2009, 32 (2) : 76281 Journal of N anjing A gricultural U niversity http: / / nauxb1njau1edu1cn,,,. [ J ]., 2009, 32 (2) : 76281, 3,,, (, 210095) :,,,, 1210% 2416%, N P K,,,, C,,,, : ; ; ; : S64113; S143 : A : 100022030 (2009) 0220076206 Effect of different foliar fertilizers on growth of Capsicum annuum L. L I Rui2hai, HUANG Q i2wei 3, XU Yang2chun, YANG Xing2m ing, SHEN Q i2rong (College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China) Ab stra c t: A pot experiment was carried out to study the effects of different foliar fertilizers on the growth and yield and quality of Capsicum annuum L. The results obtained were listed as follows: the app lication of different foliar fertilizers could increase chili yield, 1210% 22416% higher than that of water control, and markedly increase N, P and K contents in the p lants. The foliar app lications of suitable concentration of brassinolide and nutrient substance significantly increased p lant growth, enhanced chloro2 phyll content and net photosynthetic rate of chili leaves and increased the biomass of p lants, imp roved contents of vitam in C, solu2 ble sugar and decreased the content of nitrate in chili fruit, imp rove significantly the fruit quality. The rational m ixture of nutrient substance and m icroelements with brassinolide had the most op timum results in effects of stimulating its growth, increasing the yield and imp roving fruit quality. Key wo rd s: foliar fertilizer; chili (Capsicum annuum L. ) ; growth; yield [ 1 ], [ 2 ],,, [ 3 ],, 60%, [ 4 ],, C, [ 5 ] [ 3-7 ],,, ;, ;,,,,,, : 2008201216 : (2006BAD10B09) :, 3 :,,, E2mail: qwhuang@ njau1edu1cn
2, : 77 1 111 ( ), : 8715 mg kg - 1 1111 mg kg - 1 8215 mg kg - 1 2112 g kg - 1 ph 6182 (N, 46% ) ( P 2 O 5, 16% ) ( K 2 O, 60% ) ( K 2 O, 5410% ), (10210210) ; ( 211% P 2 O 5 518% K 2 O 119% 3418% ) 112 7 : 1: ; 2: ( 44195%, 200 g L - 1 ) + ( S2240, 1 ml L - 1, ) ; 3: + ; 4: + (0110 ml L - 1 ) + ; 5: + (01075 ml L - 1 ) + ; 6: + (0105 ml L - 1 ) + ; 7: + (0110 ml L - 1 ) + + ( Fe Cu Mn 60 g L - 1, Zn 80 g L - 1 ) 1 000 +B (, 100 g L - 1 ) + KH 2 PO 4 (150 g L - 1 ), FeSO 4 7H 2 O CuSO 4 5H 2 O MnSO 4 7H 2 O ZnSO 4 7H 2 O, ( 19 cm, 18 cm), 310 kg, 1510 g (10210210) 415 g 2006 5 20, 1, 4 2, 0120 g, 0130 g, (6 25 ) (7 20 ), 3, 7 7 ( ) 1, 7 17, 7 27 2 3, 250 ml, 8 15, 113 11311 ph [ 8 ], 11312 1 ( 7 6 ), 3,, 2 11313 L I26400 3 1 d 95% [ 9 ], 3 2 d 1, a b 11314,, /, 1 2 C : 2, 62 [ 9 ] ; : [ 9 ] ; : [ 9 ] 114 Excel2000 SPSS1110 2 211 1, 2173 2193 g, 017% 811%, ( 4 5 6 7) 1210% 2416% 7, 4 5 6 214% 416% 917% ; 4, 2 3, 1010%,, 4 7,,,
78 32 : 1 Ta b le 1 Effec ts o f d iffe ren t tre a tm e n ts o n the yie ld o f ch ili Treatment /g Single fruit weight / Fruit amount per p lant /g Yield per p lant 1 2171 0107 d 2315 018 a 61190 5160 c 2 2173 0101 cd 2714 016 a 70175 5198 bc 3 2177 0109 c 2617 017 a 69134 4199 bc 4 2187 0104 b 2910 015 a 75133 5115 a 5 2184 0107 bc 2713 015 a 73176 6143 a 6 2180 0105 bc 2514 015 a 70130 4138 c 7 2193 0108 a 2815 012 a 77115 4189 a 1) 5% Values followed by different superscrip t letters in a column are significantly dif2 ferent at 0105 level using LSD test. 2) 1. W ater control; 2. 2 Treatment 2: Am ino acids ( 200 g L - 1 ) + surfactant ( S2240, 1 ml L - 1 ) ; 3. 3 Treatment 3: Nutrient substance + surfactant; 4. 