MACROELEMENT CONTENT IN POTATO TUBERS AS AFFECTED BY MANURING WITH UNDERSOWN CATCH CROP, AND PRODUCTION SYSTEM

The potato tuber content of microelements is lower than that of macroelements but they are equally important. With this respect, there has been noticed a favourable effect of natural and organic manuring. The objective of the study reported here was to determine the effect of manuring with an undersown catch crop, either autumn-incorporated or left on the soil surface as mulch for spring incorporation, and production system on the potato tuber content of microelements. The study involved a field experiment, which was conducted in 2009-2012. The following two factors were examined: I − manuring with undersown catch crop: control, farmyard manure, Persian clover, Persian clover + westerwolds ryegrass, westerwolds ryegrass, Persian clover − mulch, Persian clover + westerwolds ryegrass − mulch, westerwolds ryegrass − mulch; II − production system: integrated and organic. Potato tubers were sampled to determine microelement contents. The highest iron and zinc contents were recorded in the tubers of potato manured with autumn-incorporated Persian clover whereas boron content was the highest in the tubers of potato manured with Persian clover, regardless of when it had been incorporated, as well as an autumn-incorporated Persian clover + westerwolds ryegrass mixture. Organic potatoes contained more iron and boron whereas tubers grown in the integrated production system were higher in zinc, manganese and copper. Potato manuring with undersown catch crops and farmyard manure in both the production systems studied increased the potato tuber content of microelements, excluding copper and manganese.

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Poultry litter and fresh mulch of Elephant grass improve the organic potato production

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632020v5057585 ◽

2020 ◽

Vol 50 ◽

Author(s):

Renato Yagi ◽

Nilceu Ricetti Xavier de Nazareno ◽

Jackson Kawakami

Keyword(s):

Late Blight ◽

Production System ◽

Poultry Litter ◽

Potato Production ◽

Organic Production ◽

Elephant Grass ◽

Potato Tubers ◽

Organic Fertilization ◽

Organic System ◽

Marketable Potato

ABSTRACT The organic production system for potato is usually limited by the occurrence of diseases and nutrient shortage. In these cases, fresh grass mulch and organic fertilization can interact in the foliar late blight infestation and increase the yield and quality of marketable potato tubers, in the organic production system. Aiming to validate this hypothesis, four poultry litter doses (0 Mg ha-1, 10 Mg ha-1, 20 Mg ha-1 and 30 Mg ha-1), which were incorporated into the soil at the pre-planting stage of organic grown potato combined with the presence and absence of fresh mulch (60 Mg ha-1) composed of chopped Elephant grass, were tested. The incorporation of poultry litter into the soil at the pre-planting of potato or the use of fresh grass mulch after the potato hilling inhibits the late blight infestation on leaves, in the organic system. The application of fresh grass mulch after the hilling operation enhances the effect of organic fertilization at the pre-planting of potatoes. The pre-planting application of poultry litter increases the yield and decreases the specific gravities of marketable potato tubers in association with fresh grass mulch. The use of poultry litter at pre-planting and fresh grass mulch improve the sustainable potato cropping in the organic production system.

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Possibility of Limiting Mineral Fertilization in Potato Cultivation by Using Bio-fertilizer and Its Influence on Protein Content in Potato Tubers

Agriculture ◽

10.3390/agriculture10100442 ◽

2020 ◽

Vol 10 (10) ◽

pp. 442

Author(s):

Dorota Wichrowska ◽

Małgorzata Szczepanek

Keyword(s):

Amino Acids ◽

Potato Tuber ◽

Farmyard Manure ◽

Fertilization Rate ◽

Organic Fertilizers ◽

Mineral Fertilizers ◽

Catch Crop ◽

Potato Tubers ◽

Mineral Fertilization ◽

Tuber Protein

Potato protein is a valuable source of essential plant-derived amino acids, the composition of which is similar to that of chicken egg protein considering the amino acid reference. Many factors used in potato cultivation can modify its composition. The use of bio-fertilizers in potato growing offers a possibility of a better use of minerals from soil and organic sources and reducing the need for mineral fertilizers by activating minerals present in soil. The effect can be to improve not only the potato tuber yield but also the nutritional value. The aim of this study has been to determine the hanges in the content of crude protein and the composition of amino acids in potato tubers, depending on the application of the bio-fertilizer (UGmax), organic fertilizers (pea as a catch crop, straw, and farmyard manure (FYM)) as well as mineral fertilization (100% and 50% of the reference rate). The application of bio-fertilizer significantly increased the content of essential and non-essential amino acids in potato tuber protein. With the half-decreased mineral fertilization rate, bio-fertilizer most effectively increased the content of tyrosine, methionine, asparagine in potato tuber protein in the treatments with FYM or with a catch crop as well as without organic fertilization.

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Fluctuations of sodium, copper, zinc, iron and manganese in potato tubers in the organic and integrated production system

Journal of Elementology ◽

10.5601/jelem.2015.20.2.865 ◽

2016 ◽

Cited By ~ 3

Author(s):

Barbara Sawicka ◽

Piotr Barbaś ◽

Dominika Skiba

Keyword(s):

Production System ◽

Potato Tubers ◽

Integrated Production ◽

Copper Zinc ◽

Iron And Manganese

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Comparison of Aeroponics and Conventional Production System of Virus-free Potato Mini Tubers in Serbia

Агрознање ◽

10.7251/agren1902095b ◽

2019 ◽

Vol 20 (2) ◽

pp. 95

Author(s):

Zoran Broćić ◽

Mirko Milinković ◽

Ivana Momčilović ◽

Jasmina Oljača ◽

Biljana Veljković ◽

...

Keyword(s):

Production System ◽

Average Weight ◽

Potato Tubers ◽

Seed Potatoes ◽

In Vitro Plants ◽

Solid Media ◽

Conventional Production ◽

Two Systems ◽

Potential Opportunity

Virus free mini tubers are starting materials for the production of seed potatoes without the diseases. Conventionally, mini-tubers are produced from in vitro plants in various solid media. The aeroponics system refers to the process of growing plants in the air or in the fog environment without the use of soil or any other substrate. The aim of this study is to assess the application of aeroponics and conventional production system of virus-free potato mini tubers in Serbia. The experiment included three varieties of potatoes: Cleopatra, Kennebec and Agria. All three varieties were cultivated within two systems: aeroponics and conventional rooting in the substrate. In the aeroponics system, with all three varieties, an average of 17.87 mini tubers was obtained, which is 5.39 times more than in the conventional substrate. This ratio was the highest in the variety Kenebec (6.46), followed by Agria (5.71) and the lowest in Cleopatra (4.01). The average weight of mini tubers produced in the conventional substrate was higher by 3.49 g compared to the aeroponics system. The aeroponics system offers a potential opportunity to improve the production of mini potato tubers in Serbia.

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