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Comparison of potassium quantity-intensity relationships in tropical paddy soil under tillage and no-tillage systems after fifteen growing seasons

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  • Soni Isnaini

    (College of Agricultural Sciences (STIPER) Dharma Wacana, Metro, Indonesia)

  • Maryati

    (College of Agricultural Sciences (STIPER) Dharma Wacana, Metro, Indonesia)

  • A. Arivin Rivaie

    (National Research and Innovation Agency of Indonesia (BRIN), Cibinong-Bogor, Indonesia)

Abstract

The information on the behaviour of potassium (K+) in tropical paddy rice soils, which is important for a better understanding of the plant availability of K+ is still very limited. We compared the quantity-intensity (Q/I) relationships for K+ under conventional tillage and no-tillage systems in tropical paddy fields in the absence and presence of K+ fertiliser in the addition of nitrogen. The results showed that the values of the activity ratio for K (ARK) and potential buffering capacities (PBCK) in the no-tillage rice field were respectively 16% and 33% higher than that in the conventional tillage field. With the addition of K fertiliser, the value of exchangeable K in equilibrium (ΔK0) in the no-tillage paddy field was 67.9% greater than that in the conventional tillage field. This indicates that K fertilisation is more efficient when applied on a no-tillage paddy field. When the K fertiliser was added (49.8 kg K/ha), the application of N fertiliser at the rate of 115 and 184 kg N/ha resulted in a higher ARK value than that at the rate of 46 kg N/ha. This suggests that the simultaneous application of K and N fertiliser was able to increase exchangeable K in the soil. The application of no-tillage increased of the dry grain yield of rice (about 10%) compared with the application of conventional tillage. Meanwhile, there were significant relationships between the rice yield with the ARK and ΔK0. Moreover, the ARK was significantly correlated with K-uptake.

Suggested Citation

  • Soni Isnaini & Maryati & A. Arivin Rivaie, 2023. "Comparison of potassium quantity-intensity relationships in tropical paddy soil under tillage and no-tillage systems after fifteen growing seasons," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 69(1), pages 1-9.
    • Handle: RePEc:caa:jnlpse:v:69:y:2023:i:1:id:337-2022-pse
    DOI: 10.17221/337/2022-PSE
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    References listed on IDEAS

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    1. Anil ÇAY, 2018. "Impact of different tillage management on soil and grain quality in the Anatolian paddy rice production," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 64(7), pages 303-309.
    2. H.W. Scherer & E. Feils & P. Beuters, 2014. "Ammonium fixation and release by clay minerals as influenced by potassium," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(7), pages 325-331.
    3. R.W. Neugschwandtner & P. Liebhard & H.-P. Kaul & H. Wagentristl, 2014. "Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(2), pages 57-62.
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