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我场位于由长江上游冲积下来的泥沙淤积而成的江心小岛上.地势平坦,土质肥沃,耕作层深厚,排水性能良好,有机质在1%左右,含氮量0.03%,速效磷3—5ppm,速效钾丰富,超过100ppm,pH7.5左右,地下水位在0.5—1米之间,因潮水顶托而时高时低.据县气象站资料,年平均气温在14.7℃左右,极端最高气温38.9℃,极端最低气温-12℃,年降水量1059.7毫米,年平均日照一般为2052.9小时.环境条件适于竹子生长.浙江淡竹在浙江安吉有大面积分布,用途广泛,既对整秆做农具柄,又可劈篾做编织品,在浙江还选用此竹的较长节间做杭州绸伞的伞骨,供出口之用.根据竹材物理力学试验测定,优于我省各地普遍栽植的江苏淡竹(Phyllostachys glauca Meclue),前者的公定容积重0.6899克/立方厘米,顺纹抗压709.7千克/立方厘米,顺纹抗拉1542.2千克/立方厘米,冲击强度2.23千克-米/立方厘米,分别较后者的0.508克/立方厘米,492千克/立方厘米,1164千克/立方厘米和1.73千克-米/立方厘米为强,生长发展迅速,未
My field is located in the islet of Jiangxin River, which is formed by the siltation of the upper reaches of the Yangtze River .It has the features of flat terrain, fertile soil, deep tillage and good drainage performance with about 1% organic matter, nitrogen content 0.03%, available phosphorus 3 -5ppm, available potassium is rich, more than 100ppm, about pH7.5, groundwater level between 0.5-1 meters, due to the tide of water top and sometimes high and low.According to county weather station data, the annual average temperature at about 14.7 ℃, extreme The highest temperature of 38.9 ℃, extreme minimum temperature of -12 ℃, annual precipitation of 1059.7 mm, the average annual sunshine is generally 2052.9 hours. Environmental conditions suitable for bamboo growth. Zhejiang light bamboo Anji in Zhejiang have a large area of distribution, a wide range of uses, Made of agricultural tools handle, but also can be split 篾 do braid, Zhejiang also choose the longer internode of Hangzhou umbrella umbrella umbrella for export purposes. According to bamboo physical and mechanical testing, better than the general planting in our province Of the Phyllostachys glauca Meclue, the former having a weight of 0.6899 g / cm 3, a compressive strength of 709.7 kg / cm 3, a tensile strength of 1542.2 kg / cm 2, an impact strength of 2.23 kg-m / cm 3, Respectively, the latter than the 0.508 grams / cubic centimeter, 4 92 kg / cm, 1164 kg / cm and 1.73 kg - m / cm 3, the growth is rapid, and no