بررسی اثر کود دامی و پلیمر سوپر جاذب بر عملکرد گندم تحت شرایط تنش خشکی.

To study the effects of Animal manure and superabsorbent polymer on yield and yield components of Wheat (Triticum aestivum L.) under drought stress condition, the experiment was carried out in a split-plot based randomized complete block design (RCBD) with four replications in 2011 at university of shahrekord. The drought treatments at two levels, including (I0: irrigation after 80 mm evaporation from Class A pan and I1: irrigation after 100 mm evaporation from Class A pan starting at flowering) considered as main-factor and animal manure and superabsorbent polymer (A200) with six levels )S1: control, S2: 100% animal manure (20 t/ha), S3: 100% superabsorbent polymer (100 kg/ha), S4: 50% animal manure+50% superabsorbent polymer, S5: 75% animal manure +25% superabsorbent polymer, S6: 25% animal manure+75% superabsorbent polymer considered as sub-factor. The data analysis this result showed that drought had a significant effect on grain yield, biological yield, harvest index. All of these traits were decreased in response to drought stress. Results showed that the effects of animal manure and superabsorbent polymers on grain yield, biological yield, harvest index. Also, the interaction of drought stress and animal manure and superabsorbent polymer on biological yield, grain yield was significant. The data analysis this result showed maximum yield grain 5441.53 (kg/ha) was obtained by using 100% animal manure (20 t/ha. The lowest grain yield 3404.73 (kg / ha) related to the treatment of stress and no used super absorbent polymer and animal manure.
The results of this study showed that the use of animal manure and superabsorbent polymer in drought stress conditions can be largely reduced damages and to allow the plant to offset some of the lost