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Use of environmental friendly fertilizers in saline and saline sodic soils
Article 12: Volume 2, Number 1, Spring 2005 XML PDF (162 K)
Authors
Y. Ali; Z. Aslam
Abstract
Recommendations: In saline soils it is not recommended urea. It is recommended Ammonium Sulphate or Ammonium Nitrate. In saline soils pH is already high. When urea is applied, the pH of the soil becomes very high temporarily and due to this high pH, Urea is lost as a gas and Young seedlings die when become in contact with urea. To minimize gaseous, losses of urea or Ammonium sulphate, when the fertilizer is broadcasted, irrigated the field soon. In this way the fertilizer is dissolved into the water and absorbed in the soil. It is not recommended spreading fertilizer in standing water. Wait till the water is absorbed into the soil, then spread fertilizer it will remain in the root zone of the plant and most of the fertilizer is available to crop. It is not recommended phosphoric acid as fertilizer. In the experiments phosphoric acid may give more yields in all the crops as compared to DAP, single super phosphate and triple super
phosphate fertilizers.
Keywords
Environmental friendly; Fertilizers; Saline soil; Sodic soil
Main Subjects
Environmental friendly; Fertilizers; Saline soil; Sodic soil
References
1. Ali, Y. and Z. Aslam. (2002a). Nuclear Techniques Assisted Management of Salt-Affected Waste Lands and Brackish Water in Pakistan. Recommendations for high yield rice production from saline and normal soils. a pamphlet in Urdu.
2. Ali, Y. and Z. Aslam.. (2002b). Nuclear Techniques Assisted Management of Salt-Affected Waste Lands and Brackish Water in Pakistan. Use of zinc for high production of rice from saline lands. a pamphlet in Urdu
3. Ali, Y., Z. Aslam and F. Hussain, (2003a). Nuclear Techniques Assisted Management of Salt-Affected Waste Lands and Brackish Water in Pakistan. Production technology for higher yield of wheat from salt-affected soils. a pamphlet in Urdu,
4. Ali, Y., Z. Aslam and F. Hussain, (2003b). Nuclear Techniques Assisted Management of Salt-Affected Waste Lands and Brackish Water in Pakistan. Production for higher yield of Brassica from salt-affected soils. a pamphlet in Urdu.