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Response of new cotton variety (rassafa) to nitrogen fertilizer

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Charlie Warren
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Cotton (Gossypium hirsutum L.), as the greatest source of natural fibre, is one of the most valuable crops grown worldwide.

Like most major field crops, irrigation and nitrogen (N) fertilization are the most important two factors for improving cotton yield in term of quantity and quality.

As these represent the largest inputs in the best management practice for cotton production, the optimum water and N-fertilizer requirements of cotton should be closely evaluated.

The Rassafa cotton cultivar is a relatively new variety grown in the dry areas of the Eastern Mediterranean region.

So, water and nitrogen fertilizer requirements of this new cultivar need to be quantified and optimized.

In this context, as drip irrigation system is flexible enough to water both sides of plant row either simultaneously or alternatively, this study implemented full irrigation (FI) and both the regulated fixed partial rootzone drying irrigation (FPRD) (also called as regulated deficit irrigation) and alternate partial rootzone drying irrigation (APRD) through the drip fertigation system.

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Charlie Warren
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