生物吸水胶应用于育苗造林研究

在人工控制条件下,研究了生物吸水胶对土壤含水量的影响,胶土水分交换动态,吸水胶×肥料对土壤水分和苗木生长的影响,并进行了多地点大田育苗,造林和农作物试验。基本搞清了吸水胶吸水保水性能的特点。吸水胶用于育苗,造林和农作物的技术要点是:(1)育苗以每个容器(1株苗)0.3～0.7克为宜。苗木生长量增加10.18％～12.65％。(2)用于造林应当在整地后,先施吸水胶,待下雨后栽植。用量1～4克/株。施肥作业应先施吸水胶,待下过雨,胶吸足水之后进行。

Application of biocolloid material in seedling technique

Under the controled condition,the effect of biocolloid material on soil moisturet exchanging dynamic between soil and faiocolloid. and mutual effect of biocolloid material and fertilizer on soil moisture and seedling growth were studied. The field seedling,afforestation and food crops in various sites also were done .The above-mentioned experimental results indicated that the soil moisture may be increase if applied a little biocolloid in it, biocolloid absorbed enough water, the moisture can be take in by dry soil due to the capilarity. The technique key poits used biocolloid to seedling, afforestation and food crops are as follows:1,the increment of plant can be reach 10.1%-12.6% with to 0.7 g biocolloid per container (a single plant) for seed1ing; 2, 1to 4 g per plant for afforestation, transplanting after it rains.