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English :
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Effect of different tillage systems and soil conditioners on some soil chemical properties and status of nutrients
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Arabic :
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تأثير نظم الحرث المختلفه مع محسنات التربه علي بعض خصائص التربه الكيميائية وحالة العناصر بها
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| Abstract |
Field experiments were conducted during the two successive seasons (summer season 2010 using maize plants (Zea mays) and winter season 2010/2011) using barley plants (Hordum vulgare) at El-Gemmeiza Agricultural Research Station, El-Gharbia Governorate (clay soil) to evaluate the effect and residual effects of different tillage systems (shallow, chisel and moldboard plow) and some soil conditioners (FYM, sulphur and mixture of them) on improving some chemical properties and availability of some nutrients either macro or micro. Furthermore, economical analysis was done by calculating the net income and investment ratios to determine the economical treatment. The rate of farmyard manure (FYM) was 20 m3/fed., while sulphur rate was 200 Kg/fed. The experiments were conducted in a split plots in a randomized complete block design (RCBD) with three replicates. Results can be summarized as follows:
1- All plow kinds and all soil conditioners slightly decreased the soil reaction (pH). Furthermore, all plow kinds increased leaching the soluble salts and decreased soil salinity (EC), total soluble salts (TSS) and sodium adsorption ratio (SAR) values in both the two soil layers, especially chisel plow. While, all soil conditioners led to increase soil salinity.
2- All treatments led to significant increases in Ex. Ca, Mg and cation exchange capacity (CEC), while Ex. K was increased with different plow kinds and decreased with addition of soil conditioners. Whereas Ex. Na and ESP were significantly decreased with all treatments at the two soil depths in the two seasons.
3- All treatments clearly enhanced total nutrients status of the investigated soil.
4- Organic carbon (O.C, %) and the C/N ratio were slightly increased in surface and subsurface soil layers as a result of all treatments either plow kinds or soil conditioners.
5- All different treatments led to markedly increases in available NPK either with plow kinds or with soil conditioners.
6- Soil extractable metals (Fe, Zn, Mn and Cu) were increased with all treatments at the two soil depths in the two growing seasons.
7- Economical analysis indicate that the highest net income value (10961.88 L.E/fed.) was incorporated with using chisel plow with the addition of 20 m3/fed. of farmyard manure + 200 Kg/fed. of sulphur.
8- Thus, it is more useful to use those treatments (plow kinds and soil conditioners) with half of recommended dose of mineral fertilizers to get a markedly improve in both chemical properties and nutrients which reflect on high net income as well as to substitute a part of mineral fertilizers by soil conditioners to minimize the pollution resulted from the intensive use of it
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| Publication year |
2012
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| Pages |
968-995
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| Organization Name |
Soil, Water and Environment Research Institute (SWERI)
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| serial title |
Egypt . J. of Appl. Sci., 27 (12) 2012
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| Author(s) from ARC |
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| Agris Categories |
Soil chemistry and physicsSoil erosion, conservation and reclamation
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AGROVOC
TERMS |
Soil conditioners.
Tillage.
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| Publication Type |
Journal
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