Zinc and boron for groundnut production grown on sandy soil [electronic resource].

Includes references.

Groundnut (Arachis hypogaea L) cv. Giza 5 during two successive seasons was put under a field study in sandy soil at Ismalia Agric. Res. Station to evaluate the effect of zinc (0,10,20 and 30 kg Zn SO₄/fed. as Zn0, Zn1, Zn2 and Zn3, respectively) and boron (0, 1, 1.5 and 2 kg H₃BO₃. as B0, B1, B2 and B3, respectively) applied to soil .in a split plot design on yield, yield components, seed oil and nutrient contents. Available soil Zn and B contents after harvest were determined. The obtained results could be summarized in the following: 1- Available Zn or B in soil after harvest (average of two seasons) was increased as. a result of its increasing rate. The Zn3 B2 treatment gave the height available Zn or B value. 2- Seed yield, pod yield and seed weight/plant (for the combined data) increased significantly by increasing Zn or B rate up to Zn2 or B3, respectively. 3- Seed oil content and oil yield were positively affected by Zn or B application. 4-. For combined data, Zn and B rates together didn't achieve any significant increases for seed yield, pod yield, seed weight/plant. seed dry matter and oil yield. The highest value for the above characters was attained in Zn2 B2 treatment. 5- Zinc and B fertilization bad a significant effect on the seed . oil content for the combined data and the highest oil content occurred in Zn2 B2 treatment. 6- Zinc or B seed contents increased by increasing application rates. The maximum value of Zn and B was recorded in Zn3 B3 treatment. 7- Three multiple linear regression equations were given. the first between seed yield and Zn and B application rates, the second between seed yield and some studied variables and the third between seed oil content and both available Zn and B in soil after harvest and B content in seeds. Such equations were significant(positive).

Summary in Arabic.

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