Abstract
Summary Wheat straw was incorporated in microplots at three different rates (2, 5 and 10 tons per hectare) two times at 3 months interval and its effect on organic carbon, the nutrient status and Azotobacter population were studied. Addition of wheat straw increased the total organic carbon, humin carbon, humus carbon and total nitrogen content of the soil. The magnitude of increase depended upon the amount of straw added. Addition of straw brought about immobilization of nitrogen during the first two months only and the rate of immobilization was more pronounced with the higher rates of straw application. The available phosphorus and water holding capacity of the soil increased progressively with higher rate of straw application. Azotobacter population and anaerobes growing on nitrogen free medium were stimulated with the increased rate of straw application.
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Schedule a callMore From: Zentralblatt fuer Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abteilung: Mikrobiologie der Landwirtschaft, der Technologie und des Umweltschutzes
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