Агрономическая эффективность промышленной (голландской) технологии возделывания картофеля

2018 ◽  
Author(s):  
C. Coy ◽  
A.V. Shuravilin ◽  
O.A. Zakharova
Keyword(s):  
Heavy Metals ◽  
Regression Analysis ◽  
Positive Response ◽  
Growth Yield ◽  
Correlation And Regression Analysis ◽  
Yield And Quality ◽  
Quality Of Products ◽  
High Degree ◽  
The Impact

Приведены результаты исследований по изучению влияния промышленной технологии возделывания картофеля на развитие, урожайность и качество продукции. Выявлена положительная реакция растений на подкормку K2SO4 в период посадки. Корреляционно-регрессионный анализ урожайности и качества клубней выявил высокую степень достоверности результатов опыта. Содержание нитратов и тяжелых металлов в клубнях было ниже допустимых величин.The results of studies on the impact of industrial technology of potato cultivation on growth, yield and quality of products. There was a positive response of plants to fertilizer K2SO4 in the period of planting. Correlation and regression analysis of yield and quality of tubers revealed a high degree of reliability of the results of experience. The contents of nitrates and heavy metals in tubers was below the permissible values.

scholarly journals Impact of zinc fertilization on growth, yield and quality of zero till wheat (Triticum aestivum L.)

2021 ◽  
Vol 42 (2) ◽  
pp. 326-331
Author(s):  
M. Singh ◽  
◽  
K.S. Sandhu ◽  
Keyword(s):  
Foliar Application ◽  
Foliar Spray ◽  
Growth Yield ◽  
Triticum Aestivum L ◽  
Recommended Dose ◽  
Zn Deficiency ◽  
Soil Application ◽  
Yield And Quality ◽  
The Impact

Aim: To determine the impact of soil and foliar application of ZnSO4.7H2O at late stages of wheat as heading initiation (5% ear formation), 100% heading (complete ear formation) and heading initiation and 100% heading along with recommended dose of fertilizer on growth, yield and quality of zero till wheat. Methodology: The field experiment was conducted on zero till wheat. The treatments consisted of control (no Zn), soil application of 12.5, 25, 37.5, 50 kg ha-1 ZnSO4.7H2O and foliar application of 0.5% Zn as one spray at heading initiation (5% ear formation), one spray at 100% heading (complete ear formation) and two sprays at heading initiation and 100% heading with recommended dose of fertilizer. These treatments were evaluated in RBD with three replications. Results: Soil application of 50, 37.5 and 25 kg Zn ha-1 with two foliar sprays of 0.5% at heading initiation (5% ear formation) and 100% heading (complete ear formation) stages gave significantly higher average grain and straw yield and Zn concentration in grain than other treatments, including control. Interpretation: Enhanced application of Zn as soil and foliar application ameliorates soil Zn deficiency and increases protein content in grains, which might influence the quality and yield of zero tilled wheat. Key words: Foliar spray, Grain yield, Wheat, Zinc

scholarly journals Yield and quality of strawberries when applying fertilizers

2021 ◽  
pp. 94-99
Author(s):  
T. E. Ivanova ◽  
E. V. Lekomtseva ◽  
T. N. Tutova ◽  
E. V. Sokolova ◽  
L. A. Nesmelova
Keyword(s):  
Soluble Sugars ◽  
Growing Season ◽  
Meteorological Conditions ◽  
Water Soluble ◽  
Mineral Fertilizers ◽  
Yield And Quality ◽  
Udmurt Republic ◽  
Quality Of Products ◽  
The Impact

