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1·I had to push the balloon over the end of the hose, and then tie a knot to keep the water in. It was a bit tricky.

我必须把气球套在水管尾端，然后用绳子系上，保证水流进去。这是一个小技巧。

2·After the beginning of the knot melon can not be short of water, and with the increase in the number of nodes, the corresponding increase in the amount of water.

开始结瓜后就不能缺水了，而且随着结瓜的增多，浇水量也相应增大。

3·Cleaning with a knot plush toys province water, washing powder, not only save water resources, and reduce the pollution of the environment.

用粗盐粒清洁毛绒玩具省水、省洗衣粉，不仅节约了水资源，而且减少了环境污染。

4·The disease indices of tomato root knot nematode was the highest while the soil water percentage was 8.98% and then decrease while the soil water percentage was higher than 26.27%.

土壤含水量为8.98％番茄根结线虫病病情最重，土壤含水量高于26.27％，番茄感染根结线虫病病情较轻。