Effects of Different Planting Patterns on Population Quantity, Grain Yield and Water Use Efficiency of Wheat in the Central Part of Shandong Province
In recent years,with the increase of wheat yield,the phenomenon of water and fertilizer waste exists in field management process.Proper scheme of wheat planting patter can gain high resource use efficiency and high yield.To explore the effects of different wheat planting patterns in huang-huai wheat production area,a field experiment including 5 different fertilization and irrigation patterns was carried out in Tai'an county of Shandong province in 2010-2011 and 2011-2012 growth seasons.Yield characters,harvesting index and water use efficiency of winter wheat were investigated and compared.The results showed that the water saving model 1 (the amount of nitrogen for basal/topdressing was 210 kg · hm-2 and the irrigation amount was 750 m3 · hm-2 water at sowing time,wintering period and jointing stage,respectively) was a fairly good high yield planting pattern,and the harvest index and water use efficiency in the two consecutive years were 1.45 ％ and 3.05 ％ higher than that of farmers' conventional model.In short,the water saving model 1 was the most suitable and efficient cultivation model in the ecological environment of central part of Shandong province.It might be of great extension value in the future for its advantages such as water saving,fertilizer saving,labor saving and high yielding.
WheatPlanting patternPopulation quantityGrain yieldWater use efficiency
NETL
NSTL
万方数据
维普
