Fertigation of humic substances improves yield and quality of broccoli and nutrient retention in a sandy soil

• DOI: 10.1002/jpln.201100062
• Publication Date: 2012-03-23T06:22:57Z
• Authors: El‐Metwally Selim; Ahmed Ali Mosa
• Keywords: Fertigation

Abstract There is lack of information available concerning the effect humic substances (HS) applied via fertigation on plant growth in sandy soils. Therefore, a field experiment was carried out at El‐Saff district (20 km southwest Cairo), Egypt, to investigate role HS water retention soil, yield and quality broccoli ( Broccoli oleracea L.) as well soil nutrient concentration retained after harvest. The consisted six treatments (50%, 75%, 100% recommended NPK‐fertilizer rate for combined with without application 120 L ha –1 ) complete randomized block design three replicates. Humic affected spatial distribution improved root zone. Furthermore, increased total marketable head diameter parameters i.e., soluble solids, protein, vitamin C). Higher concentrations were found heads plant‐available nutrients harvesting also higher, indicating an improvement fertility. In conclusion, can be judged interesting option improve status leading better growth.