Effect of irrigation levels and organic compost on okra plants (Abelmoschus esculentus l.) grown in sandy calcareous soil

Abstract

Field experiments were conducted on the growing seasons 2008 and 2009 at a private farm located at a newly reclaimed sandy area, El-Saff, Giza governorate, Egypt to evaluate the drip irrigation levels in combination with equal two types of organic fertilizers for an okra crop. The effect of three irrigation levels 1198.8 (I 1 ), 1798.2 (I 2 ) and 2397.6 (I 3 ) m3/acre with drip in conjunction with two organic fertilizers (composted plant residues and chicken manure at the rate of 6 m 3 / acre ) were studied on growth and yield response, using split block design. The results of drip irrigation in conjunction with two types of organic fertilizers were evaluated in terms of growth , yield, water use efficiency and nutrients uptake of the crop. The study indicated that irrigation water quantity 1798.2 (I 2 ) m3/acre met through drip irrigation along with the two types organic fertilizers gave the highest yield (3.3 M g/acre) with 104% increase in yield as compared to I 1 and I 3 . It can be seen that the plant growth and yield were greater in drip with chicken manure as compared to plant residues. The obtained results clear that NPK uptake were significantly affected by water levels and both plant residues and chicken manure. The additional more of irrigation water caused on increase in the uptake of N P K and if compared to the lowest level of irrigation water it increased the growth parameters in expense of okra yield.

Response of okra (Abelmuschus esculenthus L. Moench) to combined organic and inorganic foliar fertilizers

“…This finding is consistent with the observation of earlier researchers on the integration of organic manure with inorganic soil-applied fertilizer for okra (Akande et al 2010;Abd El-Kader et al (2010) and other crops such as maize (Makinde and Ayoola 2008), rice (Satyanarayana et al 2007), sorghum (Bayu et al 2006), and sweet maize (Uwah et al 2011). Foliar fertilizers are fast acting because the nutrients are absorbed at the site where they are readily utilized.…”

“…According to Garge and Bahla (2008), PM supplies phosphorous more readily to plants than other organic sources. In another study, Abd El-Kader et al (2010) reported that manure from poultry increased okra yield and water use efficiency than composted plant residue.…”

Effects of Deficit Irrigation and Chicken Manure Interactions on the Growth and Yield of Okra in a Pot Experiment

“…This shows that chicken manure has beneficial effects on okra yield. The result is in conformity with earlier investigators, Abd El-Kader et al (2010), Rajpaul et al (2004), Estefanous and Sawan (2003), Rajpaul et al (2004) El-Nemer et al (2005, Faten and Ismaeil (2005) and Siddiqui et al (2009) who reported the beneficial effect of chicken manure on growth and yield of different vegetables.…”

Integrated effect of different N-fertilizer rates and bioslurry application on growth and N-use efficiency of okra (Hibiscus esculentus L.)

“…It is a chief vegetable crop grown for its immature pod that can be used as a boiled or fried vegetable, or it may be added to salad or soup (Kashif et al, 2010). Okra plays an immense role in the human diet, providing carbohydrates, fats, proteins, vitamins, and minerals (Abd El-Kader et al, 2010). Okra is rich in unsaturated fatty acids, like linoleic acid, that are generally deficient in the human diet (Savello et al, 1980).…”