Four fields were designed to conduct ridge-furrow planting experiment in desert region, and soil gravimetric water content rates of that four fieldsand a conventional flat-tillage field were observed.

This paper emphatically denotes the concept and characteristics of strategic alliance and compares it with the traditional cooperation forms .

The results show that in the arid area of North China,if the rotation systems of different crops and the scientific weeding method are adopted,no-tillage technology could increase grain yield,and the output benefit of no-tillage is higher than that of conventional tillage.

Due to the distinctions of writing carrier and communication and the popularization of the network literature,there exists some unique characteristics of the network writing differed from the traditional writing,that is: the mode of non-linear thinking,the weakness of cut-and-organization,the stereotype of image and the enforcement of thinking extension.

This paper made comments on the meaning of computer writing, its distinctions from traditional writing and the exertion of computers in writing.

Network writing surpasses historically the traditional writing,for it possesses the characteristics of non-linearity, fictitiousness,interactivity and high technology.