4 Treatment 4: Nutrient substance +BRs ( brassinolide) (0110 ml L - 1 ) + surfactant; 5. 5 Treatment 5: Nutrient substance + BR s ( 01075 ml L - 1 ) + surfactant; 6. 6 Treatment 6: Nutrient substance +BR s (0105 ml L - 1 ) + surfactant; 7. 7 Treatment 7: Nutrient substance +BR s (0110 ml L - 1 ) +m icroele2 ments ( Fe, Cu, Mn 60 g L - 1, Zn 80 g L - 1 ) + surfactant 1 000 A ll treatments were respectively diluted one thousand multip le by adding water. 212 The same as follows. 21211 2 3 7110 7718 cm, Ta b le 2 Effec ts o f d iffe ren t tre a tm e n ts o n b io lo g ica l p rop2 e rtie s o f ch ili p lan t, 9185 11145 cm, 213% 1819% ( 2) ( 4 5 6 7) 2, 7,, 0172 cm, 3 0181 0184 cm Treatment /cm Height increment / B ranch number /cm Stem diameter increment 1 9163 0168 d 1013 112 b 01081 c 2 9185 0145 d 1017 111 b 01097 c 3 9190 0180 cd 1115 015 b 01101 bc 4 11110 0142 b 1810 016 a 01112 ab 5 10165 0145 bc 1517 115 ab 01107 bc 6 10103 0164 c 1412 110 ab 01109 b 7 11145 0150 a 1713 018 a 01116 a, 4 7 ( 2) 21212 3, ( 1), a 111% 813%, b 814% 1910% 7 4 b 1 2; 7 a b, 4 117% 114% 4 2 3 5 6, a 513% 514% 116% 218%, b 812% 513% 419% 512%, ( 4 5 6) 4 7 1 F ig11 Effe c ts o f d iffe ren t tre a tm e n ts o n ch lo rop hyll co n2 ten t o f ch ili le ave s 2 F ig12 Effec ts o f d iffe re n t trea tm en ts o n ne t p ho to syn the t2 ic ra te o f ch ili lea ve s
2, : 79 2, 9106 10156 mol m - 2 s - 1, (7192 mol m - 2 s - 1 ) 1414% 4610% 7, 4 4 5 6, 2 3 21213 ( 3), 913% 3016%, 312% 2410%, ( 4 5 6 7) 7, 4 5 6, 517% 1112% 918%, 314% 912% 715%, 4, 2 3 B P K,, Treatment 3 Ta b le 3 Effec ts o f d iffe ren t trea tm en ts o n p lan t w e igh t o f ch ili g p lant - 1 Fresh weight Shoot Root Plant D ry weight Shoot Root Plant 1 67177 4161 25186 2176 93163 7135 c 16113 2125 5103 0153 21116 3102 d 2 79124 4113 23108 2100 102132 8178 c 17119 1119 4166 0145 21185 1112 cd 3 84139 4192 27164 3100 112103 6156 b 19119 1114 4110 0150 23129 1192 c 4 87159 4175 28116 2146 115176 7170 ab 19154 2107 5181 0151 25135 1163 b 5 80194 5193 29108 2143 110102 7118 bc 19138 1167 4164 0155 24102 1130 bc 6 86110 3119 25136 2142 111146 7150 bc 19130 1164 5110 0124 24140 1111 bc 7 92157 4167 29175 2178 122133 5172 a 20189 1122 5133 0135 26122 2176 a 213 21311 C 1 C 2, C ( 3) 2 C 39610 51418 mg kg - 1, 2 (34211 mg kg - 1 ) 7, 4 5 6, 511% 713% 1315%, 4, 2 3 4312% 2317% 1214% 21312 4, ( 6 ) 1 2 1,, 410% 3018% 7, 4, 2 5 6, 2518% 1316% 2114% 3 C 4 F ig13 Effec ts o f d iffe re n t tre a tm e n ts o n the co n te n t o f F ig14 Effe c ts o f d iffe re n t trea tm en ts o n the co n ten t o f vitam in C in ch ili so lub le suga r in ch ili 21313 5, 1 2 ( 4 5 6 7),
80 32 5 F ig15 Effec ts o f d iffe re n t tre a tm e n ts o n the co n te n t o f n itra te in ch ili 214 6 N P K F ig16 Effec ts o f d iffe ren t trea tm en ts o n the up ta ke o f N, P a nd K in ch ili p lan ts, ( 6) 0138 0154 g, (0137 g) 311% 4418%, ( 2 ) 7, 4 0124 0129 g, ( 0123 g) 518% 2812% 7, 4 5 6 417% 1119% 1013%, 4 2 3, 64140 77158 mg, ( 60110 mg) 711% 3010% 7 4 5 6, 1312% 1816% 1614%, 3 311,,, [ 10-11 ] [ 6 ], BR s (0110 mg kg - 1 ),, [ 7 ], 2120,,,,, Fe Cu Zn Mn,,, 714%, [ 12 ] 312 [ 2 ],,, N P K,, C,, ( 7),,, 1 2,, 2, 15 d, 1, 2,, [ 13-14 ], C B
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