Special fertilizer for rice
A special fertilizer and rice technology, which is applied in the field of special fertilizer for rice, can solve the problems of partial application of chemical fertilizers, nutrient supply and demand, imbalance, and inability to fully meet the needs of rice growth, and achieve comprehensive nutrition, reasonable ratio, and improved fertilizer utilization. Effect
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Embodiment 1
[0019] (1) Soil properties: the soil type is sandy soil, and the soil fertility is above average.
[0020] Rice for testing: the variety is Denong Zhengcheng Seed Industry "6326" (indica rice).
[0021] Design of the experiment: Two treatments were set in the experiment, two repetitions were made, the area of the plot was 0.2 mu, and a protection row was set up in the plot.
[0022] Treatment 1: special fertilizer for rice (N, P, K content 13-7-5) 30kg / mu; topdressing urea 10kg / mu at turning green tillering stage, special fertilizer for rice (13-7-5) 15kg / mu; topdressing at booting stage Apply urea 8kg / mu. Treatment 2: basal application of compound fertilizer (N, P, K content 18-10-12) 30kg / mu; topdressing urea 10 kg / mu and compound fertilizer (18-10-12) 15 kg / mu at turning green tillering stage; booting Topdressing urea 8 kg / mu.
[0023] Other field management measures were the same.
[0024] Field management: Seedling cultivation (dry cultivation) on May 5, transplanti...
Embodiment 2
[0031] Soil properties: The tested soil is oil sandy soil with medium fertility (Table 1).
[0032] Table 1 Basic physical and chemical properties of the tested soil
[0033]
[0034] Test fertilizer:
[0035] ①Special fertilizer for rice (13-7-5)
[0036] ② Inorganic compound fertilizer (2) 45% ( 15-15-15 )
[0037] ③ Habitual fertilization
[0038] Experimental design: The experiment set up three treatments, repeated three times, arranged in random blocks, a total of 9 plots, with an area of 100m 2 , except for the different fertilizers in each treatment, other agronomic measures were the same, and no foliar fertilizer was used. There is a protection line in the community. See Table 2-3 for experimental treatments.
[0039] Table 2 Fertilizer usage of each treatment Unit: kg / mu
[0040]
[0041] Table 3 Nutrient consumption in the whole growth period of each treatment
[0042]
[0043] Field management: Sowing on May 22, transplanting on June 8, machine tr...
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