Relevance. One of the most important elements of the technology of cultivation of strawberries for increasing productivity and improving the quality of berries is the use of fertilizers that can regulate the growth, development, yield and quality of products.Methods. During 2016-2018, the impact of pre-planting application of complex mineral fertilizers on the yield and quality of strawberries in the Udmurt Republic was studied. The analysis of meteorological conditions during the growing season of the crop according to the research results is carried out.Results. The results of the use of complex fertilizers Azofoska, Perm-yagodnoye and Fusco-yagodnoye on garden strawberries when grown in the conditions of the Udmurt Republic are presented. It was found that the use of these fertilizers in comparison with the control (Azofoska) contributes to an increase in yield and has a positive effect on the quality of berries. The aftereffect of the studied fertilizers on the second and third year of fruiting of wild strawberries is noted. According to the results of research, the highest yield of berries of the garden strawberry was obtained in 2016 in the first year of fruiting when applying Chamfer-berry (1.33 kg/m2 ). The pre-planting application of the FaskoYagodnoye fertilizer provided a reliable increase in yield at all times of berry harvesting, and on average for three years by 0.13 kg/m2 with an NSR of 0.04 kg/m2 . The content of dry matter, water-soluble sugars and vitamin C in the berries corresponded to the characteristics of the Darenka variety and to a greater extent depended on the meteorological conditions of the growing season of strawberries.

scholarly journals The impact of foliage fertilization of iron and molybdenum on yield, N uptake and root nodulation of lentil (Lens Culinaris Medic) crop

2019 ◽  
Author(s):  
Jamal Nasar ◽  
Roshan Ali ◽  
Ashfaq Alam ◽  
Muhammad Zubair Khan ◽  
Bilal Ahmad
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
N Uptake ◽  
Growth Yield ◽  
Combined Application ◽  
Yield And Quality ◽  
Random Block ◽  
Random Block Design ◽  
The Impact

A field experiment was established to study the impact of foliage fertilization of microelements (Fe and Mo) on lentil at the Agricultural Research Farm Mingora, Swat, Pakistan in 2016-17. All the treatments were assigned in random block design. The results showed that iron (Fe) and molybdenum (Mo) significantly improved the yield and quality of lentil crop. Based on the obtained results, the majority of the parameters increased with the combined application of Fe and Mo. The combined application of Fe and Mo at 500 and 100 g ha-1 produced the maximum grain yield (1361 kg ha-1), biological yield (3126 kg ha-1), 1000 grain weight (54.62 g), protein percent (30 %), N uptake (65.32 kg ha-1), Fe (48.33 mg/g) and Mo (5.07 mg/g) concentration. Results further revealed that Mo at the rate of 100 g ha-1 significantly enhanced the number of nodules (9.13 plant-1) and active nodules (8.03plant-1). These results suggested that Fe and Mo in optimal amount solely or as a blend considerably improve the growth, yield and quality of lentil crop and is therefore recommended for the better production of lentil crop in the agro-climatic condition of Swat valley.

scholarly journals Pengaruh Varietas dan Paket Pemupukan pada Fase Produktif terhadap Kualitas Melon (Cucumis melo L.) di Quartzipsamments

2018 ◽  
Vol 9 (2) ◽  
pp. 93-102
Author(s):  
Muhammad Anang Firmansyah ◽  
Wahyu Adi Nugroho ◽  
Suparman ,
Keyword(s):  
Quartz Sand ◽  
Cucumis Melo ◽  
Positive Response ◽  
Growth Yield ◽  
Fruit Weight ◽  
Highest Weight ◽  
Yield And Quality ◽  
Two Factors ◽  
Cucumis Melo L

