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首页> 外文会议>Consultants Meeting on Management Practices for Improving Sustainable Crop Production in Tropical Acid Soils >EVALUATING THE RESPONSE OF SELECTED COMMON BEAN GENOTYPES TO THE APPLICATION OF PHOSPHATE ROCK PRODUCTS IN ACID SOILS OF CUBA
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EVALUATING THE RESPONSE OF SELECTED COMMON BEAN GENOTYPES TO THE APPLICATION OF PHOSPHATE ROCK PRODUCTS IN ACID SOILS OF CUBA

机译：评估所选常见豆类基因型对古巴酸性土壤磷酸盐岩产物应用的响应

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Glasshouse experiments were carried out to evaluate the response of common bean {Phaseolus vulgaris) genotypes to the application of phosphorus (P) sources varying in solubility and to compare the agronomic effectiveness of local phosphate rock (PR) products in two acid soils (Acrisol and Rhodic Ferralsol) of Cuba. Recommended common bean genotypes were evaluated, i.e. BAT 477, DOR 364, DOR 390 and Censa were grown in the Acrisol and BAT 477, DOR 364, BAT 58 and CC 25-9(N) in the Rhodic Ferralsol. The ~(32)P isotopic dilution method was utilised to measure the P uptake from the following P sources: Trinidad de Guedes PR, a partially acidulated PR product (FPA 50) and water-soluble P fertilizers, i.e. single (SSP) or triple super phosphate (TSP), which were used as reference of comparison. A control (without P application) treatment was also included. Genotypic differences in dry matter production, total P uptake and in the plant P derived from the applied P sources were found, resulting in significant genotypic differences on the agronomic effectiveness of P sources studied. However, this effect varied with soil type. The direct application of Trinidad de Guedes PR was only efficient, i.e. % Pdff was higher than 30%, for DOR 364 in the Acrisol. The FPA 50 was efficient for all common bean genotypes in both soils. In the Acrisol on the average for the genotypes studied from 1,0 to 2,9 kg of P as FPA 50 were equivalent to 1 kg of P as SSP. In Rhodic Ferralsol, from 1,4 to 2,0 kg of P as FPA 50 were equivalent to 1 kg of P as TSP. The results obtained are useful for breeding programs aiming at obtaining common bean genotypes with high P use efficiency for areas having P deficient soils and where locally available cheap P sources of low (PR) or medium solubility (FPA 50) can be applied. Further field validation studies should be carried out in areas, which are representative of studied acid soils.
机译：进行了玻璃室实验，以评估常见的豆类{phoudolus vulgaris）基因型对溶解度不同的磷（p）源的应用，并比较局部磷酸盐岩（Pr）产物在两种酸性土壤中的农艺效果（丙酰均罗兰元博尔斯）古巴。推荐的常见豆类基因型评估，即BAT 477，DOR 364，DOR 390和CENSA在亚丙氏菌和BAT 477，DOR 364，BAT 58和CC 25-9（N）中生长在亚丙酰··苯甲酸杆菌中。使用〜（32）P同位素稀释方法从以下P来源测量p吸收：Trinidad de Guedes Pr，部分酸化的PR产品（FPA 50）和水溶性P肥料，即单（SSP）或三倍超级磷酸盐（TSP），用作比较的参考。还包括对照（没有P应用）处理。发现干物质生产中的基因型差异，总P吸收和植物p衍生自应用的P源，导致对所研究的P源的农艺效果显着的基因型差异。然而，这种效果随土壤类型而变化。 Trinidad de Guedes Pr的直接应用仅效率，即％PDFF高于酰亚丙烯醇的DOR 364的PDFF高于30％。 FPA 50对于两种土壤中的所有常见豆类基因型都有效。在酰基上，从1,0至2,9千克P所研究的基因型的平均值，如FPA 50相当于SSP的1千克P.在rhodic丁醇中，从1,4-2,0kg作为FPA 50相当于1千克P作为TSP。所获得的结果可用于培育旨在获得具有高p使用效率的常见Bean基因型的培育方案，用于具有P缺陷的土壤的区域，并且可以应用局部可用的低（PR）或培养基溶解度（FPA 50）的地方。应在代表研究酸性土壤的区域进行进一步的现场验证研究。

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