The pairing method and the plant analysis were adopted to study the effect of different water amounts on the yield formation and dry weight of precision hill-direct-seeding rice that Peizataifeng and Yuxiangyouzhan,and compare with transplanting conventional irrigation.

By methods of field trials and randomized blocks design,the effects of nitrogen fertilizer and density on physiological characteristics of precision hill-direct-seeding rice was studied in this experiment.

By using the latest developed precision hill-direct-seeding machine, precision hill-direct-seeding rice was a Advanced , high yield, high efficiency, Light and simply cultivation method.

Application techniques of Suchu herbicide for controlling weeds were studied in direct seeded rice fields in the Middle and Lower Reaches of the Yangtze River.

Study on yield increasing mechanism of the infiltration irrigation through shallow furrow to the southern direct sowing rice;

Because of no differences with weeds in time and location, direct sowing rice with labor saving, low investment and high yield potential also has some shortages in competition for space, so the harm degree of weeds is increased, such as moleplant seed which is unsusceptible to normal weed killers and becomes a severe weed.

The insects and rice sheath blight, Thanatephorus cucumeris (Prank Donk)occurrence tendency on the direct seeding rice in northern of Zhejiang Province;