Potassium fertilization of cauliflower and broccoli in a potassium-rich soil

作者：Silva Andre L P^*; Cecilio Filho Artur B; Mendoza Cortez Juan W; Lima Junior Joaquim A

来源：Ciencia e Investigacion Agraria, 2016, 43(1): 151-157.

DOI：10.4067/S0718-16202016000100014

• Brassica oleracea var. botrytis
• Brassica oleracea var. italica
• productivity

Cauliflower and broccoli are important vegetables but have lacking and divergent information about potassium (K) fertilization in soil with a high K content. Two experiments were carried out from 2-1-2010 to 5-20-2010 in Jaboticabal City, Sao Paulo, Brazil, aiming to evaluate the effect of different K doses (0, 50, 100, 150 and 200 kg ha(-1) K2O, in potassium chloride) on the yield of cauliflower 'Verona' and broccoli 'BRO 68' in Rhodic Eutrudox soil with a high K content. The broccoli and cauliflower responded positively but differently to potassium fertilization. The maximum yield of broccoli (12,476 kg ha(-1)) was obtained with 160 kg ha(-1) K2O, while the yield of cauliflower increased linearly with increasing K dose, yielding 38,285 kg ha(-1) with 200 kg ha(-1) K2O.

• 出版日期2016-4
• 单位Univ Estadual Paulista