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首页> 外文会议>Second International Conference on Sustainable Agriculture for Food, Energy and Industry Vol.2 >Amelioration Technique and Phosphorus Fertilizer in Relation to Some Soil Properties and Soybean Yield
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Amelioration Technique and Phosphorus Fertilizer in Relation to Some Soil Properties and Soybean Yield

机译：改良技术和磷肥与土壤性质及大豆产量的关系。

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A field experiment was carried out at Al-Azhar Agricultural Research Center, Assiut Governorate in summer season of year 2002. The study was conceived to investigate soybean growth responses and soil properties to some soil amendments and phosphorus fertilization. Results indicated that the studied amendments realized an improvement in bulk density, hydraulic conductivity (H.C.) and infiltration rate (I.R.). The soil bulk density decreased from an average value of 1.46 g/cm~3 in the control treatment to 1.26,1.25 and to 1.2 g/cm~3 in gypsum (G), farmyard manure (FYM) and G+FYM treatment, respectively. G+FYM treatment with phosphorus fertilizer of 45 kg/fd showed the lowest value of bulk density (1.15 g/cm~3). The average H.C. value was 0.060 ml day in the control plot and could be classified as slow while in G+FYM treatment, The average H.C. value was 0.1825 ml day and could be classified as moderately slow. The average value of I.R. was 5.15 cm /h in the control treatment and it increased to an average value of 9.45 cm/h in the G+FYM treatment. Application of the studied amendments realized a significant effect on the total soil nitrogen. Results showed a significant decrease in the value of total soil nitrogen and available K by increasing P level. Results also, indicate that the effect of P level on the availability of P and K in soil was significant. Data revealed that exchangeable Ca, Mg and K increased by the application of soil amendments but exchangeable Na was significantly decreased. It decreased from an average value of 17.07 in the control treatment to an average of 6.46, 9.54 and 6.95 in G, FYM and G+FYM treatment, respectively. Application of (G+FYM) gave the greatest amount of grain and straw yield.
机译：2002年夏季，在Assiut省Al-Azhar农业研究中心进行了田间试验。该研究旨在研究大豆对某些土壤改良剂和磷肥的生长响应和土壤特性。结果表明，所研究的修正物实现了堆积密度，水力传导率（H.C.）和渗透率（I.R.）的改善。土壤容重从对照处理的平均值1.46 g / cm〜3降低至石膏（G），农家肥（FYM）和G + FYM处理的1.26、1.25和1.2 g / cm〜3 。 G + FYM磷肥处理量为45 kg / fd时，堆密度最低（1.15 g / cm〜3）。平均H.C.对照区的日平均值为0.060 ml，在G + FYM处理中可归为慢，平均H.C。值是每天0.1825毫升，可以分类为中度缓慢。 I.R.的平均值在对照处理中为5.15cm / h，而在G + FYM处理中增加到9.45cm / h的平均值。研究修正案的应用对土壤总氮有显着影响。结果表明，通过增加P水平，土壤总氮和有效K值显着降低。结果还表明，磷水平对土壤中磷和钾有效性的影响是显着的。数据显示，通过施用土壤改良剂，可交换的Ca，Mg和K增加，但可交换的Na明显减少。它从对照治疗的平均值17.07降至G，FYM和G + FYM治疗的平均值6.46、9.54和6.95。 （G + FYM）的施用使谷物和稻草的产量最高。

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