| 水稻磷素营养诊断及磷肥施用量模式的研究 |
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| 引用本文： | 连楚楚,丁堃,石阶平.水稻磷素营养诊断及磷肥施用量模式的研究[J].江西农业大学学报,1989(1). |
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| 作者姓名： | 连楚楚 丁堃 石阶平 |
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| 作者单位： | 江西农业大学农学系
(连楚楚，丁堃)，江西农业大学农学系(石阶平) |
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| 摘 要： | 根据土壤速效磷含量和对磷的固定,对5种土壤浸出磷与施入磷的关系进行了研究,找出了磷肥指标系数,不同母质发育的土壤与磷的固定关系,磷肥指标系数与土壤有机质的关系,获得一定产量阶最佳速效磷水平等参数,并研究了磷的贮量分级,找出了缺磷植株外形表现及其叶片含磷数量,且建立了磷的施肥模型,在大田使用准确度达到93.88%,方法简单,易于推广。
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| 关 键 词： | 水稻 磷素营养诊断 磷肥施用量模式 |
THE STUDY ON DIAGNOSIS OF PHOSPHORUS NUTRIENT AND PATTERN OF REQUIRMENT OF PHOSPHATIC FERTILIZER |
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| Lian Chuchu et al.THE STUDY ON DIAGNOSIS OF PHOSPHORUS NUTRIENT AND PATTERN OF REQUIRMENT OF PHOSPHATIC FERTILIZER[J].Acta Agriculturae Universitis Jiangxiensis,1989(1). |
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| Authors: | Lian Chuchu |
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| Abstract: | The content of available phosphate,the content class of phosphorus reserveand the buffering power of soil to phosphate were studied in lab-experiments andpot and field trials.The following were found:the variety of buffering powersof soil to phosphate in five such-groups of soil,the parameters of optimumcontent of available phosphate in determining the grade of rice output,the co-efficient of phosphorus fertilizer index,the relation between extractive phosphateand phosphorus supply,the coefficient of phosphorus fertilizer index and thecontent of organic substance in soil,the content of phosphate in leaves and thesymptom of phosphate deficiency.A model of phosphorus fertilizer supply wasestablished,the accuracy of which in field practice reaches 93.88%. |
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| Keywords: | paddy rice diagnosis of phosphorus nutrient pattern of phosphatic fertilizer requirment |
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