The WUE of film mulched wheat is increased with the amout o.

The experiment on sowing date,varieties,planting density and fertilizer application methods on film mulched wheat (FMW) shows:The variety fit for FMW in dryland should have the following major characters,such as the strong cold and drought tolerance,the high tillering ability,big spike and grain,winterness or semi winterness and dwarf or semi dwarf stem.

The currently used sowing machines for film mulched wheat production under the ridge furrow farming technique can only plant 2 rows of wheat in each furrow,but the filmmulched wheat production under the ridge furrow farming technique requires that the sowing machines be transformed to plant 3 rows in each furrow.

A mulching practice demonstration of 1?420 hectare in 2000 concluded that the grainyield under the mulching was 25 6%～52 3% higher over that of open air wheat with an yield increase of 1012～1187kg per hectare,the cost increase periathectare was about 300 RMB,included the c.

Limited supplementary irrigation with catchment of rainfall was made for spring wheat mulched with plastic film in dry mountainous areas of South Ningxia.

Rainwater collection and water saving irrgation of film mulched winter wheat in dry plain has significant effect on yield increase and water use .

Effect of fertilization on yield increasing of winter wheat planted on sides of film in furrow lines in dryland areas in Tianshui;