Field experiment on total nitrogen fertilizer control of summer peanut
How to achieve high yield of peanut planting? For peanut growers, peanut fertilization is a very important link. Below, we have compiled a field trial study on the total control of summer peanut nitrogen fertilizer for reference.
First, the test materials and methods
The test fertilizer urea is large granular urea, the nitrogen content is 46.4%, the phosphate fertilizer is selected to pass the calcium phosphate, the effective content is 12.2%, the potassium fertilizer is the imported potassium sulfate, and the potassium oxide content is 50%. The test peanut variety Yuhua No. 18 was planted on June 1, 2016, harvested on September 17, and the field growth period was 109 days.
The experiment set 4 treatments, 3 repetitions, and the cells were randomly arranged. Each cell is 6.00m long, 3.34m wide, and has a cell area of ​​20m2. There is a 20cm high æ¯ between each treatment to prevent drowning and manure; there is a 100cm wide walkway between the repeats, which is convenient for field observation. Fertilization was carried out on June 28, 2016. Each treatment was completed by one person, and the application of fertilizer was uniform. Other field management measures should be consistent. The fertilization levels of each treatment are shown in Table 1.
Table 1 Experimental design of total nitrogen nitrogen fertilizer control in summer (kg/667m2)
Second, the test location and basic conditions
The test site is arranged in the horticultural field of Xiangyang District. The terrain is flat and the ground force is relatively uniform. It belongs to the sandy soil of the yellow tidal soil sub-type. The area has the tradition of planting peanuts for many years. The basic conditions of the test plots are shown in Table 2.
Table 2 Basic conditions of summer peanut nitrogen fertilizer total control experiment
Third, test results and analysis
(1) The statistical results of the test output are shown in Table 3.
At the time of the experiment, all the peanuts in the plot were harvested and labeled, and each plot was individually harvested and then dried in the drying yard to achieve separate yielding. The yield results of each plot are shown in Table 3.
Table 3 Summer peanut nitrogen fertilizer total control experiment plot yield statistics table
(2) Variance analysis and F test of test results
Test point variance analysis result table
The results of analysis of variance were analyzed by F test. The difference in yield at the test point reached a very significant level of 1%, indicating that the change in the application rate of nitrogen fertilizer had a significant effect on the yield of summer peanuts under the same application of phosphorus and potassium. To find out the exact location of the difference, a minimum significant difference (PLSD) comparison is needed for the true difference between treatments. When the error degree of freedom df=6, t0.05=2.447, t0.01=3.707, Sx1-x2=0.480. Then, the average of each production average is compared and marked with letters, and the difference between the averages is significant. See Table 3
In this test, the yield of treatment 2 was the highest, and that of treatment 1 was the lowest. After PLSD test, the difference between treatment 2 and treatment 3 was not significant, and the difference between treatment 4 and treatment 1 was not significant.
(III) Analysis of economic benefits
Summer peanut nitrogen fertilizer total economic control economic benefit analysis table
Peanut 6.20 yuan / kg, N3.02 yuan / kg, P2O5
Compared with treatment 3 and treatment 4, treatment 2 increased yield of peanuts by 15.6 and 62.7 kg per 667 m2 respectively, with an increase of 4.47% and 20.77%. After deducting fertilizer costs, the net increase of 667 m2 was 91.96 and 394.18 yuan.
(4) Summary and discussion
The experiment showed that: soil organic matter 13.8g / kg, effective phosphorus 14.9mg / kg, quick-acting potassium 88mg / kg sandy loam soil planted summer peanuts, in the case of phosphorus, potassium (pure nutrient) 9, 6 kg per 667m2, nitrogen fertilizer different application The dosage has a significant effect on the yield and benefit of peanuts. Regardless of the yield or economic benefit, the treatment is the highest.
The above is the whole content of the field experiment research on the total control of nitrogen and nitrogen fertilizer in summer. Welcome the friends of peanut growers to come to Huinong.com to learn more and refer to it!
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