Impact of sowing distances andfertilization regimes ongrowth andproductivityof wheat and faba beanunder intercropping system

Abstract EN

Two field experimentswere conducted at Etay El-Baroud Agricultural Research Station, El-Beheira Governorate to study the effect of wheat and faba bean sowing distancesand mineral nitrogen fertilizer (N) + mycorrhizaon growth and productivityunder intercropping system during 2018/2019 and 2019/2020 growing seasons.

Faba beanwas sowing at three hill spaces i.

e.

10 cm (D₁), 20 cm (D₂) and 30 cm(D₃) and five fertilization regimes of wheat i.

e.

168kg mineral nitrogen ha^-1as a recommended dose (100% N), 113kg mineral nitrogen ha^-1(75% N), 84kg mineral nitrogen ha^-1(50% N), 113 kg mineral nitrogen ha^-1(75% N) + mycorrhiza and84 kg mineral nitrogenha^-1(50% N) + mycorrhiza (F₁, F₂, F₃, F₄ and F₅, respectively).

Faba bean sowing distance 30 cm (D₃) gave the highestwheat shoot dry weight, leaf area ( at 75 and 90 days from sowing), yield, its attributes, leaf content of chlorophyll, NPK % in dry leaves and grains content of protein in contrast it decreased plant height of wheat.

Respect to fertilization regimes, the results confirmed that 113 kg mineral nitrogen ha^-1 + mycorrhiza (F₄) had superior effecton most studied characters of wheat and faba bean.

The interaction ofsowing distances of faba bean and fertilization treatments of wheat it significantly affectedon wheat grain yield ton ha^-1, the physiological characters and land equivalent ratio (LER).

Itis concluded that, sowing faba bean at30cm (D₃) hill space with 168 kg mineral nitrogenha^-1(recommended dose) or 113 kg mineral nitrogen ha^-1(75% N) + mycorrhiza fertilizer for wheat were suitable for increasing productivity and total net return.