Application of Zinc and Potassium under Drought and Irrigated Condition and its Effect on Grain Yield and its Components in, Chickpea

作者：Moemeni Fardin; Ghobadi Mokhtar^*; Jalali Honarmand Saeid; Shekaari Parviz

来源：The Philippine Agricultural Scientist, 2016, 99(3): 260-266.

• chickpea
• drought
• macro and micro nutrients yield
• potassium
• zinc

The effect of drought stress and application of different amounts of K and Zn fertilizers on yield and yield components of chickpea was evaluated in an experiment conducted in a Mediterranean climate. The experiment was performed as split plot-factorial based on randomized complete block design. The main plot was supplementary irrigation (I-1) and non-irrigation (I-0) while the subplot was combined treatments of four levels of Zn (0, 20, 40 and 60 kg ha(-1)) and three levels of K fertilizer (0, 50 and 100 kg ha(-1)). The results showed that supplementary irrigation, Zn and K affected grain yield and its components. Maximum production of chickpea (with most yield components) was recorded for supplementary irrigation and application of Zn and K fertilizers, but the maximum 100-grain weight was obtained in non-irrigation conditions. Grain yield in the I1Zn40K100 treatment was 46% more than that in the I0Zn0K0 treatment. Results for three-way interaction of treatments showed that the maximum (1856 kg ha(-1)) and minimum (864 kg h(-1)) production of grain yield were recorded in I1Zn40K100 and I0Zn0K0 treatments, respectively, that were positively affected by irrigation and fertilization. Grain yield for I-1, Zn-40 and K-100 treatment were 1667, 1366 and 1364 kg ha(-1), respectively, and were significantly more than those in treatments that involved non-irrigation and non application of fertilizer. Therefore, grain yield of chickpea can be increased under drought conditions by supplementary irrigation and application of Zn and K fertilizers.

• 出版日期2016-9