
Effects of foliar spraying potassium-containing organic water-soluble fertilizer on rapeseed growth and yield
Ya-ping CHEN, Xiao-tian ZHU, Yue HONG, Mao-run ZHOU, Chao ZHENG, Cui-ying WEI, Mei-song ZHOU, Yan YU, Fu-gui ZHANG, Yan-hua KAN, Ke-jin ZHOU
CHINESE JOURNAL OF OIL CROP SCIENCES ›› 2023, Vol. 45 ›› Issue (1) : 131-137.
Effects of foliar spraying potassium-containing organic water-soluble fertilizer on rapeseed growth and yield
To improve the seed yield, foliar spraying of potassium fertilizer was studied to explore the effect of potassium-containing organic water-soluble fertilizer on rapeseed growth and yield. Cultivar Wangchengyou 8 was used as material, with 3 spraying periods (seedling, early bloom stage, seedling + early bloom stage) and 5 potassium-containing organic water-soluble fertilizer application rates (0, 375, 750, 1125, 1500 g) treatments. Two-factor randomized block test was designed. Results showed that, after spraying 750 g potassium-containing organic water-soluble fertilizer at rapeseed seedling or early bloom stage, growth and development indexes (including plant height, root neck thickness, and biomass) were significantly increased. And spraying twice at seedling and early bloom stage had a more significant impact on growth and development than spraying at a single period. Spraying 750 g per hectare at both seedling and early blooming increased the number of effective siliques per plant and seeds number per silique. An increase of 39.07% on seed yield and 44.22% on oil production per hectare were also observed compared with control. By spraying 750 g per hectare at seedling and early blooming stages, plant growth, yield, seed oil, and economic benefits could be significantly increased.
rapeseed (Brassica napus L.) / potassium / potassium-containing organic water-soluble fertilizer / yield / economic benefits {{custom_keyword}} /
Fig. 1 Effects of potassium-containing organic water-soluble fertilizer on rapeseed biomass in 3 periods图1 含钾有机水溶肥对油菜3个调查时期生物量的影响 |
Table 1 Effects of potassium-containing organic water-soluble fertilizer on 3 developmental periods表1 含钾有机水溶肥的喷施对三个发育时期油菜生长的影响 |
喷施时期和用量 | 根颈粗 /mm Rhizome diameter | 株高 /cm Plant height | 绿叶数 Green leaves | 总叶数 Total leaf number | SPAD | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Spray periods and amounts | S | F | M | S | F | M | S | F | S | F | S | F | |
CK | 4.64c | 10.38cde | 11.48ef | 24.12a | 134.64cdef | 138.82cdef | 5.2a | 24.2c | 6.6a | 26.0cde | 35.42b | 47.78efg | |
苗期 S | 375 | 5.09b | 10.70cde | 12.10de | 25.04a | 135.96bcde | 141.02bcde | 5.8a | 25.0bc | 6.4a | 26.6cde | 35.07bc | 48.76cdefg |
750 | 6.36a | 12.00bc | 13.23cd | 25.02a | 143.44ab | 149.16ab | 6.2a | 34.4a | 7.0a | 35.6ab | 39.38a | 51.68bc | |
1125 | 4.42d | 9.47de | 10.46f | 23.92a | 129.91def | 134.86def | 5.6a | 22.6c | 6.4a | 22.0de | 34.50c | 47.20fg | |
1500 | 3.92e | 8.78e | 10.16f | 23.44a | 127.05f | 130.24f | 5.8a | 21.8c | 6.4a | 22.2de | 32.28d | 46.62fg | |
初花期 F | 375 | 11.32cd | 13.14cd | 138.38bcd | 144.10bcd | 24.6c | 25.0de | 50.48bcde | |||||
750 | 13.79ab | 15.43b | 149.60a | 157.96a | 32.0ab | 34.2bc | 53.08ab | ||||||
1125 | 10.82cde | 12.50de | 132.33cdef | 138.38cdef | 20.6c | 23.4de | 49.66cdef | ||||||
1500 | 9.39de | 11.28ef | 129.58ef | 134.64def | 19.8c | 20.e | 47.90defg | ||||||
苗期+初花期 SF | 375 | 5.18b | 12.31bc | 14.27bc | 24.73a | 134.75cdef | 141.46bcde | 5.9a | 26.6bc | 6.5a | 29.2bcd | 35.16bc | 51.06bcd |
750 | 6.32a | 15.20a | 17.28a | 25.12a | 140.36bc | 146.52bc | 6.1a | 37.6a | 6.9a | 43.2a | 39.74a | 56.24a | |
