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Irrigation and Melioration

Abstract

Influence of residue retention in different rates under various soil tillage methods on water use efficiency of crops in rotation is discussed in the article. The best results in the experiment with green gram (Phaseolus aureus L) variety “Durdona”were obtained in the treatment with minimum soil tillage and retention of 100% crop residue produced in the plot on soil surface for mulching. In this case, compared to other treatments, irrigation water use decreased for 12,2 to 16,4 mm ha-1, total water use for 9,4 to 10,8 mm ha-1 and irrigation water requirement for 19,5 to 20,9 mm ha-1. Similar to green gram results were achieved in the experiments with cotton and maize under application of minimum soil tillage and 100% residue retention.

First Page

26

Last Page

27

References

1. http://ecology-education.ru/index.php?action=full&id=351 2. Мустафаев Ж.С., Рябцев А.Д. «Адаптивно-ландшафтные мелиорации земель в Казахстане», г. Тараз – 2012 год, 528 ст. 3. Будыко М.И. Эволюция биосферы. - Л.: Гидрометеоиздат, 1984. - 488 с. 4. Икрамов Р.К. Принципы управления водно-солевым режимом орошаемых земель Средней Азии в усло- виях дефицита водных ресурсов. –Т.: Гидроингео, 2001. – С. 46-55.

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