Practice Abstract 43 - Chick pea cultural guide – Portugal – FERTILISER REQUIREMENTS

Short title (native language): 
Chick pea cultural guide – Portugal – FERTILISER REQUIREMENTS

Short summary for practitioners (native language): 
Chickpea is a self-sufficient nitrogen crop. Plants mostly use atmospheric nitrogen through the symbiotic relationship they establish with a genus of soil bacteria (Mesorhizobium). This symbiosis relationship begins in the early stages of crop development (about 6 weeks after sowing) and can be observed through the formation of nodules in plant roots. So, due to this symbiosis, chickpea do not require nitrogen fertilization throughout the crop cycle.

However, nodule formation is not immediate so it´s important to apply a small amount of nitrogenous fertilizer (20-30 nitrogen units) at sowing.
At sowing also apply 60-70 (P2O5) phosphorus units and 20-30 (K2O) potassium units (considering the soil analysis, these values should be adjusted).

In pre-flowering, a boron (B) leaf application is very important to achieve higher flowering rates.

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