The Response Of Yield Of Vegetable To Phosphorus Fertilizer, The Motion Of Phosphorus Fertilizer In Soil

The response of vegetable yield to phosphorus fertilizer were studied .The balance and potential production of accumulating phosphorus in soil were also investigated in this paper. The long-term experimentation and pot experiment, the little district barrel experimentation were adopted . The result is as follows:The yield of rape, Chinese cabbage,hot pepper were increased decrescently by applying phosphorus fertilizer , The yield of rape ,Chinese cabbge, hot pepper didn't increase by applying phosphorus fertilizer 25-200mg/kg, 50-200mg/kg,100-300mg/kg respectively The yield of vegetable were reduced in some exent with applied 300mg/kg phosphorus fertilizer, the yield of rape and cabbage deduced 16.9%, 8.8% than that applied 200mg/kg phosphorus fertilizer. The most yield of rape,cabbage,pepper were 160.8mg/kg% 188.5mg/kg> 244.0mg/kg by regession equations of the effect of phosphorus fertilizer on vegetable .While using the phosphorus fertilizer, up to the increase of organic fertile consumption, the yield of the Chinese cabbage increased remarkably Use organic fertilizer of 5000 ,10000 , 20000kg/667hm2,which is it construct 75 - 150 , 300mg/kg phosphorus fertilizer to worthy of separately, Chinese cabbage output reduced after increasing, calculated according to recession equations that phosphorus fertilizer consumption is 171.9mg/kg , 165.9mg/kg , 136.0mg/kg respectively when the cabbage were the highest in yield .improving the phosphorus fertilizer or the organic fertilizer consumption should reduced the organic and fertile or phosphorus fertilizer consumption that is worthy of constructing properly ,otherwise, it would caused the vegetables to drop in yield.The content of phosphorus in vegetable was increased remarkably by applying phosphorus fertilizer, the content of phosphorus in rape, Chinese cabbage, and hot pepper increased 57.7-157.6%, 49.6-185.6% , 7.2~16.3%( fruit in pepper) 2.3~32.5%(stem and foliage in pepper), it causes the luxurious absorption of the phosphorus of vegetables to use the excessive phosphorus fertilizer. Using the phosphorus fertilizer can improve the nitrogen content of the Chinese cabbage , but does not have remarkable difference to deal with one to each construct the phosphorus, use the phosphorus fertilizer and have no effect on potassium content of the cabbage.The zinc fertilizer have no effect on yield of the cabbage on the basis of using phosphorus fertilizer, and applying Zn have no effect on Zn and phosphorus of cabbage.Amount of soil was increased by applying phosphorus fertilizer, Olsen-P cultivated in a pot rape test, Chinese cabbage test, hot pepper test were up to 126.78mg/kg , 188.9mg/kg , 195.0mg/kg specially, it increased 113.5mg/kg ,176.2mg/kg , 177.2mg/kg separately than that didn't apply the phosphorus fertilizer, the Olsen-P of 20-60cm layer in soil was increased with too much phosphorus fertilizer(200,300mg/kg),but that did not have remarkably different to applying lower phosphorus fertilizer after two years.There were not remarkable difference for the yield of Chinese cabbage, when stopped applying phosphorus fertilizer after three years applying phosphorus fertilizer smith Chinese cabbage rotate hot pepper.