ABSTRACTMelon (Cucumis melo L.), one of the high-value fruits, has been started to expand by farmers but the heterogeneity in quality may constrain the development. This study aimed to improve the quality of melon in quartz-sand soil (Quartzipsamments). A field experiment based on the split-plot design was conducted on April to June 2016 in Kotawaringin Timur Regency, Central Kalimantan Province, using two factors comprising melon varieties and on-productive-stage fertilization. The varieties consist of Rio F1 (V1), Action 434 F1 (V2), Madesta F1 (V3), Dewo F1 (V4), Gracia F1 (V5), and Okasa F1 (V6). While four fertilization packages which have different dosage on each were tested, including control (P0), low (P2), medium (P3), and high (P3). The result indicated that either varieties or fertilizing significantly affected growth, yield, and the quality of melon. There was a significant interaction between varieties and fertilizing toward yield and quality. Madesta F1 is the only varieties which showed positive response along with increasing fertilizer dosage, and the highest weight (4.55 kg) occurred on the high fertilizing level (P3). While in regard to sweetness level, Rio F1 showed a positive response until medium fertilizing dosage (P2) and resulted in the highest sweetness level by 13.05 oBrix but decreased on the higher dosage (P3). The fruit weight slightly-negative correlated with total sweetness level where the increase in weight may reduce the sweetness level.Keywords: lowland, quartz sand, sweetness levelABSTRAKMelon (Cucumis melo L.) sebagai salah satu komoditas bernilai ekonomis tinggi mulai dikembangkan banyak petani, namun terkendala dengan kualitas buah yang beragam. Penelitian ini bertujuan untuk meningkatkan mutu buah melon di tanah pasir kuarsa (Quartzipsamment). Percobaan lapangan dengan Rancangan Petak Terbagi dilakukan pada bulan April hingga Juni 2016 di Kabupaten Kotawaringin Timur, Provinsi Kalimantan Tengah, dengan menggunakan dua faktor, yaitu varietas dan dosis pemupukan pada fase produktif. Faktor varietas terdiri atas: Rio F1 (V1), Action 434 F1 (V2), Madesta F1 (V3), Dewo F1 (V4), Gracia F1 (V5), dan Okasa F1 (V6). Sedangkan faktor pemupukan pada fase produktif terdiri atas: kontrol (P0), rendah (P2), sedang (P3), dan tinggi (P3). Hasil penelitian menunjukkan bahwa faktor varietas maupun pemupukan berpengaruh terhadap peubah pertumbuhan, hasil, maupun kualitas. Terdapat interaksi yang nyata antara varietas dan pemupukan terhadap peubah hasil maupun kualitas buah. Madesta F1 adalah satu-satunya varietas yang menunjukkan respon positif dengan meningkatnya dosis pemupukan, dengan bobot buah tertinggi sebesar 4.55 kg dicapai pada perlakuan dosis tinggi (P3). Untuk kemanisan buah, varietas Rio F1 menunjukan respon positif dengan adanya peningkatan dosis hingga dosis sedang (P2) dengan nilai kemanisan tertinggi di antara yang lain (13.05 oBrix), namun menurun pada dosis yang lebih tinggi (P3). Bobot buah berkorelasi negatif yang tidak terlalu erat dengan tingkat kemanisan total buah, semakin tinggi bobot cenderung menurunkan tingkat kemanisan buah.Kata kunci: dataran rendah, pasir kuarsa, tingkat kemanisan

scholarly journals Pengaruh Promosi, Harga Dan Kualitas Produk Terhadap Keputusan Pembelian Batik Madura Pada Galery Pesona Bangkalan

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Khusnul Khotimah ◽  
Pribanus Wantara
Keyword(s):  
Regression Analysis ◽  
Linear Regression Analysis ◽  
Purchase Decision ◽  
Sampling Techniques ◽  
Purchase Decisions ◽  
Purchasing Decisions ◽  
Instrument Testing ◽  
Quality Of Products ◽  
The Impact

The study aims to test and analyze the impact of promotions, prices and the quality of products on the batik madura purchase decision on the charm fisheries. The study is using a predictive quantitative approach, the population in this study is the customer who used to buy batik madura at the charm gallery of the banker. With as many as 60 respondents taken using sampling techniques. Data collected using a questionnaire. The tools of analysis in the study employ instrument testing, classic assumptions test, data analysis (linear regression analysis berganda, test t, test f and r2's coefficient determinations). The results of the data prepared in SPSS 23 result in that promotion is partial to positive and significant to purchase decisions, prices are partial to positive and significant to purchase decisions and product quality. Based on the simultaneous promotion of f, prices and quality products have a positive and significant impact on purchasing decisions.

