Combining permanent beds and residue retention with nitrogen fertilization improves crop yields and water productivity in irrigated arid lands under cotton, wheat and maize

  title={Combining permanent beds and residue retention with nitrogen fertilization improves crop yields and water productivity in irrigated arid lands under cotton, wheat and maize},
  author={Mina Devkota and Christopher Martius and John P. A. Lamers and Ken D. Sayre and Krishna P. Devkota and Raj K. Gupta and O. Egamberdiev and Paul L. G. Vlek},
  journal={Field Crops Research},
Intensive soil tillage and mismanagement of irrigation water and fertilizers are increasing production costs, reducing soil fertility and crop water productivity and threatening the sustainability of crop production systems in the irrigated arid lands of Uzbekistan, Central Asia. Conservation agriculture (CA) practices combined with optimum nitrogen (N) management can counterbalance some of these adverse effects. Most work has been done in rainfed areas so there is less information available… 
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Uzbekistan’s economy depends to a great extent on agriculture, particularly on revenues from irrigated cotton (Gossypium hirsutum L.) production. Since poor soil fertility and high soil salinity are
Long-Term Tillage, Crop Rotation, and Nitrogen Fertilizer Effects on Wheat Yield under Rainfed Mediterranean Conditions
The combined long-term effects of tillage method and crop rotation on crop yield have not been studied in rainfed systems under Mediterranean climates. A field study was conducted from 1988 to 1994
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