Research Article

Fertilization and Colors of Plastic Mulch Affect Biomass and Essential Oil of Sweet-Scented Geranium

Table 2

The effect of different colors of plastic mulch and fertilizers on the survival and leaf fresh weight of sweet-scented geranium.

Survival (%)
FertilizerColors of plastic mulch
ControlWhiteBlackSilver colored

First harvest
Control58.33Aa100.00Aa100.00Aa100.00Aa
Cattle manure58.33Aa91,66Aa100.00Aa100.00Aa
NPK 3-12-658.33Aa100.00Aa100.00Aa100.00Aa
Cattle manure + NPK 3-12-625.00Bb100.00Aa100.00Aa100.00Aa

Second harvest
Control58.33Aa91.66Aa100.00Aa100.00Aa
Cattle manure58.33Aa100.00Aa100.00Aa100.00Aa
NPK 3-12-658.33Aa100.00Aa100.00Aa100.00Aa
Cattle manure + NPK 3-12-616.66Ba100.00Aa100.00Aa100.00Aa

Third harvest
Control58.33Aa100.00Aa100.00Aa100.00Aa
Cattle manure58.33Aa91.66Aa100.00Aa100.00Aa
NPK 3-12-641.66Ba100.00Aa100.00Aa100.00Aa
Cattle manure + NPK 3-12-616.66Bb91.66Aa100.00Aa100.00Aa

Fourth harvest
Control25.00Bb91.66Aa100.00Aa100.00Aa
Cattle manure33.33Ba83.33Aa100.00Aa91.66Aa
NPK 3-12-633.33Ba83.33Aa100.00Aa100.00Aa
Cattle manure + NPK 3-12-625.00Bb91.66Aa50.00Bb100.00Aa

Leaf fresh weight (g·plant−1)
FertilizerColors of plastic mulch
ControlWhiteBlackSilver colored

First harvest
Control107.65aA164.33bA150.07aA303.09aA
Cattle manure70.83Ba346.65Aa179.76Ba319.15Aa
NPK 3-12-678.51Ba303.38Aa148.52Ba248.25Aa
Cattle manure + NPK 3-12-662.53Ba374.98Aa261.36Aa363.86Aa

Second harvest
Control106.65Aa311.32Aa196.28Aa372.15Aa
Cattle manure82.21Aa332.41Aa232.34Aa404.18Aa
NPK 3-12-665.17Ba368.68Aa215.04Ba359.23Aa
Cattle manure + NPK 3-12-623.28Ba299.97Aa272.50Aa305.56Aa

Third harvest
Control141.66Ba425.00Aa187.50Ba389.83Aa
Cattle manure137.50Ba555.00Aa316.66Ba482.44Aa
NPK 3-12-6136.11Aa434.16Aa326.66Aa334.71Aa
Cattle manure + NPK 3-12-621.66Ba456.39Aa324.16Aa451.29Aa

Fourth harvest
Control23.33Aa23.33Aa141.66Aa269.16Aa
Cattle manure55.00Aa55.00Aa183.99Aa207.50Aa
NPK 3-12-663.33Aa63.33Aa203.33Aa138.33Aa
Cattle manure + NPK 3-12-6150.00Aa150.00Aa216.66Aa289.16Aa

Lowercase letters indicate differences within columns, and uppercase letters indicate differences within rows. Values followed by the same letter are not statistically different based on the Scott-Knott test ( ).