不同改良剂对盐碱土植株生长发育的影响

Effects of different ameliorants on the growth and development of saline-alkali soil plants

通过研究磷石膏与有机肥配施对盐碱土植株生长发育的影响,为盐碱地改良提供科学依据。本文设置不同用量的磷石膏和有机肥混合比例,监测植株的生理生长以及对养分的吸收利用。结果表明:不同用量的磷石膏与有机肥配比施用可有效促进玉米的生理生长。其中PG3Y2处理的出苗率、株高和茎粗分别为0.93、38.67cm、1.08cm,分别较CK提高55%、41.5%、227.3%,且植株茎叶鲜重、干重CK增加7.89和2.10倍,同时显著提高了植株的养分吸收能力。

Studying the effects of combined application of phosphogypsum and organic fertilizers on the growth and development of saline-alkali soil plants can provide a scientific basis for the improvement of saline-alkali soil.In this paper,the mixing ratio of phosphogypsum and organic fertilizer with different dosages was set to monitor the physiological growth and nutrient absorption and utilization of plants.The results showed that different proportions of phosphogypsum and organic fertilizer could effectively promote the physiological growth of corn.Among them,the germination rate,plant height and stem thickness of PG3Y2treatment were 0.93,38.67cm,and 1.08cm respectively,which were 55%,41.5%,and 227.3%higher than CK,and the fresh weight of stems and leaves and dry weight of plants increased by 7.89and 2.10times.At the same time,the nutrient absorption capacity of the plant was significantly improved.