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- Title
COMPARATIVE STUDY BETWEEN AEROBIC AND NON-AEROBIC DECOMPOSITION FOR DIFFERENT ORGANIC FERTILIZERS AND THE ROLE OF ENRICHING ORGANIC FERTILIZERS WITH MINERAL NUTRIENTS IN THE GROWTH AND YIELD OF POTATO.
- Authors
Hadi, Ahmed Abdulhasan; Abdulrasool, Kahtan Jamal
- Abstract
The current research has been carried out in one of Agricultural Engineering Sciences College's fields/University of Baghdad, Al-Jadiriyah to make comparison among results of aerobic and non- aerobic decomposition for different organic fertilizers and its effect upon the growth and yield of potato. It has been implemented two operations of aerobic and non-aerobic decomposition for three types of animalswastes which are cows, sheep and poultry approximately for 80 days. After that, it has mixed products of aerobic and non-aerobic decomposition individually of three animals wastes to get two organic fertilizers. Water extracts ofaerobic and non-aerobic decomposition products have been obtained singly for spraying on the plants. It has enriched the organic fertilizers resulted from aerobic and non-aerobic decomposition with mineral fertilizers before being added to the soil. The field experiment has been carried out in silty loam by cultivating the potato. Cultivar Sevra / Class B. The treatments of the research include 10 treatments that being distributed according to the RCBD, with three replicates, thus the number of experimental units becomes 30 with area 4m2 for each unit. The crop has been harvested in the end of the season and measured growth and yield criteria. The results have indicated as follows: Getting reduction in values of electrical conductivity for the studied organic fertilizers in the aerobic decomposition, while pH was somewhat similar in their behaviour in both ways. It indicated that the loss in the content of fertilizers of nitrogen and potassium in aerobic decomposition was more than non-aerobic decomposition, while the loss in phosphorus was little in the aerobic decomposition in comparison with the non-aerobic decomposition. Whereas C/N for the non-aerobic decomposition was less in comparison with the aerobic decomposition. The treatment of organic decomposition enrichment with minerals have not been a significant differences than those of independent treatments in terms of the total yield. The treatment T8 was given higher total yield 42.5 Mg ha-1 with significant difference from the treatment (T1, T2, T3, T4) and higher biology yield 2.83 Mg ha-1 that being equal to the treatment T7 with significant difference from the treatment (T2, T1) and with higher dry weight of tubers 8.53 Mg ha-1 with a significant difference from the treatments (T5, T3, T2, T1).
- Subjects
ORGANIC fertilizers; CHEMICAL decomposition; POTATO yields; CROP growth; ANIMAL waste
- Publication
Plant Archives (09725210), 2019, Vol 19, Issue 2, p4340
- ISSN
0972-5210
- Publication type
Article