Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings

The effect of constant and fluctuating soil temperature and two soil moisture regimes on the growth, development, transpiration and nutrient uptake by maize seedlings was studied in a greenhouse investigation. The constant root temperatures were maintained at 30, 34, 35, 36, 37, and 38°C for both 25...

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Main Author: Lal, R.
Format: Journal Article
Language:Inglés
Published: Springer 1974
Subjects:
Online Access:https://hdl.handle.net/10568/97944
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author Lal, R.
author_browse Lal, R.
author_facet Lal, R.
author_sort Lal, R.
collection Repository of Agricultural Research Outputs (CGSpace)
description The effect of constant and fluctuating soil temperature and two soil moisture regimes on the growth, development, transpiration and nutrient uptake by maize seedlings was studied in a greenhouse investigation. The constant root temperatures were maintained at 30, 34, 35, 36, 37, and 38°C for both 250 and 750 cm of soil moisture suctions. The fluctuating root temperature, for 250 cm of soil moisture suction only, of 30-35, 30-39, 30-40, 30--45and 30--48°C were maintained to simulate the soil temperature regime under field conditions. The constant root temperature of 35°C and fluctuating temperature between 30-40°C significantly decreased the shoot and root growth and transpiration rate. On the average, there was 1.3 and 0.7 g decrease in fresh shoot weight and 0.36 and 0.30 g in fresh root weight per degree increase in root temperature for 250 and 750 soil moisture suction, respectively. In general, the effect of high soil moisture suction on maize seedlings was more severe when at high root temperature. The shoot and root concentration of N, P, and K decreased while that of B increased with increase in root temperature. The root concentration of Zn also decreased with increase in root temperature.
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spelling CGSpace979442024-08-27T10:35:31Z Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings Lal, R. nutrient uptake maize seedlings soil temperature The effect of constant and fluctuating soil temperature and two soil moisture regimes on the growth, development, transpiration and nutrient uptake by maize seedlings was studied in a greenhouse investigation. The constant root temperatures were maintained at 30, 34, 35, 36, 37, and 38°C for both 250 and 750 cm of soil moisture suctions. The fluctuating root temperature, for 250 cm of soil moisture suction only, of 30-35, 30-39, 30-40, 30--45and 30--48°C were maintained to simulate the soil temperature regime under field conditions. The constant root temperature of 35°C and fluctuating temperature between 30-40°C significantly decreased the shoot and root growth and transpiration rate. On the average, there was 1.3 and 0.7 g decrease in fresh shoot weight and 0.36 and 0.30 g in fresh root weight per degree increase in root temperature for 250 and 750 soil moisture suction, respectively. In general, the effect of high soil moisture suction on maize seedlings was more severe when at high root temperature. The shoot and root concentration of N, P, and K decreased while that of B increased with increase in root temperature. The root concentration of Zn also decreased with increase in root temperature. 1974-06 2018-11-14T06:50:56Z 2018-11-14T06:50:56Z Journal Article https://hdl.handle.net/10568/97944 en Limited Access Springer Lal, R. (1977). Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings. Plant and Soil, 40, 589-606.
spellingShingle nutrient uptake
maize
seedlings
soil temperature
Lal, R.
Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title_full Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title_fullStr Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title_full_unstemmed Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title_short Effects of constant and fluctuating soil temperature on growth, development and nutrient uptake of maize seedlings
title_sort effects of constant and fluctuating soil temperature on growth development and nutrient uptake of maize seedlings
topic nutrient uptake
maize
seedlings
soil temperature
url https://hdl.handle.net/10568/97944
work_keys_str_mv AT lalr effectsofconstantandfluctuatingsoiltemperatureongrowthdevelopmentandnutrientuptakeofmaizeseedlings