Impact of Multiple Forms and Application Methods of Natural Zeolite on Potato Yield Increase

Abstract Potato and its by-products became a promising both food and bioenergy resource. The determination of the bacteriaantagonists influence on phytohormone status and productivity of potato tubers was studied. The indole-3-acetic acid content during the dormancy end and germinating in the tubers treated with Bacillus subtilis Ch-13 was fewer than in the control samples. L-tryptophan significant quantity compared to the control was found in the treated tubers in a state of physiological dormancy (more than 2-fold) and especially during active germination (43 times greater). Average potato yield increase at treated fields was of 18.8 %.

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The efficiency of application urea with urease inhibitor to increase potato yield

E3S Web of Conferences ◽

10.1051/e3sconf/202127301006 ◽

2021 ◽

Vol 273 ◽

pp. 01006

Author(s):

Maria Vizirskaya ◽

Anna Shchepeleva ◽

Natalia Akanova ◽

Vasilii Zhdanov ◽

Sergey Sherstobitov

Keyword(s):

Quality Improvement ◽

Potato Yield ◽

Tuber Size ◽

Urease Inhibitor ◽

Yield Increase ◽

Potato Fertilizer ◽

Marketable Potato

In the article are presented the investigation results, which shows the effectiveness of urea with urease inhibitor – nBPT in potato growing agroecosystems. The advantages of the new fertilizer are the yield increase, and quality improvement. Urea with nBPT lead to formation bigger tuber size what is one of the most important characteristic for marketable potato. Fertilizer was tested in experimental fields and in real farm conditions.

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Integrated effect of fertilizer application and protective measures on weed infestation and potato yield

Rossiiskaia selskokhoziaistvennaia nauka ◽

10.31857/s2500-26272019427-30 ◽

2019 ◽

pp. 27-30

Author(s):

A. M. Shpanev ◽

V. V. Smuk ◽

M. A. Fesenko

Keyword(s):

Mineral Nutrition ◽

Mineral Fertilizer ◽

Fertilizer Application ◽

Potato Yield ◽

Protective Measures ◽

Yield Increase ◽

Weed Infestation ◽

High Level ◽

Potato Crops ◽

Biomass Reduction

The results of the research have revealed integrated effect of the mineral fertilizer application and protective measures influence on weed infestation and potato yield. This effect was developed on the second half of the vegetation and expressed in more stronger inhibition of plant development (from 36,6 to 20,4 and 11,1 g/m2 on low, medium and high levels of mineral nutrition, respectively), in the reduction of species diversity (from 12 to 10 and 10 species/m2) and number of weeds (from 69 to 42 and 32 species/m2). The highest biological (biomass reduction – 95,3%, the number of weeds – 79%) and economic (yield increase – 228 с/ha or 107%) effect was achieved by the high rates of mineral fertilizer application and combined protective measures of potato crops from weeds. This variant was characterized by the greatest profitability (125,3%), whereas chemical protection providing double treatment of potato plantings with herbicides, even at the middle and high level of mineral nutrition, was less effective (102,6 and 109%) in economic terms.

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Whole sales market for fresh potatoes in Finland

Agricultural and Food Science ◽

10.23986/afsci.5687 ◽

2001 ◽

Vol 10 (2) ◽

pp. 69-80 ◽

Cited By ~ 2

Author(s):

K. JALONOJA ◽

K. PIETOLA

Keyword(s):

Total Yield ◽

Potato Yield ◽

Yield Increase ◽

Price Response ◽

Exogenous Shocks ◽

Hedging Strategies ◽

Potato Price ◽

Producer Prices ◽

Price Movements ◽

Price Risks

The study estimates a conditional mean and conditional variance model for producer prices of fresh potatoes. The results suggest that potato price movements are volatile exhibiting a symmetric and non-stationary process. Prices respond symmetrically to exogenous shocks and the shocks are, thereafter, predicted to prevail in prices to the end of the marketing year. The persistency of the price shocks makes potato price movements unpredictable and, therefore, increases price risks of holding potato inventories. The estimates indicate elastic price response with respect to annual potato yield shocks. A ten percent yield increase is predicted to decrease prices by 20%. The information on inventory levels is included in prices and this information is not increased by surveying the inventory levels. Because of the elastic price response, the largest risk for a farmer is an exceptionally large total yield of potatoes. Information on the aggregate potato yield, which arrives during the growing season, will be quickly incorporated in prices. Therefore, pre-harvest hedging strategies are more efficient than after-harvest hedging strategies in managing potato price risks.

