测土配方施肥技术在樱桃生产中的应用-农业资源利用专业论文.docxVIP

贵州大学 贵州大学 2010 农业推广硕士 PAGE PAGE 2 10-8-7）+喷肥（0.5%磷酸二氢钾和 0.5%的尿素），其坐果率、单果重、产量最 优，其坐果率最高为 92%，其单果重最重为 2.765g、产量最重为 16.033kg/株， 明显高于其它施肥处理。 关键词：测土配方 技术 樱桃 生产 The application of soil testing and formulated fertilization on Cherry Production Abstract Based on the requirement of fruit development in Guiyang city, the research of soil testing and formulated fertilization on cherry orchard was conducted through field investigation, soil sample analysis, formulations and field trials. the conclusions were followed. Through the investigation of soil nutrients in cherry orchard in Wudang District, the soil fertility was classified as over average level, according to the soil nutrient grading index from the second national soil survey. The variation coefficient of available phosphorus is the most, compared with that of soil organic matter, total nitrogen, available nitrogen and available potassium; 10 pairs data of soil organic matter and soil total nitrogen were analyzed through linear regression, R= 0.7317**. The soil organic matter, nitrogen, phosphorus and potassium content were all decreased with the increased distance to the trunk. Cherry trees grew better in higher level fertility soil than that in lower higher level fertility soil. The tree height and crown diameter of trees in high level fertility orchard were 32.44cm, 221.6cm, respectively, and 8.76cm, 20cm , respectively longer than that in low level fertility orchard with significant differences. The content of potassium in cherry leaves was positively correlated with soil organic(R= 0.507**), the contents of calcium, magnesium, iron and manganese in cherry leaves were positively correlated with the available phosphorus content in cherry orchard soil (rCa = 0.788 **, r Mg = 0.650 *, r Fe = 0.763 *, r Mn = 0.643 *),the contents of nitrogen and potassium in the cherry leaves were positively correlated with the available potassium content in cherry orchard soil(r N = 0.864 **, r * P = 0.698) The changes