By using correlation analysis method, regression analysis method and time sequence method, we combine time and space, to establish grain geld spatio-temporal regression prediction model of Henan Province and ail prefecture-level cities. At first, we use the grain geld in prefecture-level cities...

To develop a water-saving planting pattern in the North China Plain, in the 2010–2011 and 2011–2012 winter wheat growing seasons, 2 types of planting patterns (wide-precision planting and conventional-cultivation planting) and 3 different irrigation treatments (60.0-mm irrigation at both...

A study was carried out in the Teaching and Research Farm of Delta State University, Asaba Campus from August to December in 2005 and repeated between March and July, 2006 to evaluate the response of maize (Zea mays) to liquid organic fertilizer. The study was conducted using a split plot fitted...

The experiment was carried out at the Student Farm of CCS HAU, Hisar for two consecutive kharif seasons of 2011 and 2012.  The field was laid out in a split plot design following the block randomization system with three replications.  Four varieties (HC 541, HC 308, HC 171 and HJ 513) and...

To improve grain yields of winter wheat and water-use efficiency in the water-shortage region of the North China Plain (NCP), field experiments involving three irrigation levels and two types of winter-wheat cultivars (Shijiazhuang 8 and Xifeng 20, with moderate and strongly drought tolerance,...

Effective use of water (EUW) was evaluated along with grain yield in the same environment over different years and locations. The root system sizes of sets of winter wheat varieties (20, 20, 20 and 18 varieties in 2007, 2008, 2009 and 2010, respectively) were evaluated by measuring their...

The effects of water, N and weed interactions on crop performance have not been adequately addressed. The main objectives of this study, which was conducted in a semi-arid region of Iran during the 2010 and 2011 growing seasons, were to determine the effects of interactions among irrigation...

Irrigation of farmland is a popular agricultural practice in semi-arid areas in China. However, little is known about the impacts of different irrigation strategies on grain yield and soil microbial communities, particularly economically-important arbuscular mycorrhizal (AM) fungi. The aim of...

Model WSM (Wheat Simulation Model) was developed based on the previous model (MSM, Maize Simulation Model). The planted cultivar was Shiraz with five irrigation treatments (1.2, 1.0, 0.8, and 0.5 ratios of the potential irrigation requirement under surface irrigation system and rain-fed) and...

A study was carried out in the Teaching and Research Farm of Delta State University, Asaba Campus from August to December in 2005 and repeated between March and July, 2006 to evaluate the response of maize (Zea mays) to liquid organic fertilizer. The study was conducted using a split plot fitted...