Effect of tillage practices and application of organic materials on some properties and productivity of calcareous soil [electronic resource].
Language: English Summary language: Arabic Description: p.1827-1845Other title:- تأثير عمليات الخدمة وإضافة المواد العضوية على بعض خواص وإنتاجية الأراضى الجيرية [Added title page title]
- Minufiya journal of agricultural research, 2007 v. 32 (6) [electronic resource].
Includes references.
A field experiment was conducted at Nubaria Agricultural Experimental Station through the winter season (2004-2005) and Summer Season (2005) to study the impact of tillage practices, especially plough depth and adding of organic materials on some properties of calcareous soil and its productivity. The experiment was laid out in a split design with three replicates. Chisel plough was used for the depth of 20 cm. While, the subsoiler plough was utilized for the depths of 40 and 60 cm. The plough depths were placed in the main plots. The used organic materials were Farmyard manure by the rate of (10 and 20m³/f) and Bia-fertilizer as well as the mixture of Farmyard manure by the rate of (10m³/f) and Bio-fertilizer which, placed In the subplots. The obtained results indicated that, plough practices and application of organic amendments resulted in a substantial improvement of the soil properties as well as yield of Wheat and Sorghum. Water stable aggregates (WSA), total aggregates (T. Agg.), mean weight diameter (MWD) and hydraulic conductivity (Ks) were intensified by either plough practices or organic amendments application under Wheat crop than Sorghum crop. The highest values of large aggregates having a diameter (8-2mm), (MWD) and (Ks) are (39.61%) and (2.82mm) and (1.38m\day) respectively, which attained for sails tilled by chisel plough for (20 cm) depth and received (20m³/f) farmyard manure under Wheat. The Increase in total aggregates was realized by using chisel Plough. Using the subsoiler plough for the depth of 60 cm intensified the (Ec) values of the deeper soil layers (40-60 cm) for all organic materials treatments. The organic matter content of the top soil layers (0-20 cm) increased as the rate of farmyard manure application increased. The highest content of available NP for soil was achieved by applying 20m³/fed farmyard manure under the use of chisel plough, while the highest available P content is attained for top soil layers after harvesting of Sorghum than after harvesting of Wheat. The highest grain and straw yield of Wheat crop were achieved by using the subsoiler plough for the depth of 60 cm and application farmyard manure (20m³ / f). However, the increase of Sorghum grain yield was realized by subsoiling plough for the depth of 60 cm and the application of (10m³/f) farmyard manure mixed with Bia-fertilizer.
Summary in Arabic.
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