Science applies biogas fertilizer to increase carrot yield

Carrots are cultivated in the Luzhou region. Therefore, it is more important to study the non-pollution formulas for fertilizers that produce good quality carrots. Based on the rational application of inorganic fertilizers and organic fertilizers, balanced fertilization and application of biological fertilizers will reduce the use of chemical fertilizers, increase the utilization of fertilizers, and improve the quality of carrots. For this reason, we have done the following fertilization tests.

The experimental site is located at Shangheya Village, Nanchentun Township, Gansu District, Ganzhou City. The upland soil is cinnamon soil. The medium fertility is moderate. The land is flat and there are irrigation conditions. The precipitation and temperature can meet the needs of carrot growth. The soil nutrient status was: 15.7 grams of organic matter per kilogram, 1.11 grams of total nitrogen, 79 milligrams of available nitrogen, 1.59 grams of total phosphorus, 22.9 grams of total potassium, and 290 milligrams of available potassium.

The test crops were carrots, and the variety was a Japanese five-inch carrot from Takasaki Kuroda. The test fertilizers are organic fertilizers and inorganic fertilizers. Organic fertilizers include organic fertilizers and biogas residue organic fertilizers. Inorganic fertilizers are U.S. and DPG, Urea, superphosphate, and potassium chloride.

The trial has a total of 5 treatments, 3 repetitions, a total of 15 communities, each area of ​​15 square meters. On the 1st, the treatment of 15 kg of diammonium phosphate and 7.5 kg of urea (No. 1 treatment is the control); No. 2 treatment of 160 kg of conventional organic fertilizer, 30 kg of superphosphate, and 10 kg of potassium chloride; Conventional organic fertilizer 200 kg, superphosphate 30 kg, potassium chloride 10 kg; No. 4 treatment Mushi biogas residue organic fertilizer 100 kg, superphosphate 30 kg, potassium chloride 10 kg; No. 5 treatment Mushi biogas residue organic Fertilizer 140 kg, superphosphate 30 kg, potassium chloride 10 kg. Sowing on May 15th, June 20th each treatment of unified thinning and topdressing DAP and urea.

Statistical results: The yields per mu were 4858 kg, 5040.3 kg, 5111.4 kg, 4702.5 kg, and 4978 kg, respectively. The increase rates compared to the control were: 3.75%, 5.22%, -3.2%, 2.47%. The individual root weights were treated as 0.126 kg, 0.135 kg, 0.149 kg, 0.127 kg, and 0.13 kg.

Among the 5 treatments, 100 kg of biofertilizer was applied to treat 4 mu of land and the yield was the lowest, indicating that this level of fertilizer could not meet the production needs of local carrots, and 140 kg of Mushi showed a tendency of increasing production compared with conventional fertilization. From the root weight analysis of carrots, there was no difference in bioslag organic fertilization and conventional fertilization, but it was lower compared with conventional organic fertilizer application.

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