| 甜椒氮磷营养的研究 |
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| 引用本文： | 张耀栋,张春兰,高祖明,张道勇. 甜椒氮磷营养的研究[J]. 南京农业大学学报, 1990, 0(4) |
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| 作者姓名： | 张耀栋 张春兰 高祖明 张道勇 |
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| 作者单位： | 南京农业大学土壤农业化学系(张耀栋，张春兰，高祖明)，南京农业大学土壤农业化学系(张道勇) |
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| 基金项目： | 国家自然科学基金资助的项目 |
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| 摘 要： | 以蛭石为基质,研究甜椒的氮磷营养及其交互作用。适量的氮磷可促进植株生长、花芽分化和干物质积累。除苗期外,各生育期植株吸收氮磷量随氮磷水平提高而增加。多数情况下,在蕾、花期,中氮中磷(9mmol L~(-1)No_3~--N 和0.83mmol L~(-1)P)的处理,植株钾、钙、镁的积累量高于高氮高磷(12mmol L~(-1)No_3~--N 和1.26mmol L~(-1)P)处理;在座果期以后,后者超过前者。结果表明,产量以12mmol L~(-1)NO_3~--N 和1.26mmol L~(-1)P 的组合为最高,而采用9mmol L~(-1)No_3~--N 和0.83mmol L~(-1)P 的组合较为经济。
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| 关 键 词： | 甜椒 氮 磷 营养 花芽分化 |
A STUDY ON THE NITROGEN AND PHOSPHORUS NUTRITION OF SWEET PEPPER |
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| Zhang Yaodong Zhang Chunlan Gao Zuming Zhang Daoyong. A STUDY ON THE NITROGEN AND PHOSPHORUS NUTRITION OF SWEET PEPPER[J]. Journal of Nanjing Agricultural University, 1990, 0(4) |
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| Authors: | Zhang Yaodong Zhang Chunlan Gao Zuming Zhang Daoyong |
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| Affiliation: | Department of Soil Science and Agricultural Chemistry |
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| Abstract: | Pot experiments were carried out using vermiculite as medium to study the nutrition of Nand P and their interaction in sweet pepper.A proper amount of N and P could promote theplant growth,the flower-bud initiation and the accumulation of dry matter.The amount ofN and P absorbed by the plant increased with the increasing of N and P supplied in differentgrowing periods with the exception of seeding stage.In most cases,the accumulated amountsof K,Ca,and Mg in the treatment of medium N and P supplied were higher than those in thetreatment of high N and P supplied during the early and middle growing periods.But,the re-verse was true for the late growing stage.The maxium yield was obtained in the treatment of12 mmol L~(-1)NO_3~--N and 1.26mmol L~(-1)P,while the better economic treatment was found inthe combination of 9 mmol L~(-1)NO_3~--N and 0.83mmol L~(-1)P. |
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| Keywords: | sweet pepper nitrogen phosphorus nutrition flower-bud initiation |
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