Determinación de la curva de absorción de nutrientes n p k ca mg en cuatro etapas fenológicas del cultivo de fréjol phaseolus vulgaris l.
To optimize the nutritional crop management, which is one of the limiting factors in the development and performance, are the studios of absorption of nutrients that are used to count and record the nutrient intake of the plant in relation to the phenological stages depending on expected yields. The...
-д хадгалсан:
| Үндсэн зохиолч: | |
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| Формат: | bachelorThesis |
| Хэл сонгох: | spa |
| Хэвлэсэн: |
2015
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| Нөхцлүүд: | |
| Онлайн хандалт: | http://repositorio.utmachala.edu.ec/handle/48000/3006 |
| Шошгууд: |
Шошго нэмэх
Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!
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Шошго нэмэх | Тойм: | To optimize the nutritional crop management, which is one of the limiting factors in the development and performance, are the studios of absorption of nutrients that are used to count and record the nutrient intake of the plant in relation to the phenological stages depending on expected yields. The main objective of the study was to determine the absorption curves of nutrients (N, P, K, Ca, Mg) for the cultivation of beans (Phaseolus vulgaris L. ), in four phenological stages of cultivation, under controlled greenhouse conditions. The research found the accumulation of dry matter (DM) generated in the field by the crop, in the Laboratory of soils of the Unidad Académica de Ciencias Agropecuarias de la Universidad Técnica de Machala (UTMach) and the amount of absorption of nutrients (N, P, K, Ca, Mg), by atomic absorption spectrophotometry in the Laboratory of soil from Instituto Nacional de Investigaciones Agropecuarias (INIAP-E.E. Santa Catalina) for each type of tissue (root, stem, leaf, flower, pod, tender and grain dry). The sampling unit comprised of 10 plants distributed in three replicates for each of the four phases phenological, defined as follows: 1. From germination until third trifoliate leaf; 2. Flowering; 3. Filling of pods and 4. Dry grain. The results obtained indicate that the production of DM is higher for the aerial part of the plant in its two initial stages and encountering a high partition of biomass to the grain in the final stage. The order of absorption of the nutrients in the crop is defined in the following order N>K>Ca>Mg>P, being the sheet component that greater nutrient content absorbs, followed by the grain in the productive period and leaving the smaller quantities in the root system. |
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