Zinc and magnesium fertilization for growing japanese cucumber on basic soil with high residual phosphorus and potassium | การทดสอบปุ๋ยสังกะสีและแมกนีเซียมเพื่อการปลูกแตงกวาญี่ปุ่นในดินด่างที่มีฟอสฟอรัสและโพแทสเซียมตกค้างสูง
2009
Naruenatre Kietsermkajorn(Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Soil Science) E-mail:[email protected] | Somchai Anusontpornperm(Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Soil Science) | Irb Kheoruenromne(Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Soil Science) | Pariyanuj Chulaka(Kasetsart University, Bangkok (Thailand). Faculty of Agriculture. Department of Horticulture)
Trial on zinc and magnesium fertilization for growing Japanese cucumber on basic soil with high residual phosphorus and potassium was conducted at Huai Luek Royal Project Development Centre, Chiang Mai province. It was aimed at examining the effect of Mg and Zn applied at different rates on yield of Japanese cucumber and the uptake of some plant nutrients by this plant. The experiment was in randomized complete block design (RCBD) which 10 treatments of different rates of Mg and Zn fertilizers and their combination, each with four replications. Results showed that the use of Mg and Zn fertilizers at three different rates, the yield of fresh Japanese cucumber fruits was not higher than that of the control. The lowest yield of 12.6 t/ha was obtained from treatment with the application of 0.1 g ZnSO4.7H2O. Addition of Mg plus Zinc at the rate of 3:0.3 g tended to give the highest yield of 22.9 t/ha. However, there was no statistical difference in yield among treatments. Application of Mg and Mg plus Zn at the highest rates significantly increased plant P uptake (0.6 and 0.7 percent, respectively) into leaves as compared to the control, similar to K uptake into leaves in all added Mg and Zn fertilizers. There was no correlation between addition of Mg and Mg uptake. Nevertheless, the accumulation of Zn in leaves tended to be higher when applied with Zn fertilizer at the highest rate.
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