滴灌和微喷对核桃耗水量、产量及坚果品质的影响

通过大田试验,采用相同的灌溉制度,研究了滴灌和微喷两种灌溉方式对成龄核桃树耗水量、产量及坚果品质的影响。试验结果表明:①滴灌条件下核桃树在萌芽及开花期、果实膨大期、硬核期及成熟期的平均日耗水强度分别为2.9 mm、3.97 mm5、.55 mm及3.39 mm,微喷核桃树的耗水规律与滴灌略有不同,果实膨大期及成熟期稍大;两者的累积耗水量相同。②滴灌的平均水分利用效率比微喷高,滴灌的产量比微喷高15%。③两种灌溉方式下,滴灌核桃蛋白质含量、出仁率均较微喷高,其他指标无明显差异。

Effect of Drip Irrigation and Micro-sprinkler Irrigation on Water Consumption,Yields and Quality of Walnut

Field experiment was conducted to study the effect of drip irrigation and micro-sprinkler irrigation on Water Consumption, Yields and Quality of aged Walnut trees，which used the same irrigation schedule. The experiment results showed:①Under the condition of drip irrigation,the average of daily water consumption in blooming stage, fruit accelerated growth stage crust stage and maturity stage were 2.9mm, 3.97mm, 5.55mm and 3.39mm respectively.Water consumption of micro-sprinkler irrigation was different from drip irrigation,but in fruit accelerated growth stage and maturity stage the cumulation of water consumption of Both irrigations had no difference.　②The water use efficiency of drip irrigation was about 15% higher than micro-sprinkler irrigation. The yield of drip irrigation was higher than that of sprinkler irrigation.③Under the condition of two Irrigation methods, the content of protein of drip irrigation was higher than micro-sprinkler irrigation and as_same as the ratio of bared kernel. Other indexes made no difference.