利用有机肥料和生物肥料提高沙质石灰性土壤中大麦的氮肥效率

‌Marwa Elsayed, S. Dahdouh, M.A. Poraas, M. Elsawy
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摘要

:进行了一项盆栽实验,研究用有机肥和生物肥部分或全部替代矿物氮肥的可能性,目的是提高在努巴里亚农业研究站采集的砂质钙质土壤上种植的大麦的氮肥效率。矿物氮肥的添加量分别为 30、60、90 和 120 毫克氮/千克土-1。磷肥和钾肥的建议添加量分别为 15 毫克磷和 30 毫克钾(每千克土壤-1)。有机肥料来自 "堆肥、鸡粪和鸽子粪",根据其氮含量以 30 毫克/千克土壤-1 的比例添加。生物肥料是通过添加 5g pot -1 serialin 或/和 5g pot -1 phosphorene 实现的;与土壤充分混合。根据观察到的数据,在土壤中施用 "堆肥+系列素 "和矿物氮(添加量为 "90 毫克氮/千克土-1")时,干物质产量最高。土壤中施用 "鸡粪 + 系列素 "和矿物氮(添加量为 60 毫克氮/千克土壤-1)时,氮的吸收率最高。用 "鸡粪+磷 "和矿物氮(添加量为 60 毫克氮/千克土壤-1)处理土壤时,磷的吸收率最高。用 "鸡粪+磷 "和矿物质氮处理土壤时,钾的吸收量最高,为 90 毫克氮/千克土 -1 。使用 "鸡粪 + 连环素 "和 60 毫克牛粪/千克土壤-1 的矿物质氮混合处理土壤时,秸秆和谷物产量以及蛋白质含量最高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
IMPROVING N-FERTILIZATION EFFICIENCY FOR BARLEY PLANT GROWN ON SANDY CALCAREOUS SOIL BY USING ORGANIC AND BIOFERTILIZERS
: A pot experiment was carried out for investigating the possibility of partial or entire replacement of mineral nitrogen fertilizers with organic and biofertilizers, aiming to improve the efficiency of nitrogen fertilization for barley plant grown on sandy calcareous soil collected from Agriculture Research Station in Nubariya. Mineral nitrogen fertilizer was added at the rates 30, 60, 90 and 120 mg N kg soil -1 . Phosphorus and potassium were added at the recommended rates of 15 mg P and 30 mg K kg soil -1 , respectively. Organic fertilizers were added from different sources "compost, chicken manure and pigeon dung" at a rate of 30 mg kg N soil -1 based on their nitrogen content. Biofertilization was achieved through the addition of 5g pot -1 serialin or/and 5g pot -1 phosphorene; mixed thoroughly with soil. Upon the observed data, the highest dry matter yield was obtained when "compost + serialin" were applied to the soil in combination with mineral-N at addition level of "90 mg N kg soil -1 ". The highest nitrogen uptake was obtained when the soil was treated with "chicken manure + serialin" combined with mineral-N at addition level of 60 mg N kg soil -1 . The highest phosphorus uptake was obtained when soil treated with "chicken manure + phosphorine" combined with mineral-N at level of 60 mg N kg soil -1 . The highest potassium uptake was obtained when soil was treated with "chicken manure + serialin" combined with mineral-N at level of 90 mg N kg soil -1 . The highest yield of straw and grains as well as protein content were obtained when soil was treated with "chicken manure + serialin" combined with mineral-N at level of 60 mg N kg soil -1 .
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