Enhancing the efficency of rock phosphate in saline soil as an environmental friendly alternative for p- manufactured fertilizers and its effecton maize quality and productivity [electronic resources].

By: Contributor(s): Language: English Summary language: Arabic Description: p.1053-1071Other title:
  • زيادة كفاءة صخر الفوسفات في الأرض الملحية كبديل بيئي آمن للمصادر المعدنية للأسمدة الفوسفاتية وأثره علي جودة و إنتاجية الذرة [Added title page title]
Uniform titles:
  • Mansoura University journal of soil sciences and agricultural engineering, 2013 v. 4 (10) [electronic resources].
Subject(s): Online resources: In: Mansoura University Journal of Soil Sciences and Agirucultural Engineering 2013.v.4(10)Summary: Two field experiments were conducted to enhance the efficiency use of rock phosphate, (RP) in a saline soil at El-Qantra Sharq, Ismailia Governorate, Egypt during the two successive summer seasons of 2011 and 2012. The rock phosphate (RP) was used as an environmental fiienclly alternative for P mineral fertilizers after aUeviating the adverse effects of salt stress on soil and plant by applying compost, (CO) and the phosphate dissolving bacteria, (PDB) Bacillus megaterium var. phosphaticum, whether solely or in combinations with the rock phosphate. The effects of RP, compost and biofertilization applied solely or in combinations on maize grains yield and its quality as well as the macronutrients N, P and K and micronutrients Fe, Mn and Zn contents and uptake values were studied. RP was added at three rates RPO, RP1 and RP2 corresponding to 0,31 and 47 kg P ha-1• The obtained results could be summarized as follows: the values of weight of grains plant-1 ,100-grain weight and grains yield significantly increased due to the different treatments relative to the control. The highest values of weight of grains plant-1 and grains yield (518g and 2.81 Mg ha-1), respectively were attained due to application of RP2 +compost. While, the highest one for 100-grain weight i.e. 58.9 g was achieved due to the treatment RP1+ compost, Uptake values of N, P and K as well as Fe, Mn and Zn by maize grains increased significantly as a result of addition of the treatments solely or in combination with rock phosphate.
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Two field experiments were conducted to enhance the efficiency use of rock phosphate, (RP) in a saline soil at El-Qantra Sharq, Ismailia Governorate, Egypt during the two successive summer seasons of 2011 and 2012. The rock phosphate (RP) was used as an environmental fiienclly alternative for P mineral fertilizers after aUeviating the adverse effects of salt stress on soil and plant by applying compost, (CO) and the phosphate dissolving bacteria, (PDB) Bacillus megaterium var. phosphaticum, whether solely or in combinations with the rock phosphate. The effects of RP, compost and biofertilization applied solely or in combinations on maize grains yield and its quality as well as the macronutrients N, P and K and micronutrients Fe, Mn and Zn contents and uptake values were studied. RP was added at three rates RPO, RP1 and RP2 corresponding to 0,31 and 47 kg P ha-1• The obtained results could be summarized as follows: the values of weight of grains plant-1 ,100-grain weight and grains yield significantly increased due to the different treatments relative to the control. The highest values of weight of grains plant-1 and grains yield (518g and 2.81 Mg ha-1), respectively were attained due to application of RP2 +compost. While, the highest one for 100-grain weight i.e. 58.9 g was achieved due to the treatment RP1+ compost, Uptake values of N, P and K as well as Fe, Mn and Zn by maize grains increased significantly as a result of addition of the treatments solely or in combination with rock phosphate.

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