NOTA

 

Análise foliar em feijoeiro. II — Diagnose da nutrição fosfatada^*

 

Leaf analysis in dry beans (Phaseolus vulgaris L.). II. diagnosis of phosphorus requirement

 

 

Rúter Hiroce; J. Romano Gallo; Hipólito A. A. Mascarenhas

 

 

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SUMMARY

During 1966 and 1967 a factorial trial (NP 2⁴) was installed in Red Yellow Latosol in the presence and absence of lime for drytaeans at Pariquera-Açu, State of São Paulo.
Phosphorus fertilization increased linear and significantly both dry bean yield and phosphorus content of the leaflets, independently of the liming. On the other hand, liming contributed to an increase in bean yield and calcium and magnesium content of the leaflets.
A statistically significant correlation between dry bean yield and phosphorus content in the leaflets could be established. Such correlation is represented by the linear regression equation: y = —417.66 + 3.422,5x (y = yield; x = % of P in total dry matter of the leaflet).

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Recebido gara publicação em 25 de junho de 1969.

 

 

* Trabalho apresentado na XXI Reunião Anual da Sociedade Brasileira para o Progresso da Ciência, realizada em Porto Alegre, Rio Grande do Sul, 1969.