Public procurement quality assessment of a region: regression analysis

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Olga S. Belokrylova ◽  
Kirill A. Belokrylov ◽  
Sergey S. Tsygankov ◽  
Vadim A. Syropyatov ◽  
Elena D. Streltsova
Keyword(s):  
Mathematical Model ◽  
Regression Analysis ◽  
Public Procurement ◽  
Mathematical Apparatus ◽  
Content Type ◽  
Correlation And Regression Analysis ◽  
The Impact ◽  
The Mathematical Model ◽  
Functional Attribute

PurposeThe paper aims to present the results of a study aimed at constructing economic and mathematical models used in decision-making in the management of budget procurement of a region, contributing to the efficient use of budget funds. One of the key problems in this area is the assessment of the quality of procurementDesign/methodology/approachOne of the key problems in this area is the assessment of the quality of procurement, the solution of which requires the application of economic and mathematical methods, models, tools and algorithms built into information systems for supporting decision-making. The introduction of these systems brings to a qualitatively new level the system of relations between subjects of budget procurement. The paper analyzes modern publications on the implementation of public procurement and related issues of efficiency (savings) of budgetary funds.FindingsThe indicators on the basis of which the evaluation of the quality of regional procurement is determined are proposed. The architecture of the information system for decision support in the evaluation of procurement quality has been developed. The system has the property of adapting to changes in the state of the environment through the constant accumulation of statistical data characterizing the procurement and adjustment of the parameters of the mathematical model in accordance with them. A mathematical model is built into the control loop that allows ranking the indicators of budget purchases by the degree of their influence on the effective attribute. The role of a functional feature is the quality of budget procurement. The mathematical model is based on the application of the mathematical apparatus of correlation and regression analysis. The impact of each of the factor attributes on the functional attribute has been assessed.Originality/valueThe mathematical model is based on the application of the mathematical apparatus of correlation and regression analysis. The impact of each of the factor attributes on the functional attribute has been assessed. Real statistics are given that characterize budget procurements carried out in retrospect. The coefficients of the linear regression model are determined based on the use of the STATISTICA application software package. The proposed decision support information system with a regression model built into it allows one to make scientifically and quantitatively sound decisions when assessing the quality of budget purchases of a region.

scholarly journals Effect of seed treatments, spacing and season of sowing on yield and quality of coriander (Coriandrum sativum L.) under rain shelter

2021 ◽  
pp. 90-99
Author(s):  
V U Anjukrishna ◽  
N Mini Raj ◽  
P Anitha ◽  
A K Aneesha
Keyword(s):  
Seed Treatment ◽  
Growth Yield ◽  
Quality Parameters ◽  
Growth And Yield ◽  
Seed Treatments ◽  
Humid Climate ◽  
Yield And Quality ◽  
Randomized Design ◽  
The Impact

Coriander is an important herb & seed spice. The yield of coriander is influenced by the agronomic practices adopted during cultivation. This study was carried out in the Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, Kerala Agricultural University from July 2019 to March 2020 to analyse the effect of seed treatments, spacing and growing season on yield and quality of coriander leaves under rain shelter. The experiment was laid out in factorial completely randomized design (FCRD) with three replications. The study revealed that, presowing seed treatments improved the growth and yield of coriander than untreated seeds. The impact of seed treatments was conspicuous at the time of harvest on growth, yield and quality parameters. Hydropriming for 24 h was found to be the best presowing seed treatment followed by seed treatment with GA3 50 ppm for 8 h. A closer spacing of 10 x 10 cm which accommodated more plants per unit area recorded the highest biomass and herbage yield plot-1. October – December season was found to be the best for obtaining better growth and yield in leaf coriander. Hence, the study concluded that, hydropriming for 24 h or seed treatment with GA3 50 ppm for 8 h, a closer spacing of 10 x 10 cm and October – December season are the ideal combination for the best performance of variety CO-4 for leaf purpose under rain shelter in the tropical moist humid climate.

