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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BZ2>BZ1>BYZ>ZF>CK,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.
In this paper, we used Dou’s phosphorus morphological grading method and field experiments to study the effects of BYZ, ZF, chestnut chestnut leaf-bacteria residue The results showed that the total phosphorus content of 14 organic composting products was as follows: BZ1 (10.61 g · kg -1) kg-1)> ZF (9.03 g · kg -1)> BYZ (8.56 g · kg -1)> BZ 2 (7.68 g · kg -1) (62.88% -73.62%). Among all the 24 forms of organic composting products, all the three forms of active phosphorus, H 2 O 2, H 2 O and H 2 O were the most stable forms of HClP and the highest percentage of total phosphorus (Prt) P content and the proportion of total phosphorus (Prt) in recovery and Na OH-P content were all lower than those in the control group. (3) The ratio of active H 2 O-Pi or Na HCO 3 -Pi to total phosphorus was the highest (89.17 % ~ 96.00%). The inorganic phosphorus in BZ2 was mainly distributed in H_2O-Pi and HCl-Pi, and the other three kinds of inorganic phosphorus were mainly distributed in H_2O-Pi, HCl-Pi and Na HCO3- All forms of organic phosphorus are mainly distributed in the residual phosphorus, BZ2 in the most proportion ; 4 and other phosphorus field test results showed that chestnut chestnut leaves per unit area of leaf phosphorus content overall performance of BZ2> BZ1> BYZ> ZF> CK, the peak (July), the average monthly leaf phosphorus content and composting products The content of water-soluble inorganic phosphorus and its proportion in total phosphorus recovery showed a significant or very significant positive correlation. It is speculated that the proportion of water-soluble inorganic phosphorus and total phosphorus in concentrated organic matter is the importance of phosphorus absorption in chestnut leaves Influencing factors.The overall study showed that chestnut chestnut chestnut residue - chicken manure composting (BZ2) has a high proportion of water-soluble inorganic phosphorus and residual organic phosphorus pool, so that the highest phosphorus content in chestnut leaves, and the raw materials in the chestnut industry abandoned Matter ratio of up to 80% (Chestnut chestnut leaf 60% + 20% bacteria residue), is the preferred aerobic composting system raw material production system.