Paddy rice prime field fertilization method for soda saline-alkali soil
A technology for soda saline-alkali land and saline-alkali land, applied in fertilization methods, fertilization devices, applications, etc., can solve problems such as unreasonable application of chemical fertilizers, impact on rice yield, waste and loss of fertilizers, etc., reduce the application of green fertilizers, facilitate absorption, and use The effect of fertilizer cost reduction
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specific Embodiment approach 1
[0020] Specific embodiment one: the method for field fertilization of paddy rice in soda saline-alkali land of the present embodiment is specifically carried out according to the following steps:
[0021] 1. Determine the fertilization amount of rice field in saline-alkali land. According to the soil nutrient characteristics of soda saline-alkali land, the total application amount of nitrogen fertilizer is 150-180kg / ha, the total application amount of phosphorus fertilizer is 40-60kg / ha, and the total application amount of potassium fertilizer is 30-50kg / ha , Nitrogen fertilizer is divided into base fertilizer, tillering fertilizer and ear-grain fertilizer for three times, phosphorus fertilizer is applied as base fertilizer once, and potassium fertilizer is divided into base fertilizer and ear-grain fertilizer for two times;
[0022] 2. Determine the fertilization varieties of rice fields in saline-alkali land. According to the salinity characteristics of saline-alkali land, de...
specific Embodiment approach 2
[0024] Embodiment 2: This embodiment is different from Embodiment 1 in that: the total application rate of nitrogen fertilizer is 160-170 kg / ha. Others are the same as in the first embodiment.
specific Embodiment approach 3
[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the total application rate of phosphate fertilizer is 50kg / ha. Others are the same as in the first or second embodiment.
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