无公害物理性高分子膜在农业上的生态效应研究

高分子膜类物质（高级脂肪醇或高级脂膜肪酸）喷在植物体表面和地面后，能形成透明的膜层。国际上曾作为蒸腾抑制剂或蒸发抑制剂使用，可以提高苗木移栽的成活率和增强抗旱耐寒能力，有利于植物生长和发育及增产作用。在多种作物上研究防治病害，随之又观察到还能防治小体昆虫（蓟马、蚜虫、螨类等害虫）。我省在棉花上应用于地膜棉早播增产10%~13%。在小麦扬花后喷洒，千粒重增加2g，增产10.15%以上 。

The ecological efficiency effect higher-fatty aecohoe-fatty a cid on agrcuetur e production

when spraing Higher-fatty aecohoc-fatty acid on plant surtace ar ground ,it coued form a filrm layer no eye seen.In the internationae ,it have been on as restrain agent of evaporation and steeming which can raising the suruiuae rate of tran-aplat seedings ,increasing drought-reought-resistance and feeze-resis-tance,and acso the plant growing and output .We have found that applying this in many crops can xontroe plant desease and insect pests ,We found that can provide frips ,aphid and red spider etc .uhen spraing it on cotton may increase yield 10%~13%and using it after wheat flowering stage that can raise the 1000-kernel wt.2g and outpue ouer 10%.