Influence of technology parameters of free-cutting steel continuous casting on the billet internal structure

2020 ◽  
Vol 76 (2) ◽  
pp. 139-142
Author(s):  
A. T. Kunakbaeva ◽  
A. M. Stolyarov ◽  
M. V. Potapova
Keyword(s):  
Regression Analysis ◽  
Continuous Casting ◽  
Internal Structure ◽  
Sulfur Content ◽  
Manganese Content ◽  
High Quality ◽  
Correlation And Regression Analysis ◽  
Cutting Steel ◽  
Continuously Cast

Free-cutting steel gains specific working properties thanks to the high content of sulfur and phosphorus. These elements, especially sulfur, have a rather high tendency to segregation. Therefore, segregation defects in free-cutting steel continuously cast billets can be significantly developed. The aim of the work was to study the influence of the chemical composition of freecutting steel and casting technological parameters on the quality of the macrostructure of continuously cast billets. A metallographic assessment of the internal structure of cast metal made of free-cutting steel and data processing by application of correlation and regression analysis were the research methods. The array of production data of 43 heats of free-cutting steel of grade A12 was studied. Steel casting on a five-strand radial type continuous casting machine was carried out by various methods of metal pouring from tundish into the molds. Metal of 19 heats was poured with an open stream, and 24 heats – by a closed stream through submerged nozzles with a vertical hole. High-quality billets had a cross-sectional size of 150×150 mm. The macrostructure of high-quality square billets made of free-cutting steel of A12 grade is characterized by the presence of central porosity, axial segregation and peripheral point contamination, the degree of development of which was in the range from 1.5 to 2.0 points, segregation cracks and strips – about 1.0 points. In the course of casting with an open stream, almost all of these defects are more developed comparing with the casting by a closed stream. As a result of correlation and regression analysis, linear dependences of the development degree of segregation cracks and strips both axial and angular on the sulfur content in steel and on the ratio of manganese content to sulfur content were established. The degree of these defects development increases with growing of sulfur content in steel of A12 grade. These defects had especially strong development when sulfur content in steel was of more than 0.10%. To improve the quality of cast metal, it is necessary to have the ratio of the manganese content to the sulfur content in the metal more than eight.

Drip Irrigation and Stand Establishment Affect Yield and Quality of Cantaloupe

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 545d-545
Author(s):  
D.I. Leskovar ◽  
J.C. Ward ◽  
R.W. Sprague ◽  
A. Meiri
Keyword(s):  
Field Experiments ◽  
Irrigation System ◽  
Fruit Size ◽  
Growth Yield ◽  
Vegetable Production ◽  
Silty Clay ◽  
Dry Land ◽  
Stand Establishment ◽  
Yield And Quality

Water pumping restrictions of high-quality irrigation water from underground aquifers is affecting vegetable production in Southwest Texas. There is a need to develop efficient deficit-irrigation strategies to minimize irrigation inputs and maintain crop profitability. Our objective was to determine how growth, yield, and quality of cantaloupe (Cucumis melo L. cv. `Caravelle') are affected by irrigation systems with varying input levels, including drip depth position and polyethylene mulch. Stand establishment systems used were containerized transplants and direct seeding. Field experiments were conducted on a Uvalde silty clay loam soil. Marketable yields increased in the order of pre-irrigation followed by: dry-land conditions, furrow/no-mulch, furrow/mulch, drip-surface (0 cm depth)/mulch, drip-subsurface (10-cm depth)/mulch, and drip-subsurface (30 cm depth)/mulch. Pooled across all drip depth treatments, plants on drip had higher water use efficiency than plants on furrow/no-mulch or furrow/mulch systems. Transplants with drip-surface produced 75% higher total and fruit size No. 9 yields than drip-subsurface (10- or 30-cm depth) during the first harvest, but total yields were unaffected by drip tape position. About similar trends were measured in a subsequent study except for a significant irrigation system (stand establishment interaction for yield. Total yields were highest for transplants on drip-subsurface (10-cm depth) and direct seeded plants on drip-subsurface (10 and 30 cm depth) with mulch.

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