Effect of polymers on soil properties water conservation and yield
1985
Alkofahe, F.
Effect of two soil conditioners, Agri-SC. and Aquastock polymers on the yield of wheat and tomato, on four different soils of extreme texture in Jordan were studied. Aquastock application significantly increased aggregate water stability, aggregation size, water retention, available water, plastic and liquid limits for all soils; bulk density decreased, while the soil porosity increased for all soils. Availability of Zinc, Copper, Iron and Manganese was insignificant for all soils. Tomato yield, length, root length and fresh and dry matter weight were increased for all soils, whereas dry root weight was not significantly affected. Agri-SC. had improved aggregate water stability and aggregation size for clay loam and silt loam soils; bulk density decreased and porosity increased for clay and silt loam soils only. Agri-SC. application did not affect water retention and available water for all soils; availability of Zinc, Manganese, Iron and Copper for all soils increased. Wheat yield was not significantly affected by Agri-SC
Показать больше [+] Меньше [-]