نوع مقاله : مقاله کامل علمی پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه علوم خاک، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران.
2 استاد، گروه علوم خاک، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران
3 دانشیار، گروه علوم خاک، دانشگاه علوم کشاورزی و منابع طبیعی ساری، ساری، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Abstract
Background and Objectives: Researchers are trying to reduce the harmful effects of chemical fertilizers and applying as possible in the soil to meet the nutritional needs of plants. The use of mineral amendments such as zeolite, is seen as a potential step towards achieving sustainable agriculture. The objective of this research was conducted with the aim of determine the impact of zeolite and enriched zeolite on rapeseed yield, component yields and concentration of some nutrients in soil and rapeseed seed in two soils with different textures.
Materials and Methods: This experiment was conducted as a split plot in pots conditions in three replicates in the research greenhouse of Sari Agricultural Sciences and Natural Resources University in 2022. In this experiment, the main factors include two types of soils (silty clay loam and sandy loam) and the secondary factors in twelve levels include the control (without zeolite and ammonium sulphate fertilizer), 108 and 153 mg kg-1 ammonium sulphate fertilizer, 2, 4 and 6 gr zeolite with 108 mg kg-1 ammonium sulphate, 2, 4 and 6 gr zeolite with 153 mg kg-1 ammonium sulphate and 2, 4 and 6 gr enriched zeolite were considered. The amount of ammonium sulfate fertilizer was determined according to the soil test and zeolite was enriched by ion saturation method. Data analysis was done in the Statistic software and the mean comparisons were made by LSD test.
Results: The results showed that the effects of the amendment treatments were significant on all studied traits except soil and seed phosphorus. the highest amount of grain yield (7.68 gr) was observed in silty clay loam soil and 6 gr zeolite with 153 mg kg-1 ammonium sulphate (T8). the highest percentage of oil seed (36.37%) was observed in blank and the lowest percentage of oil seed (34.51%) was abserved in 153 mg kg-1 ammonium sulphate (T2). The thousand seed weight (4.06 gr) and grain nitrogen (4.68 %) were significantly affected by 153 mg kg-1 ammonium sulphate (T2). The results also revealed that 6 gr zeolite with 153 mg. kg ammonium sulphate (T8) had the most affected on nitrogen and potassium in soil.
Conclusion: According to the results of the present study, the highest amount of grain yield was a result of interaction of silty clay loam texture and 6 gr zeolite with 153 mg kg-1 ammonium sulphate (T8). all studied traits in soil with silty clay loam texture are more than soil with sandy loam texture. The best results were obtained in 6 gr zeolite with 153 mg kg-1 ammonium sulphate (T8) and among the enriched zeolite treatments, application of 4 gr enriched zeolite with ammonium was the most effective treatment. It can be concluded that the combined use of zeolite and ammonium sulphate can be a suitable solution for improving rapeseed yield.
Keyword: ammonium sulphate, enriched zeolite, grain yield, nitrogen, rapeseed.
کلیدواژهها [English]