in the 2nd –3d month of lactation; then the lactation curve decreased with different intensity. The index of constancy of lactation and the index of falling milk yield are the important indicators that characterize the stability of lactation curves. The constancy of lactation curves having been determined by I. Johansson-Hansson index was higher in the cows with fattening 4 and more points, compared to the indicator of the cows with fattening from 3 to 4 points. The studies of behavioral reactions have shown that the animals of the first lactation with an average (from 3 to 4 points) fattening consume feed during 208.5 minutes, which is by 17 minutes (P ≥ 0.999) longer than the animals with higher average fattening, and by 14.5 minutes (P ≥ 0.99) longer than the animals of the second lactation.


Author(s):  
Amit K. Thakur ◽  
Santosh K. Gupta ◽  
Rahul Kumar ◽  
Nilanjana Banerjee ◽  
Pranava Chaudhari

Abstract Slurry polymerization processes using Zeigler–Natta catalysts are most widely used for the production of polyethylene due to their several advantages over other processes. Optimal operating conditions are required to obtain the maximum productivity of the polymer at minimal cost while ensuring operational safety in the slurry phase ethylene polymerization reactors. The main focus of this multi-objective optimization study is to obtain the optimal operating conditions corresponding to the maximization of productivity and yield at a minimal operating cost. The tuned reactor model has been optimized. The single objective optimization (SOO) and multi-objective optimization (MOO) problems are solved using non-dominating sorting genetic algorithm-II (NSGA-II). A complete range of Pareto optimal solutions are obtained to obtain the maximum productivity and polymer yield at different input costs.


Author(s):  
M.A. Gaibaryan ◽  
◽  
V.I. Sidorkin ◽  
N.N. Gapeeva ◽  
◽  
...  

A rational structural construction of the general process of fertilizer mixing and biomodification of solid mineral fertilizers is proposed. It covers all the process steps starting from the receipt of individual mixing components at the enterprise fertilizer mixing section through to the shipment of the finished biomodified fertilizer mixture to the finished product warehouse. The condition of synchronous operation of units and assemblies of a fertilizer mixing line is substantiated, where its maximum productivity, high mixing intensity and good quality of the mixture are achieved.


Author(s):  
Ajay Kumar Upadhyay ◽  
Anoop Mohanty

In this study we looked at the culture, rearing, housing systems, health problems and economical factors affecting the rabbit production in rural areas as well as in urban areas. The rabbits are susceptible to nature and the climate and the surrounding in which they are kept, hence in this case study we have discussed the keeping of rabbits so that maximum productivity can be obtained from them leading to maximum profit. Rabbits are very profitable in the commercial sector and hence people living near any medical laboratories, etc. used to rear rabbits as a major part of their business. Yield from rabbit business has grown over years making it a very attractive business proposition.


Author(s):  
Dian Lourençoni ◽  
Amelia Carvalho Faustino ◽  
Sílvia Helena Nogueira Turco ◽  
Otoniel Cajuí Bonfim ◽  
Luana Carolina Rocha E Silva L C ◽  
...  

Abstract Despite the lack of large-scale farming of free-range chickens in Brazil, their production generates income in the countryside and prevents exodus of rural families in agricultural regions. The objective of this study is to evaluate the economic viability of free-range broiler production in different facilities. The experiment was conducted in two different sheds (masonry shed-SM and wooden shed-SW) located in the Plural Space of the Universidade Federal do Vale São Francisco, municipality of Juazeiro, BA. Here, 200 heavy red French free-range chickens were distributed in the two sheds and were raised from the 1st to the 88th day (slaughter). Assuming that the minimum age for slaughter is 85 days, the results indicated that at least 205 birds in SM and 217 birds in SW were necessary for the producer to earn the minimum per capita monthly wage in Brazil (2020); at least 411 birds in CG and 600 birds in GM were found to be necessary to achieve maximum productivity at the end of the production cycle. The maximum profitability in the slaughter of the chickens was achieved at an age of 60 days.


2021 ◽  
pp. 21-23
Author(s):  
Anna Aleksandrovna Dronik

The article presents the results of studying the resistance of cherry varieties to the spring return frosts of 2019 ... 2020 in the conditions of the sharply continental climate of the Astrakhan region. The aim of the research was to identify the most adapted cherry varieties for cultivation under conditions of abiotic stresses that affect the setting and fruiting. The results of the preservation of generative buds under the influence of low temperatures are presented. The total damage score reached 5 points. It is established that the sensitivity of the studied cherry varieties to low air temperatures depends on the timing of the onset of the main phenological phases. All cherry varieties showed an insufficient level of resistance to return frosts up to -5...-7°C. The exception was the variety Molodezhnaya, which had the lowest degree of damage (1...2 points). During the two years of study, the maximum productivity in the experiment was characterized by the Loznovskaya variety (3.2 kg / tree).


Author(s):  
V. Polyakov ◽  
Irina Fomicheva

The adaptation of well-known approaches to the assessment and identification of reserves for improving the productivity of managerial, administrative and other office work due to the changing format and technologies of its implementation as a result of digitalization is considered. A scientific approach to measuring and evaluating the productivity of intellectual labor is proposed based on the method of calculating productivity reserves as a value that depends on the time of organizational and qualification losses. The article shows the specifics of calculating such criteria for assessing labor productivity as possible and maximum productivity, the size of their reserves and the time loss factor for a particular employee or various organizational structures of managerial, administrative or office activities.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hongjiang Liu ◽  
James U. Bowie

AbstractIt is now possible to efficiently fix flue gas CO/CO2 into ethanol using acetogens, thereby making carbon negative ethanol. While the ethanol could be burned as a fuel, returning the CO2 to the atmosphere, it might also be possible to use the fixed carbon in more diverse chemicals, thereby keeping it fixed. Here we describe a simple synthetic biochemistry approach for converting carbon negative ethanol into the synthetic building block chemical 1,3 butanediol (1,3-BDO). The pathway completely conserves carbon from ethanol and can ultimately be powered electrochemically via formate oxidation. Our proof-of-principle system reached a maximum productivity of 0.16 g/L/h and, with replenishment of feedstock and enzymes, achieved a titer of 7.7 g/L. We identify a number of elements that can be addressed in future work to improve both cell-free and cell-based production of 1,3-BDO.


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