板栗产区有机堆肥产物磷形态特征及其对叶片磷含量的影响

发布时间：2018-03-24 11:25

本文选题：有机堆肥产物　切入点：磷形态　出处：《环境科学》2017年03期

【摘要】：采用Dou的磷形态分级方法和大田试验,研究了板栗产区栗蓬栗叶-菌渣-秸秆-鸡粪混合堆肥(BYZ)、菌渣鸡粪堆肥(ZF)、栗蓬栗叶-菌渣-鸡粪堆肥(BZ1和BZ2)这4种有机物料中的磷形态特征及其对结果枝叶片磷含量的影响.结果表明:1 4种有机堆肥产物全磷含量表现为:BZ1(10.61 g·kg-1)ZF(9.03 g·kg-1)BYZ(8.56 g·kg-1)BZ2(7.68 g·kg-1),并均以无机磷为主,无机磷占全磷的比例在62.88%~73.62%之间;2 4种有机堆肥产物各形态总磷中除ZF以较稳定的HClP含量及其占回收全磷(Prt)比例最高以外,其他3种均以活性的H_2O-P含量及其占回收全磷(Prt)比例最高,Na OH-P含量均较低;3各形态中的无机磷以活性的H_2O-Pi或Na HCO3-Pi占形态总磷的比例最高(89.17%~96.00%),且在回收全磷中BZ2中的无机磷主要分布在H_2O-Pi和HCl-Pi,其他3种的无机磷主要分布在H_2O-Pi、HCl-Pi和Na HCO3-Pi,各形态有机磷主要分布于残留态磷,BZ2中比例最高;4等磷量大田试验结果表明,板栗结果枝叶片单位面积叶片磷含量整体表现为BZ2BZ1BYZZFCK,高峰期(7月)、平均每月叶片磷含量增值与堆肥产物中水溶性无机磷含量及其占回收全磷的比例呈显著或极显著正相关,推测集中深施情况下有机堆肥产物中水溶性无机磷含量及占全磷的比例是当年板栗叶片磷吸收的重要影响因素.整体研究表明,栗蓬栗叶-菌渣-鸡粪堆肥(BZ2)具有高比例的水溶态无机磷和残留态有机磷库,使板栗叶片磷含量最高,且其原料中板栗产业废弃物配比高达80%(栗蓬栗叶60%+菌渣20%),是产区好氧堆肥原料体系的较佳选择.
[Abstract]:The phosphorus classification method of Dou and field test were used. The phosphorus speciation characteristics of chestnut leaf, fungus residue, straw and chicken manure compost in chestnut producing area were studied. The phosphorus speciation of four organic materials, chestnut leaf, bacteria dregs and chicken manure compost BZ1 and BZ2), and their effects on the results of chestnut leaf and chicken manure compost were studied. The results showed that the content of total phosphorus was 10.61g kg-1)ZF(9.03 g kg-1)BYZ(8.56 g kg-1)BZ2(7.68 g kg-1C, and inorganic phosphorus was the main one. The proportion of inorganic phosphorus to total phosphorus was between 62.88% and 73.62%. In the total phosphorus of 24 organic compost products, the content of HClP and the proportion of ZF in the recovery of total phosphorus were the highest, except for the stable content of ZF. The other three species have the highest content of active H_2O-P and their ratio to total phosphorus recovery. The content of Na OH-P is lower. The content of inorganic phosphorus in all forms is lower. The highest ratio of active H_2O-Pi or Na HCO3-Pi to total phosphorus is 89.17000.There is no BZ2 in the recovery of total phosphorus. Organophosphorus was mainly distributed in H_2O-Pi and HCl-Pi.The other three kinds of inorganic phosphorus were mainly distributed in H2O-Pike HCl-Pi and NaHCO3-Pi.The results of field experiments showed that organic phosphorus of various forms mainly distributed in the highest proportion of residual phosphorus in BZ2. The results showed that the total phosphorus content in the leaves per unit area of chestnut was BZ2BZ1BYZZFCK.The peak period (July), the average monthly increment of leaf phosphorus content was significantly or extremely significantly correlated with the water-soluble inorganic phosphorus content in compost products and the proportion of total phosphorus recovered in compost products. It is inferred that the content of water-soluble inorganic phosphorus and the proportion of total phosphorus in organic compost products under concentrated and deep application are the important factors affecting phosphorus absorption in chestnut leaves in the current year. The chestnut leaf, bacteria residue and chicken manure compost BZ2) have high water soluble inorganic phosphorus and residual organic phosphorus storage, which makes the highest phosphorus content in the leaves of chestnut. The proportion of chestnut industrial waste is as high as 80% (60% chestnut leaf residue 20%), which is the best choice for aerobic composting raw material system in producing area.
【作者单位】：北京林业大学林学院省部共建森林培育保护与利用教育部重点实验室;
【基金】：“十二五”国家科技支撑计划项目(2013BAD14B0402) 国家林业公益性行业科研专项重大项目(201204401)
【分类号】：S141.4;X71

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