Correlation of physical and chemical attributes of soil with sugarcane yield

Pesquisa Agropecuária Brasileira

Domingos Guilherme Pellegrino Cerri¹  Paulo Sérgio Graziano Magalhães¹ 

[1],Universidade Estadual de CampinasCampinas SP ,Brazil

关键词: Saccharum officinarum;    precision agriculture;    soil sampling;    spatial variation;    variation structure;    Saccharum officinarum;    agricultura de precisão;    amostragem de solo;    variação espacial;    estrutura de variação;   

DOI  :  10.1590/S0100-204X2012000400018

来源: SciELO

【 摘 要 】

The objective of this work was to evaluate the correlation between sugarcane yield and some physical and chemical attributes of soil. For this, a 42‑ha test area in Araras, SP, Brazil, was used. Soil properties were determined from samples collected at the beginning of the 2003/2004 harvest season, using a regular 100x100 m grid. Yield assessment was done with a yield monitor (Simprocana). Correlation analyses were performed between sugarcane yield and the following soil properties: pH, pH CaCl2, N, C, cone index, clay content, soil organic matter, P, K, Ca, Mg, H+AL, cation exchange capacity, and base saturation. Correlation coefficients were respectively ‑0.05, ‑0.29, 0.33, 0.41, ‑0.27, 0.22, 0.44, ‑0.24, trace, ‑0.06, 0.01, 0.32, 0.14, and 0.04. Correlations of chemical and physical attributes of soil with sugarcane yield are weak, and, per se, they are not able to explain sugarcane yield variation, which suggests that other variables, besides soil attributes, should be analysed.

【 授权许可】

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