تأثير إضافة البوليمر SAP و مسحوق الشمبلان و مستويات الري في بعض المعايير المائية و الاستهلاك المائي للذرة الصفراء

Abstract EN

A field experiment was conducted for the autumn season 2018 to evaluate the effectiveness of Super orbent Polymer (SAP) and Ceratophyllum powder and there effect on the sandy water parameters of sandy loam and water consumption of maize, where the coefficients containing different weight concentrations were distributed from SAP (0.4% , 0.2% and 4% ) of Ceratophyllum powder, and irrigation at three levels (in the net irrigation requirement, 125% of the net irrigation requirement, 150% of the net irrigation requirement) and the most important results were obtained: The water consumption of I1 (526) mm, while the amount of water added (502) mm and a decrease of 4.56% This reduced the role of both SAP and Ceratophyllum powder in increasing soil water retention capacity and improving its physical properties.

The highest water consumption (ETc) of I3 was 789 mm.

season-1 and decreased to 658 and 526 mm at I2 and I1 irrigation coefficients respectively, due to differences in the amount of water added and prepared in soil.

There was a decrease in saturated water conductivity values with an increase in the level of addition of SAP and Ceratophyllum powder.

The highest value of saturated water was 0.16 cm.

min-1 for the treatment of I1O1, while the value of water delivery was less than 0.4% of SAP powder.

Cm min-1 for the I3P2 transaction.

The base infiltration values decreased with the addition of the addition of SAP and the Ceratophyllum powder, with the highest value of the basal treatment rate of 8.4 cm min-1 for the treatment of I1O1, while the base tip value was added by adding 0.4% of the SAP powder to the treatment I3P2 1.2 cm min-1.