1125 | 4.55cd | 11.87bc | 13.17cd | 25.08a | 130.24def | 133.76ef | 5.7a | 24.4de | 6.5a | 24.de | 34.53bc | 46.44g | |
1500 | 3.94e | 9.62de | 11.45ef | 23.66a | 126.72f | 129.36f | 5.6a | 22.6de | 6.3a | 25.4de | 32.32d | 46.02g |
Table 2 Effects of potassium-containing organic water-soluble fertilizer on yield related traits in rapeseed maturation period表2 含钾有机水溶肥对成熟期油菜经济性状及产量构成因子的影响 |
喷施时期和用量Spray periods and amounts | 单株有效分枝数 Effective branch | 主花序有效角果 Effective main inflorescence | 单株有效角果 Silique per plant | 千粒重 /g TSW | 每角粒数 Seeds per silique | 小区实产 /(kg /10 m2) Cell production | 折合产量 /(kg/hm2)Equivalent output | |
---|---|---|---|---|---|---|---|---|
CK | 5.2a | 51.0bcd | 148.6bcde | 3.70a | 21.37cde | 1.75defg | 1745.5defg | |
S | 375 | 5.6a | 51.4bcd | 153.6bcde | 3.79a | 22.37bcd | 1.87cdef | 1870.0cdef |
750 | 6.4a | 55.8abc | 168.6bcd | 3.78a | 24.00abc | 1.94cd | 1935.0cd | |
1125 | 5.4a | 49.2bcd | 144.6bcde | 3.79a | 20.76de | 1.80def | 1800.0def | |
1500 | 4.8a | 46.6cd | 127.4de | 3.71a | 19.17e | 1.53gh | 1533.0gh | |
F | 375 | 5.6a | 53.8abc | 168.8bcd | 3.80a | 22.84bcd | 1.93cd | 1932.5cd |
750 | 6.2a | 57.4ab | 186.2b | 3.81a | 24.77ab | 2.05bc | 2048.5bc | |
1125 | 5.4a | 52.4bcd | 165.6bcd | 3.80a | 21.51cde | 1.89cde | 1890.0cde | |
1500 | 5.2a | 47.4bcd | 142.2cde | 3.78a | 20.58de | 1.65fgh | 1652.5fgh | |
SF | 375 | 6.0a | 55.8abc | 185.2bc | 3.73a | 24.3abc | 2.21ab | 2212.5ab |
750 | 6.2a | 63.6a | 236.2a | 3.82a | 26.67a | 2.43a | 2427.5a | |
1125 | 4.8a | 47.4bcd | 129.2de | 3.69a | 21.93bcde | 1.71efg | 1705.0efg | |
1500 | 5.2a | 42.6d | 110.4e | 3.67a | 20.40de | 1.46h | 1455.0h |
Table 3 Seed quality and oil production in rapeseed maturing stage after potassium-containing organic water-soluble fertilizer spray表3 含钾有机水溶肥喷施对成熟期油菜籽粒品质和产油量的影响 |
喷施时期和用量 Spray periods and amounts | 蛋白质含量 /% Protein content | 含油量 /% Oil content | 产油量 /(kg/hm2) Oil production | |
---|---|---|---|---|
CK | 19.02bc | 38.87b | 678.48b | |
S | 375 | 19.14bc | 39.33ab | 735.47ab |
750 | 19.55b | 39.51ab | 764.52ab | |
1125 | 18.99bc | 38.93b | 700.74b | |
1500 | 18.45bc | 39.00b | 597.87b | |
F | 375 | 19.15bc | 39.79ab | 768.94ab |
750 | 19.35bc | 39.89ab | 817.15ab | |
1125 | 19.04bc | 38.90b | 735.21b | |
1500 | 19.05bc | 38.87b | 642.33b | |
SF | 375 | 19.20bc | 39.64ab | 877.04ab |
750 | 20.79a | 40.31a | 978.50a | |
1125 | 19.02bc | 38.91b | 663.42b | |
1500 | 18.34c | 38.96b | 566.87b |
Table 4 Effect of potassium-containing organic water-soluble fertilizer on economic benefit of rapeseed production表4 含钾有机水溶肥对油菜经济效益的影响 |
喷施时期和用量 Spray periods and amounts | 菜籽产量 /(kg/hm2) Rapeseed yield | 菜籽单价 /(yuan/kg) Unit price of rapeseed | 产值 /(yuan/hm2) Output | 成本投入 /(yuan/hm2) Input | 产投比 Input-output ratio | 经济效益 /(yuan/hm2) Economic benefits | |
---|---|---|---|---|---|---|---|
CK | 1745.5 | 5.7 | 9949.35 | 4500.0 | 2.21 | 5449.35h | |
S | 375 | 1870.0 | 5.7 | 10 659.00 | 4612.5 | 2.31 | 6046.50f |
750 | 1935.0 | 5.7 | 11 029.50 | 4725.0 | 2.33 | 6304.50e | |
1125 | 1800.0 | 5.7 | 10 260.00 | 4837.5 | 2.12 | 5422.50i | |
1500 | 1533.0 | 5.7 | 8738.10 | 4950.0 | 1.77 | 3788.10l | |
F | 375 | 1932.5 | 5.7 | 11 015.25 | 4612.5 | 2.39 | 6402.75d |
750 | 2048.5 | 5.7 | 11 676.45 | 4725.0 | 2.47 | 6951.45c | |
1125 | 1890.0 | 5.7 | 10 773.00 | 4837.5 | 2.23 | 5935.50g | |
1500 | 1652.5 | 5.7 | 9419.25 | 4950.0 | 1.90 | 4469.25j | |
SF | 375 | 2212.5 | 5.7 | 12 611.25 | 4725.0 | 2.67 | 7886.25b |
750 | 2427.5 | 5.7 | 13 836.75 | 4950.0 | 2.80 | 8886.75a | |
1125 | 1705.0 | 5.7 | 9718.50 | 6175.0 | 1.57 | 4543.50k | |
1500 | 1455.0 | 5.7 | 8293.50 | 6400.0 | 1.30 | 2893.50m |
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