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The Effect of Fertilizers in Amidohydrolases enzymes in sunflower (Helianthus annuus) Rhizoshper | ||
| Al-Qadisiyah Journal For Agriculture Sciences | ||
| Article 1, Volume 6, Issue 2, 2016, Pages 165-173 PDF (0 K) | ||
| DOI: 10.33794/qjas.2016.115307 | ||
| Author | ||
| Luma .S.J. Al-Taweel | ||
| College of Agriculture / University of Al-Qadisiyah | ||
| Abstract | ||
| To study the enzymes activity for (Amidase , Urease , L-Asparaginase , L-Glutaminase and L-Aspartase) in sunflower plant rhizosphere in two different textures and the effect of the fertilizers kinds (mineral fertilizer , organic fertilizer and biofertilizer) in enzymes activity , two sites were chosen , the first was clayey silt texture and the second was sandy loam texture were fertilized in one level for every kind of fertilizers . The mineral fertilizer (160N kg.h-1 were added in two times before the cultivated and the second before flowering and 80 kg. P2O5 kg.h-1 were added before cultivated and 80kg K2O kg h-1 were added before cultivated). Organic fertilizer (poultry manure) was added as one level 10 Ton.h-1 and the bio fertilizer (Mikro-kondi) were added spraying 5 letter.h-1 in two times when start of vegetation about (6-8) leaves and the second spray before flowering about 4 weeks after the first treatment . The results were summarized as : • Increasing of enzyme activity for all enzymes in rhizosphere than the bulk soil. • The enzymes activity in clayey silt texture were increased than the enzymes activity in sandy loam texture in all fertilized treatments. • The organic fertilizer has high values than the author fertilizer kinds in enzymes activities and it arranged as follow : Organic fertilizer biofertilizer mineral fertilizer control The highest enzymes activities values were in Amidase and the lowest were in L-Asperginase and it arranged as follow : Amidase L-Aspartase Urease L-Glutaminase L-Asparaginase | ||
| Keywords | ||
| Rhizosphere; Amidase; Aspartase; urease; glutaminase; Asparaginase | ||
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