EFFECT OF FERTIGATION ON YIELD AND WATER USE EFFICIENCY ON CORN IN A TAPE IRRIGATION SYSTEM

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KARIMI A.; HOMAEI M.; MOEZ ARDALAN M.; LIAGHAT A.; RAIESI F.

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Journal: Year:2006 | Volume:12 | Issue:3 Page(s): 561-575

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Title

EFFECT OF FERTIGATION ON YIELD AND WATER USE EFFICIENCY ON CORN IN A TAPE IRRIGATION SYSTEM

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Keywords

FERTIGATIONQ3

FORAGE CORNQ2

TAPE IRRIGATIONQ3

WATER USE EFFICIENCYQ2

YIELDQ3

Abstract

The increasing demand for food as a result of population growth has led to more pressure on the limited water resources for irrigation. For this reason, increase of YIELD per unit of water is more important as compared with YIELD per unit of land. Chemical nutrients are taken up by plant roots in solution form. Thus, an adequate amount of soil moisture is essential to facilitate this process. In Iran, fertilizers are mainly applied directly to soil. In such conditions, the YIELD and fertilizer use efficiency are usually low. The simultaneous application of fertilizers and irrigation water is an appropriate alternative to increase the efficiency of applied water and fertilizers. The objective of this study was to investigate the effect of various irrigation amounts on YIELD components, efficiency of applied water and fertilizers when used as FERTIGATION. Consequently, a field experiment was carried out with FORAGE CORN as a complete randomized design with 20 treatments and 3 replicates. The fertilizers were applied by FERTIGATION. Four levels of the water (60, 80, 100 and 120% treatments I1 to I4) and five rates of the recommended fertilizers (0, 60, 80, 100, and 120% treatments F0 to F4) were applied. The recommended amounts consisted of 500 kg C0(NH2)2, 50 kg KCL, 40 kg FeSO4, 40 kg MnSO4, 75 kg ZnSO4, 20 kg CuSO4, and 20 kg H3BO3 per ha. TAPE IRRIGATION was used for every treatment. The results indicated that in FERTIGATION method, there were significant differences (p<1%) in total dry matter, grain YIELD and biomass between treatments. Treatment I4 with 19376 kg ha-1 dry matter, 15477 kg ha-1 biomass, and 3899 kg ha-1 grain YIELD and treatment I-1 with 9765 kg ha-1 dry matter, 8480 kg ha-1 biomass, and 1284 kg ha-1 grain YIELD had maximum and minimum YIELD respectively. Amounts of water used by the treatments from I1 to I4 during growing season were 6630, 7470, 8580 and 9980 m3 ha-1 respectively. Also treatment F4 with 16280 kg ha- 1 dry matter, 13756 kg ha-1 biomass, and treatment F1 with 14212 kg ha-1 dry matter, 11311 kg ha-1 biomass had maximum and minimum YIELD respectively. The result indicated there was no significant difference between treatment F2, F3 and F4. There were significant differences in WATER USE EFFICIENCY (WUE) between I1 and other treatments. On the basis of dry matter WUE, biomass WUE, and grain YIELD WUE, treatment I3 with 2.25, 0.18 and 0.42 kg m3 and treatment I1 with 1.47, 0.13 and 0.19 kg m3 had maximum and minimum WUE respectively. The results showed that by increasing YIELD, WATER USE EFFICIENCY increased and affected by fertilizers treatments. Finally, results indicated there were significant differences in harvest index (HI) between I1 and other treatments but there was no significant difference between I2, I3, and I4. Treatment I4 with 0.26 and I1 with 0.15 had maximum and minimum HI respectively. Also treatment F1 with 0.26 and F4 with 0.17 had maximum and minimum HI respectively. The results indicated that FERTIGATION method provided the nutrients in readily available forms for plant uptake. Thus due to higher availability of nutrients, YIELD and fertilizer use efficiency increased, which in turn increased the WATER USE EFFICIENCY.

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APA: Copy

KARIMI, A., HOMAEI, M., MOEZ ARDALAN, M., LIAGHAT, A., & RAIESI, F.. (2006). EFFECT OF FERTIGATION ON YIELD AND WATER USE EFFICIENCY ON CORN IN A TAPE IRRIGATION SYSTEM. JOURNAL OF AGRICULTURAL SCIENCES, 12(3), 561-575. SID. https://sid.ir/paper/7571/en

Vancouver: Copy

KARIMI A., HOMAEI M., MOEZ ARDALAN M., LIAGHAT A., RAIESI F.. EFFECT OF FERTIGATION ON YIELD AND WATER USE EFFICIENCY ON CORN IN A TAPE IRRIGATION SYSTEM. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2006;12(3):561-575. Available from: https://sid.ir/paper/7571/en

IEEE: Copy

A. KARIMI, M. HOMAEI, M. MOEZ ARDALAN, A. LIAGHAT, and F. RAIESI, “EFFECT OF FERTIGATION ON YIELD AND WATER USE EFFICIENCY ON CORN IN A TAPE IRRIGATION SYSTEM,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 12, no. 3, pp. 561–575, 2006, [Online]. Available: https://sid.ir/paper/7571/en

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