Nasef, M., Shaban, K., Abd El-Hamid, A. (2009). EFFECT OF COMPOST, COMPOST TEA AND BIO-FERTILIZER APPLICATION ON SOME CHEMICAL SOIL PROPERTIES AND RICE PRODUCTIVITY UNDER SALINE SOIL CONDITION.. Journal of Agricultural Chemistry and Biotechnology, 34(4), 2609-2623. doi: 10.21608/jacb.2009.90823
M. A. Nasef; Kh. A. Shaban; Amal F. Abd El-Hamid. "EFFECT OF COMPOST, COMPOST TEA AND BIO-FERTILIZER APPLICATION ON SOME CHEMICAL SOIL PROPERTIES AND RICE PRODUCTIVITY UNDER SALINE SOIL CONDITION.". Journal of Agricultural Chemistry and Biotechnology, 34, 4, 2009, 2609-2623. doi: 10.21608/jacb.2009.90823
Nasef, M., Shaban, K., Abd El-Hamid, A. (2009). 'EFFECT OF COMPOST, COMPOST TEA AND BIO-FERTILIZER APPLICATION ON SOME CHEMICAL SOIL PROPERTIES AND RICE PRODUCTIVITY UNDER SALINE SOIL CONDITION.', Journal of Agricultural Chemistry and Biotechnology, 34(4), pp. 2609-2623. doi: 10.21608/jacb.2009.90823
Nasef, M., Shaban, K., Abd El-Hamid, A. EFFECT OF COMPOST, COMPOST TEA AND BIO-FERTILIZER APPLICATION ON SOME CHEMICAL SOIL PROPERTIES AND RICE PRODUCTIVITY UNDER SALINE SOIL CONDITION.. Journal of Agricultural Chemistry and Biotechnology, 2009; 34(4): 2609-2623. doi: 10.21608/jacb.2009.90823
EFFECT OF COMPOST, COMPOST TEA AND BIO-FERTILIZER APPLICATION ON SOME CHEMICAL SOIL PROPERTIES AND RICE PRODUCTIVITY UNDER SALINE SOIL CONDITION.
Soils, Water and Environ. Res. Inst., Agric. Res. Center, Giza, Egypt
Abstract
Two field experiments were conducted at El-Rowad village , Sahl- El-Hossinia , El-Sharkia Governorate, Egypt, during summer2007 and 2008 seasons to study the effect of bio-fertilizer, compost and compost tea or in combination with nitrogen levels (25 , 50 and 100 kg N/fed). The compost is prepared from (rice straw, Maize and faba bean); Compost tea is prepared as a water extract of plant soluble nutrients, while the bio-fertilizer was a strain of Azospirillum braselence NO 40 (salt tolerant PGPR strain). The compost was applied before rice planting, and bio-fertilizer was applied seed coating while compost tea was sprayed after 25- 50- and 75days from rice planting. The obtained results could be summarized as follows:
Application of compost, compost tea and bio-fertilizer combined with different levels of nitrogen mineral fertilizer led to increase significantly yield, weight of straw or grain (g) /plant, weight of 1000= grains (g) and yield index. The macronutrients N, P and K contents in rice straw and grains increased significantly with the application of compost, compost tea and bio-fertilizer in combination with different levels of N- mineral fertilizer, especially with the high levels as compared with N- mineral fertilizer levels applied alone. The combination of compost and /or compost tea and bio-fertilizer in addition to N- mineral levels enhanced the micronutrients (Fe, Mn, and Zn and Cu mg/kg) concentrations in rice straw and grains in both seasons. The effect of bio-fertilizer and other organic materials were due to lowering soil pH. Meanwhile, EC of the studied saline soil decreased due to the leaching of salts as a result of improving soil physical conditions. The amount of all soil available nutrients N, P and K (mg/kg soil) increased in the soil. Therefore Available Micronutrients Fe, Mn, Zn and Cu (mg/kg soil) also increased when compost, compost tea and bio-fertilizer were combined with different mineral N- fertilizer levels.
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