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在日本,果实颜色是决定果价的重要因素。我们在采收场,选果场和市场所见,凡是有色的果实,不论是果顶还是果底,都全部着色。颜色鲜艳,非常漂亮。日本雨水多,全年光照时间仅2,000小时左右。苹果的颜色为什么能艳丽悦目呢?主要原因是,日本果农对施无机肥料很讲究。为了提高果品质量,他们实行控氮的办法,施氮、磷、钾的比例基本上是3:1:2,即每公顷施氮肥150公斤,磷肥50公斤,钾肥100公斤(均为有效成份)。且多用复合肥料。在整形修剪和疏果等方面都给果实着色创造条件。具体措施还有以下几点: (1)套袋。大部分果园都实行果实套袋。有套一层的,也
In Japan, the color of fruit is an important factor that determines fruit prices. We are in the collection field, the election of the fruit market and the market to see, any colored fruit, whether it is the top of the fruit or fruit, all coloring. Bright colors, very beautiful. There are many rainy days in Japan, and the annual light time is only about 2,000 hours. Why is the color of the apple beautiful and pleasing? The main reason is that Japanese farmers pay attention to the application of inorganic fertilizers. In order to improve fruit quality, they implemented nitrogen control measures. The ratio of nitrogen, phosphorus and potassium was basically 3: 1: 2, that is, 150 kg of nitrogen fertilizer per hectare, 50 kg of phosphate fertilizer and 100 kg of potash fertilizer (both are active ingredients) . And more compound fertilizer. In the plastic trim and thinning and other aspects of fruit coloring to create the conditions. Specific measures are the following points: (1) bagging. Most fruit orchards are bagged. There are sets of layers, too