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Effects of Natural Zeolite Application under Foliar Spraying with Humic Aci...

Effects of Natural Zeolite Application under Foliar
Spraying with Humic Acid on Yield and Yield
Components of Cucumber (Cucumis sativus L.)
Hamid Reza Bozorgi 1 , Sirous Bidarigh 2 , Ebrahim Azarpour 1 , Reza Khosravi
Danesh 2 and Maral moraditochaee 1
Young Researchers Club, Lahijan Branch, Islamic Azad University, Lahijan, Iran
2. Department of Agriculture, Lahijan Branch, Islamic Azad University, Lahijan, Iran
Corresponding author email: Hamid Reza Bozorgi: bozorgish65@yahoo...
ABSTRACT: In order to study effects of zeolite application and foliar spraying of humic acid on yield
and yield components of cucumber (Cucumis sativus L.), an experiment during farming year 2011, in
Lahijan township (north of Iran), was conducted. The experiment was conducted in factorial format
based on randomized complete block design with three replications. Factors of experiment were
consisting of zeolite application with three levels (Z 1 : control (without zeolite application), Z 2 : 4 and
Z 3 : 8 ton/ha) and humic acid foliar spraying with three levels (H 1 : control (without foliar spraying with
humic acid), H 2 : 30, H 3 : 60 mg/liter). Measured traits were include fruit yield, number of fruits per
plant, fruit length and plant height. Results of experiment showed that the effect of zeolite application
and also humic acid foliar spraying on all traits was significant at 1% probability level. But interaction
effect only showed significant differences on fruit yield at 1% probability level. Among zeolite
application levels, 8 ton/ha zeolite application and between humic acid foliar spraying levels, 60
mg/liter spraying were superior.
Keywords: Cucumber. Zeolite. Humic acid. Yield. Iran
Cucumber (Cucumis sativus L.) is an important vegetable and one of the most popular members of the
Cucurbitaceae family (Lower and Edwards, 1986; Thoa, 1998). It is thought to be one of the oldest vegetables
cultivated by man with historical records dating back 5,000 years (Wehner and Guner, 2004). The crop is the
fourth most important vegetable after tomato, cabbage and onion in Asia (Tatlioglu, 1997), the second most
important vegetable crop after tomato in Western Europe (Phu, 1997).
Zeolite minerals are hydrated aluminosilicates of alkali or alkaline-earth metals, structured in a three
dimensional rigid crystalline network, formed by tetrahedral AlO 4 and SiO 4 , whose rings join in a system of
canals, cavities and pores. These minerals are characterized by the ease of retaining and releasing water and
exchanging cations without structural changes (Mumpton and magica, 1999; Kithome et al., 1999) and can
potentially be used in field or substrate cultivation (Harland et al., 1999). There are over 40 species of natural
zeolites, of which clinoptilolite is apparently the most abundant, both in soils and in sediments (Ming et al.,
1987).. http://zeolitpro.com/