| 油菜优化测土施肥中土壤供氮量的研究 |
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| 引用本文： | 连楚楚,沈润平.油菜优化测土施肥中土壤供氮量的研究[J].江西农业大学学报,1994,16(1):20-24. |
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| 作者姓名： | 连楚楚 沈润平 |
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| 作者单位： | 江西农业大学农学系 |
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| 摘 要： |
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| 关 键 词： | 油菜 施肥 配方 土壤供氮量 |
A STUDY ON THE AMOUNT OF SOIL NITROGEN SUPPLY IN OPTIMlZED SOIL TESTING AND
FERTILIZER RECOMMENDATION FOR RAPECULTURE |
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| Lian Chuchu, Shen Runping, Ding
Kun, Wang Haihui.A STUDY ON THE AMOUNT OF SOIL NITROGEN SUPPLY IN OPTIMlZED SOIL TESTING AND
FERTILIZER RECOMMENDATION FOR RAPECULTURE[J].Acta Agriculturae Universitis Jiangxiensis,1994,16(1):20-24. |
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| Authors: | Lian Chuchu Shen Runping Ding
Kun Wang Haihui |
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| Abstract: | The calculation of the
amount of nitrogenotis fertilizer application by the mean value ofsoil nitrogen supply rate has
too large errors. It greatly improves the accuracy of the amountto choose the values of
paramenters according to different soil types and fertility degrees. Nomatter in high or low
fertility soil,rape depends more on chemical nitrogenous fertilizer thanrice. And the effect of
nitrogenousfertilizer on the output increase in the middle and low fer-tility soil is markedly
larger than in the high fertility soil.So it is the key to the increase ofrape product in large areas
to pay great attention to increasing the amount of nitrogenous fer-tilizer application in the
middle and low fertility soil. |
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| Keywords: | rape optimized fertilization soil testing and fertilizer recomnlendation pararnenters |
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