Field experiments were carried out on sweet pepper, Capsicum annuum L., cv. California Wonder, at the Experimental Farm of the Faculty of Agriculture, Moshtohor, Egypt, during the summer seasons of 2004 and 2005. Transplanting took place on 24 th March in both seasons. Studies aimed to investigate the effect of organic manure and/or mineral N-fertilizer with or without biofertilizer inoculation on growth, yield and quality of plants. The treatments used were 60 kg/feddan organic-N as biogas manure, 60 kg/feddan mineral-N as ammonium sulfate (20.5% N) or 30 kg organic-N + 30 kg mineral-N with or without Microbin as biofertilizer and foliar application with Delfan as amino acids, garlic extract or without foliar application.
Results show that using 30 kg organic-N + 30 kg mineral-N, improved plant growth, yield and fruit quality than those received nitrogen doses (60kg N/fed.) either in the organic or in the mineral form. Inoculating seeds and transplant's roots with Microbin gave good results than when no biofertilizer was added. Also, the treatments sprayed with Delfan (amino acids) gave good results as compared with garlic extract or without foliar application. Therefore, using 30 kg organic-N + 30 kg mineral-N/feddan combined with Microbin and spray with Delfan gave the best growth and increased early and total yield with the best fruit quality as compared with all other used treatments.
This increase reached 37.20 and 16.05 % as an average in both seasons for early and total yield respectively, as compared with plants supplied with 60 kg mineral-N without biofertilizer or spraying treatments. |
