SOWING DATES AND MOLYBDENUM FOLIAR APPLICATION FOR TWO PEANUT CULTIVARS

Sérgio Iraide Bernardes Soares Filho,João Victor Silva Bernardes,Valdeci Orioli Júnior,Edson Lazarini

doi:10.28998/rca.v18i2.7175

Abstract

The study aimed to assess application efficiency of Mo doses through leaves in two sowing dates and different phenological stages on agronomic characteristics of two peanut cultivars. The experimental design was a randomized block with four replications, with the treatments arranged in a factorial design 2 x 2 x 6 x 2, being two cultivars (IAC Tatu and IAC 886), two sowing dates, six Mo doses applied to the leaves (0, 50, 100, 200, 400 and 800 g ha-1) and two application times (early flowering and early seed formation). Were evaluated the number of pods/plant, the number of grains/pod, the weight of 100 grains, the yield of grain, the pod production and protein, lipids and the Mo contents in the grains. The highest pod yields were obtained with sowing in November, for both cultivars. The IAC 886 presents a significantly higher production than IAC Tatu when sown in November. When the seeds were sown in March, the cultivars showed similar productions. Foliar application of Mo at flowering and pod formation did not affect the agronomic characteristics, protein and lipid contents in peanut grains. The increase in Mo doses increased the content of this micronutrient in the grains.

Highlights

The Brazilian peanut production is mainly concentrated at the North and West regions of Sao
At the West region, peanut has been cultivated in areas where once were pastures and sown in two times: October/November and February
Peanut has been cultivated in sugarcane renewing areas, usually during the month of November (Bolonhezi et al, 2005)

Summary

Introduction

The Brazilian peanut production is mainly concentrated at the North and West regions of SaoPaulo State. Peanut has been cultivated in sugarcane renewing areas, usually during the month of November (Bolonhezi et al, 2005). Some studies on peanut sowing times have shown that highest yields are achieved when the crop is implanted at the beginning of the raining season (Peixoto et al, 2008; Kasai et al, 1999). They shown that, even during the dry season, the postponement of the sowing time has a positive influence in the crop’s production (Crusciol et al, 2000)

Objectives

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Methods