Nano chitosan-NPK fertilizer enhances the growth and productivity of wheat plants grown in sandy soil
Nano chitosan-NPK fertilizer enhances the growth and productivity of wheat plants grown in sandy soil
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DOI：
10.5424/sjar/2016141-8205
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发表时间：
2016-03-01
影响因子：
0.9
通讯作者：
Omer, Aya M.
中科院分区：
文献类型：
--
作者：
Abdel-Aziz, Heba M. M.;Hasaneen, Mohammed N. A.;Omer, Aya M.
纳米肥料已成为当今农业研究的先驱方法。本文研究了壳聚糖纳米颗粒对小麦叶片氮、磷、钾的吸收传递。壳聚糖-NPK纳米颗粒很容易施加到叶片表面，并通过气体吸收进入气孔，避免与土壤系统的直接相互作用。利用透射电镜研究了纳米粒子在小麦植株体内的吸收和转运。结果表明，纳米粒子通过韧皮部组织被吸收和运输。用纳米壳聚糖-NPK肥料处理生长在桑迪土壤上的小麦植株，与用正常未施肥和正常施肥的NPK处理的小麦植株的对照产量变量相比，诱导了所确定的小麦产量变量的收获指数、作物指数和动员指数的显著增加。纳米施肥的小麦植株的生命周期比正常施肥的小麦植株短23.5%（从播种日起130天，而产量生产为170天）。因此，通过应用纳米肥料加速植物生长和生产力可以在农业实践中开辟新的前景。然而，植物对纳米肥料的反应因植物种类、生长阶段和纳米材料的性质而异。
Nanofertilizers have become a pioneer approach in agriculture research nowadays. In this paper we investigate the delivery of chitosan nanoparticles loaded with nitrogen, phosphorus and potassium (NPK) for wheat plants by foliar uptake. Chiotsan-NPK nanoparticles were easily applied to leaf surfaces and entered the stomata via gas uptake, avoiding direct interaction with soil systems. The uptake and translocation of nanoparticles inside wheat plants was investigated by transmission electron microscopy. The results revealed that nano particles were taken up and transported through phloem tissues. Treatment of wheat plants grown on sandy soil with nano chitosan-NPK fertilizer induced significant increases in harvest index, crop index and mobilization index of the determined wheat yield variables, as compared with control yield variables of wheat plants treated with normal non-fertilized and normal fertilized NPK. The life cycle of the nano -fertilized wheat plants was shorter than normal -fertilized wheat plants with the ratio of 23.5% (130 days compared with 170 days for yield production from date of sowing). Thus, accelerating plant growth and productivity by application of nanofertilizers can open new perspectives in agricultural practice. However, the response of plants to nanofertilizers varies with the type of plant species, their growth stages and nature of nanomaterials.