INFLUENCE OF ORGANIC AND BIO CONDITIONERS ON CALCAREOUS SOIL PROPERTIES AND YIELD OF BROAD BEAN PLANT

Abstract

A field experiment was conducted on calcareous soil at El- Nubaria (private farm at the 10,000 Fed Village), El- Behera Governorate for two successive winter seasons (2015- 2016) and (2016- 2017) . Broad bean plant ( Vicia faba . Nubaria 1) was used as a tested plant to study the efficiency of some conditioners, compost (town refuse), potassium humate as organic and Rhizobium leguminosarum bv. Viceae strain ICARDA 441 as bio fertilizers on some calcareous soil properties and yield of broad bean. The treatments were: A-The cultivation methods (row and strew). B-The conditioners: organic (compost 10 ton fed-1 and potassium humate 15 L fed-1) and bio (Rhizobium leguminosarum bv. viceae strain ICARDA 441). Results indicated that, EC, pH and CaCO3 % of the studied soil were decreased, where OM was increased as a result of using both organic and bio conditioners compared to the control treatment. An improvement in soil physical properties as affected by soil conditioners was observed. Wherever a slight decreased soil bulk density (BD), an increase in total porosity (TP) and soil aggregation as dry and wet stable aggregates at using organic conditioners than biofertilizer were occurred. As well as soil hydraulic conductivity (HC) and moisture content at both field capacity (FC) and available water (AW) were increased compared to the control. Town refuse compost application achieved the highest biological, grain yield and 100 grains weight of broad bean plant followed by potassium humate treatment. Generally, the different soil properties and crop yield of broad bean plant grown on calcareous soil was more affected by the row cultivation method, town refuse compost and potassium humate, than bio fertilizer addition compared to the control.