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1、增施有机肥 有机肥料中,含有大量的胶体物质,而且富含有各种养份,增施有机肥,可起到改良土壤,提高土壤肥力的双重作用。一般每亩撒施5000公斤以上,如果肥料不足,可集中条施或穴施。对充分腐熟的有机肥,在播种或定植前1～2周施入,对半腐熟的有机肥,要适当提早施用。 2、巧施化学肥 砂质土壤,保肥能力差,若化肥使用不当,养份易被淋失,造成肥料浪费。在选择氮肥时,以碳铵、硫铵
1, organic fertilizer organic fertilizer, containing a large number of colloidal substances, and rich in nutrients, organic fertilizer, can improve the soil, improve soil fertility dual role. Sprinkle more than 5000 kg per acre generally, if the lack of fertilizer, can be concentrated in the facilities or points Shi. The full maturity of organic fertilizer, sowing or planting 1 to 2 weeks before the application of semi-matured organic fertilizer, it is appropriate to early application. 2, Qiao chemical fertilizer sandy soil, poor fertilizer ability, if improper use of fertilizers, nutrients easily be leaching, resulting in fertilizer waste. In the choice of nitrogen fertilizer to ammonium bicarbonate, ammonium sulfate