تأثير الأسمدة العضوية و تصريف المنقط في بعض خصائص التربة الفيزيائية و نمو و حاصل قرع الكوسا Cucurbita pepo L

الملخص EN

A field experiment was carried out in the clay soil in the district of Daquq, south of Kirkuk province, to study the effect of the level of organic fertilizers and emitters discharge on some physical properties of the soil and the growth and holds pumpkin squash.

The Organic fertilizers were added of four different rates of 0, 10, 15 and 20 ton per hectares, the irrigation water was supplied by using drip Irrigation System and water was supplied of two discharge levels 3.93 and 7.86 Lh-1.

The seeds of pumpkin squash was planted on two lines and irrigated after depletion of 40% of available water.

Some of the physical properties of soil such us, mean weighted diameter, saturated hydraulic conductivity and infiltration water, plant growth indicators such us dry weight, early yield total yield.

The results showed a ,increased rate of mean weighted diameter water conductivity and infiltration water in the soil values with increasing the level of added organic fertilizer and low discharge of which achieved the highest 0.382 mm and 0.033 cm m -1 and 25.4 cm values when add 20 tons h-1 of organic fertilizers and discharge 3.93 liter h-1, respectively.

The results showed that the addition of organic fertilizers level of 20 tons h-1 and discharge 3.93 liter h-1 was gave a significant increase in plant length, dry weight, early yield and total yield of the plant 9.26 kg plant -1 and the sum total 25.96 tons h-1.hakguet h-1 added 20 tons of organic fertilizers.