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- Spraying Ca 2+ ,K +,SO 2- 4,H 2PO - 4,NO - 3and Urea on apple tree leaves before leaf abscission, the content of amino acid decreases in thick roots and the fertilizers except SO 2- 4 make amino acid transport from long branches to roots system. 本文于落叶前向苹果树根外追施矿质肥料，落叶后采样测定了氨基酸、可溶性糖和P、K、B、Ca的含量。 结果表明，喷含Ca2＋、K＋、SO2－4、H2PO－4、NO－3及尿素等肥料均使粗根中氨基酸含量下降，除SO2－4外其它肥料能促进氨基酸由长枝下运至根系；
- There is a dwarf apple tree in our garden. 在我们的花园里有一棵矮苹果树。
- The apple tree is seldom fruitful. 这棵苹果树很少结果。
- She read a poem entitled The Apple Tree'. 她读了一首题为《苹果树》的诗。
- He grafted the branch onto the apple tree. 他将这根树枝嫁接到了苹果树上。
- The Effects of Water Deficits on Photosynthetic Efficiency of Young Apple Tree Leaves on a Sunny Day 水分亏缺对苹果幼树日光合效率的影响
- I want the boys to hack down that apple tree, it's unsafe. 我要男孩子们把那棵老苹果树砍倒，那棵树不安全。
- The bad boys rifled the apple tree. 那些坏孩子把苹果树劫摘一空。
- They tamped down the earth around the apple tree. 他们把苹果树周围的泥土夯实。
- The tree leaves quiver in the slightest breeze. 树叶儿在丝丝微风中颤动。
- These apple trees yield plenty of fruit this year. 这些苹果树今年结了许多苹果。
- Autumn has come. Tree leaves are turning yellow. 秋天到了,树叶变黄了。
- Our apple trees will bear well this year. 今年我们的苹果树会结许多果实。
- In autumn, tree leaves begin to turn yellow. 秋天树叶开始变黄。
- These apple trees have always fruited well. 这些苹果树总是结很多苹果。
- The apple trees are fruiting early this year. 今年苹果树很早结果。
- Tent caterpillars feed on cherry tree leaves. 帐篷毛虫食用樱桃树叶。
- The apple trees were blighted by frost. 苹果树因严寒而枯萎。
- Daijiazhulou chic in the shade tree leaves. 别致的傣家竹楼掩映在绿树丛中。
- He chopped down an old apple tree. 他砍倒了一棵老苹果树。
