| This trail is designed to monitor the process of the temporal and spatial of soil moisture and nutrients variation during wheat growth period by testing the 0～100 cm soil layer, and has got the main conclusion as: (1) Moisture and nutrients concentrated in the 0～50 cm profile in the soil, a mass of moisture and nutrients are needed during wheat growth stages of regreening, jointing, grain filling, thus, radical change of soil moisture and nutrients on the profile occurred, and the variation of moisture and nutrients happened synchronically.Available phosphorus was stable during early stages, variation amplitude of available phosphorus was a little bigger after regreening, while available potassium content kept a high level during tillering stage and reduced significantly during heading stage. (2) The variation of soil moisture and nutrients was different on different profile.The variation of soil moisture content on the 0～10 cm profile was the most significant, which was hard to assure soil moisture, and this profile was the most dangerous to crop growth;soil moisture was stable on the profile beneath, which could meet the need of crop growth;the max variation of nitrate nitrogen and alkaline nitrogen occurred on 0～10 cm profile, which proved that plant uptake available N and the process of N element tranformation occurred on this profile, and the variation got smaller as the depth increased;variation amplitude of available phosphorus had the max on 0～30 cm profile, while variation amplitude of available potassium was not obvious.There was the problem of soil moisture and nutrients spatial inconsistency, we suggested deep application of fertilizer according to soil moisture so as to relive soil moisture and nutrients spatial inconsistency. |