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Affect of growth regulators and irrigation on potato yield in unstable moistening regions

RUDN Journal of Agronomy and Animal Industries ◽

10.22363/2312-797x-2019-14-4-362-373 ◽

2019 ◽

Vol 14 (4) ◽

pp. 362-373

Author(s):

Sergey Valentinovich Zhevora

Keyword(s):

Soil Moisture ◽

Plant Growth ◽

Growth Regulators ◽

Maximum Yield ◽

Potato Yield ◽

Mineral Fertilizers ◽

Yield Increase ◽

Orenburg Region ◽

Irrigated Area ◽

Southern Chernozem

The article presents the results of studies (2014-2016) concerning the assessment of the use of growth regulators (Energia-M, Vigor Forte, Atonik Plus) in combination with irrigation in the field experiment during potato cultivation (Udacha variety). The study was conducted in the Ilek district of the Orenburg region, Krasnokholmskaya Agro-firm. The soil was residual meadow southern chernozem. According to the effectiveness of impact on potato yield in southern chernozem of the Orenburg region, the factors were as follows: irrigation provided yield increase from 40% (without fertilizers) to 65…66% (NPK + Regulators); mineral fertilizers provided yield increase from 41% (without irrigation) to 59% (with irrigation); growth regulators on optimal variants provided yield increase: Vigor Forte / Atonik (tubers + plants) - 12…13% for bogharic agriculture; 16…19% with irrigation to the corresponding mineral ground. The maximum yield of potatoes under irrigation was obtained on variants with 2-fold application of Atonic and Vigor Forte growth regulators (tubers + plants) - 44.2…44.5 t/ha, an increase to the mineral fertilizing (N100P120K100) - 17.9…18.6%. The optimum soil moisture was 70…75% FC in the irrigated area. This increased the payback of 1 kg NPK due to an increase in yield from 19.6 kg (mineral fertilizing, bogharic agriculture) to 55.6…67.2 kg of tubers (combination of NPK, irrigation and regulators). Water consumption decreased from 212 m3/t (mineral fertilizing) to 140…145 m3/t (combination of mineral fertilizers and plant growth regulators).

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Identifying suboptimalities with factorial model comparison

Behavioral and Brain Sciences ◽

10.1017/s0140525x18001541 ◽

2018 ◽

Vol 41 ◽

Cited By ~ 2

Author(s):

Wei Ji Ma

Keyword(s):

Experimental Design ◽

Model Comparison ◽

Process Models ◽

Multiple Forms ◽

Factorial Experimental Design ◽

Factorial Model ◽

Multiple Components ◽

The Many

AbstractGiven the many types of suboptimality in perception, I ask how one should test for multiple forms of suboptimality at the same time – or, more generally, how one should compare process models that can differ in any or all of the multiple components. In analogy to factorial experimental design, I advocate for factorial model comparison.

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Toward a Theory of Intellectual Entertainment

Journal of Media Psychology Theories Methods and Applications ◽

10.1027/1864-1105/a000033 ◽

2011 ◽

Vol 23 (1) ◽

pp. 52-59 ◽

Cited By ~ 4

Author(s):

José I. Latorre ◽

María T. Soto-Sanfiel

Keyword(s):

Scientific Discovery ◽

The Self ◽

Multiple Forms ◽

Complex Emotions ◽

Typical Sequence

We reflect on the typical sequence of complex emotions associated with the process of scientific discovery. It is proposed that the same sequence is found to underlie many forms of media entertainment, albeit substantially scaled down. Hence, a distinct theory of intellectual entertainment is put forward. The seemingly timeless presence of multiple forms of intellectual entertainment finds its roots in a positive moral approval of the self of itself.

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