Double-cropping rice planting method based on newly remediated paddy yield improvement
A planting method and technology for double-cropping rice, applied in rice cultivation and other directions, can solve the problems of not involving the yield of double-cropping rice and the inability of short-term recovery of double-cropping rice yield, etc., so as to improve water and fertilizer utilization efficiency, improve soil productivity, reduce The effect of nitrogen and phosphorus loss
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Embodiment 1
[0031] 1. Green manure planting and returning to the field
[0032] For the paddy fields that have not been planted after raising the fields, sow milk vetch on September 30 of the year when the project is completed, the variety is "Yujiang Daye", and the sowing rate is 30kg / hm 2 , the milk vetch fresh grass was turned over and returned to the field 15 days before the early rice was transplanted, and the returning amount (fresh weight) was 22.6t / hm 2 , adopt the method of tractor rotary tillage for plowing, and after plowing, the green manure plants should not be exposed;
[0033] The measured dry matter content in the milk vetch fresh grass is 9.8%, the dry weight nutrient content is 2.9% of total nitrogen, 0.3% of total phosphorus, and 4.4% of total potassium.
[0034] 2. Straw returning to the field
[0035]The early and late rice straws are mechanically harvested and returned to the field in full, and the straw corrosive agent is sprayed when the early rice straws are ret...
Embodiment 2
[0044] 1. Green manure planting and returning to the field
[0045] For the paddy fields that have been planted for one year after the field lifting, sow milk vetch on October 3 of the first year of planting, the variety is "Yujiang Daye", and the sowing rate is 30kg / hm 2 , the milk vetch fresh grass was turned over and returned to the field 18 days before the early rice was transplanted, and the returning amount (fresh weight) was 22.8t / hm 2 , adopt the method of tractor rotary tillage for plowing, and after plowing, the green manure plants should not be exposed;
[0046] The measured dry matter content in the milk vetch fresh grass is 10.1%, the dry weight nutrient content is 2.9% of total nitrogen, 0.3% of total phosphorus, and 4.2% of total potassium.
[0047] 2. Straw returning to the field
[0048] The early and late rice straws are mechanically harvested and returned to the field in full, and the straw corrosive agent is sprayed when the early rice straws are returned...
Embodiment 3
[0057] 1. Green manure planting and returning to the field
[0058] For the paddy fields that have been planted for 4 years after the field lifting, sow milk vetch on October 1 of the third year of planting, the variety is "Yujiang Daye", and the sowing rate is 30kg / hm 2 , the milk vetch fresh grass was turned over and returned to the field 15 days before the early rice was transplanted, and the returning amount (fresh weight) was 22.9t / hm 2 , adopt the method of tractor rotary tillage for plowing, and after plowing, the green manure plants should not be exposed;
[0059] The measured dry matter content in the milk vetch fresh grass is 10.3%, the dry weight nutrient content is 3.3% of total nitrogen, 0.3% of total phosphorus, and 4.4% of total potassium.
[0060] 2. Straw returning to the field
[0061] The early and late rice straws are mechanically harvested and returned to the field in full, and the straw corrosive agent is sprayed when the early rice straws are returned ...
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