Exploring the coupling mode of water and fertilizer for improving growth, fruit quality, and yield of the pear in the arid region.

3 Results 3.1 Effects of the amount of water and fertilizer on leaf nutrient change dynamics in pears 3.1.1 Effects of water and fertilizer dosage on total nitrogen in pear leaves As shown in Figure 1 , with the progress of the growth period, the leaves of both the current and perennial branches showed a trend of first decreasing and then slowly increasing.

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