A zab tápelemfelvétele a tenyészido folyamán

Translated title of the contribution: Nutrient uptake in oats in the course of the vegetation period

I. Kádár, Borivoj Lásztity

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In an 8-year, small-plot, field NPK fertilisation experiment on chernozem loam with lime deposits, studies were made on the element uptake (N, P, K, Ca, Mg, Fe, Mn, Zn, Cu) of spring oats as a function of the major phenophases and the NPK supplies. The soil of the growing site was originally supplied well with Mn, satisfactorily with Mg and Cu, moderately well with N and K, and poorly with P and Zn. The ploughed layer contained 5% CaCO3 and 3 % humus. The experiment involved 4Nx4Px4K=64 treatments in 2 replications, giving a total of 128 plots. Plant samples were taken at the end of tillering and at shooting, heading and harvest (grain, straw) from 4 running metres on each occasion. The results of the examinations can be summarised as follows: 1. Intensive accumulation occurred during the shooting stage for N, P, K, Ca, Mg, Mn and Zn, in the heading stage for Fe and during ripening (in the generative phase) for Cu. 2. At harvest an average of 76% of the N, 61% of the P, 16% of the K, 11% of the Ca, 46% of the Mg, 55% of the Fe, 26% of the Mn, 80% of the Zn and 74% of the Cu was found in the grain. It can thus be seen that N, P, Zn and Cu accumulated chiefly in the grain and K and Ca in the by-products, while Fe and Mg are divided approximately equally between the main and by-products. In the case of combine harvesting, when the straw remains in the field, the soil is chiefly depleted of N and P during the cultivation of oats. 3. At a grain yield level of 5-6 t/ha, plus the relevant straw yield, oats can be expected to absorb a maximum of 150-160 kg N, 150-170 kg K (180-200 kg K2O), 30-40 kg P (70-90 kg P2O5), 30-40 kg Ca, 15-18 kg Mg, 1.2-1.4 kg Fe, 1.1-1.4 kg Mn, 110-120 g Zn and 100-110 g Cu. 4. When determining the nutrient (fertiliser) requirements of the planned yield, 25-30 kg N, 25-30 kg K2O, 10-15 kg P2O5, 5-6 kg Ca and 2-3 kg Mg should be calculated for each ton of grain yield + straw. The specific microelement requirements arc around 200 g for Fe and Mn and around 20 g for Zn and Cu. The specific contents may vary over a wide range of values as the result of the ion antagonisms and synergisms which modify supplies and uptake.

Original languageHungarian
Pages (from-to)529-538
Number of pages10
JournalNovenytermeles
Volume46
Issue number5
Publication statusPublished - Oct 1997

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nutrient uptake
oats
straw
vegetation
heading
byproducts
grain yield
uptake mechanisms
fertilizer requirements
plant micronutrients
synergism
tillering
humus
soil
ripening
ions
nutrients
sampling

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

A zab tápelemfelvétele a tenyészido folyamán. / Kádár, I.; Lásztity, Borivoj.

In: Novenytermeles, Vol. 46, No. 5, 10.1997, p. 529-538.

Research output: Contribution to journalArticle

Kádár, I & Lásztity, B 1997, 'A zab tápelemfelvétele a tenyészido folyamán', Novenytermeles, vol. 46, no. 5, pp. 529-538.
Kádár, I. ; Lásztity, Borivoj. / A zab tápelemfelvétele a tenyészido folyamán. In: Novenytermeles. 1997 ; Vol. 46, No. 5. pp. 529-538.
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