irrigation treatment
1.The experiments were performed in Huibei water resources science experimental station in Kaifeng, Henan province in 2004. The main treatment was irrigation regimes (W1: water-saving irrigation (Flushing irrigation at -30 kPa), W2: Rainfed with survival irrigation). The sub-treatment is N-fertilizer application rate (N1: 225 kgN/hm2; N2: 300 kgN/hm2).
2.This paper studies a case,based on the crack treatment of flume supportframe in Shaoshan Irrigation Project,recomends a new method of crack treatment by using NUS cement mortar.
3.Effectiveness of Colon Irrigation in Combination with Herb Retention-enema in the Accessory Treatment of Hepatitis Gravis
4.In the later stage of bearing, the stem thick of the most irrigation amount was smaller, compared to B2 and B3 .Treatment B4had the smallest stem thick.
5.Wastewater reclamation facilities will be developed along with the set-up of sewerage treatment plants. By 2005, the wastewater reclamation after necessary treatment in urban area will reach 300 million cubic meters (reuse for agricultural and industrial purposes, municipal use, green land irrigation and supplementary of waterways). The reuse rate of effluent from the sewerage treatment plants will go up to about 50% by 2008.
6.Topdress different amount urea on cotton under film-mulching and drip irrigation during the blooming period, the result showed that content of nitrogen of root, leaf, leaf-stem and reproductive organ of cotton with nitrogen treatment were higher than non-treatment, but the increase had no relation with the amount of nitrogen topdressing.
7.Con clu sion The viruses in the reused wastewater after conventional treatment for greening and irrigation of farmland presented less risk to human health.
8.In places where there is the demand, small wastewater treatment facilities should be used to extract and treat sewerage directly to provide water for cleaning, irrigation and municipal purpose.
9.Under the treatment of middle irrigation (W2: 1050m3 /hm2) and high phosphorus (P2: 150 kg P2O5 / hm2), crops in wheat-maize-potato system have the tendency to keep leaf chlorophyll content and root dry weight high, to maintain leaf water status well and to adjust the root/shoot ratio to the optimum value, which contributed to high grain yield .
