发酵肥料对沙地水分与植物生长的影响

向沙地加入由牛粪分别与棉秆、玉米秆和麦糠发酵而成的肥料,然后种植梭梭与白梭梭,研究发酵肥料对土壤水分和植物生长的影响。结果表明:仅施加1.6%的发酵肥料,不能明显提高土壤含水率;发酵肥料提高了植物的存活率,梭梭的存活率平均比对照高28.1%,白梭梭平均比对照高3.6%;发酵肥料能提高梭梭、白梭梭株高生长量,梭梭、白梭梭肥料处理的累积株高生长量平均比对照高20.3 cm、18.8 cm,两种植物的月生长量与对照差异达显著或极显著水平(P<0.05,P<0.01);发酵肥料能够明显提高两种植物的单枝生长量,肥料处理的月生长量与对照的差异达显著或极显著水平(P<0.05,P<0.01),两种植物肥料处理的累积单枝生长量平均比对照高30.4 cm、25.0 cm。

Effects of fermented manure on sandy land soil moisture and growth of plants

To research the effect of fermented manure on soil moisture and plant growth,we applied fermented manure which is made of cow waste with corn straw,cotton straw,and wheat husk separately in the sandy land,then planted the Haloxylon ammodendr and Haloxylon persicum.Fermented manure accounting for 1.6% of the soil weight was not improve the soil moisture significantly.The survival rate of the plants was enhanced by fermented manure.The gap of average survival rate between fertilized Haloxylon ammodendr and control reached 28.1% and the average survival rate of fertilized Haloxylon persicum was 3.6% higher than that of control.Fermented manure increased the growth of plant height.The average accumulated growth of the fertilized Haloxylon ammodendr was 20.3cm higher than the control,and the gap between Haloxylon persicum and control was 18.8cm.There was significant difference between the treatment and control on monthly increment(P<0.05,P<0.01).The growth of branch was greatly lengthened by fertilizing the plants with fermented manure.The difference of monthly branch increment between the treatment and control was significant(P<0.05,P<0.01).By the middle of September,the average accumulated branch growthes of the two fertilized plants were 30.4cm and 25.0cm longer than that of control respectively.