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首页> 外文期刊>Folia Horticulturae >The effect of late spraying with calcium nitrate on mineral contents in 'Elise' apples.
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The effect of late spraying with calcium nitrate on mineral contents in 'Elise' apples.

机译：后期喷施硝酸钙对'Elise'苹果中矿物质含量的影响。

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摘要

The investigations were carried out in 2004-05 in the experimental orchard at Garlica Murowana in the Krakow area, Poland. The effect of late spraying with 0.8% Ca(NO3)2 on calcium content as well as nutrient mutual relations between mineral constituents in 'Elise' fruit of 5 year old apple tree were studied. Trees were sprayed 3 times at 10-day intervals before fruit harvest. Fruit mineral composition was estimated 10 days after each treatment and after harvest. In general, foliar spray with calcium nitrate increased Ca concentration in fruits determined both after treatments and after harvest however this effect was modified by weather conditions in particular experimental years. Sprays with calcium nitrate significantly decreased N/Ca and K/Ca ratio in fruits analyzed after treatments as well as freshly harvested fruits, however only in 2005.
机译：调查于2004-05年在波兰克拉科夫地区的Garlica Murowana的实验果园中进行。研究了0.8％Ca（NO3）2后期喷施对5岁苹果树“ Elise”果实中钙含量以及矿物质成分之间养分相互关系的影响。在收获水果之前，每隔10天对树木喷洒3次。在每次处理后和收获后10天估计水果矿物质的组成。通常，用硝酸钙进行叶面喷洒可以增加果实在处理后和收获后的钙含量，但这种效果在特定的实验年份因天气条件而改变。硝酸钙喷雾剂显着降低了处理后分析的水果以及新鲜收获的水果中的N / Ca和K / Ca比值，但仅在2005年。

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