No-tillage rotation method for Avena sativa and forage sorghum in coastal mud flat

Abstract

The invention discloses a no-tillage rotation method for Avena sativa and forage sorghum in a coastal mud flat. The method comprises the following steps: (1) selecting a planting area, (2) managing soil in spring, (3) planting Avena sativa, (4) planting forage sorghum, (5) performing growth and harvest of forage sorghum and (6) performing change into a next crop. According to the no-tillage rotation method, crop rotation farming agriculture and physical, chemical and biological control measures of saline-alkali land are combined organically, a saline-alkali land improvement mode with ecological, economic and social benefits is obtained, and a positively promotion effect is generated on transformation of saline-alkali land in the coastal mud flat and sustainable development of agriculture.

Description

technical field

[0001] The invention relates to the technical field of continuous agricultural transformation of coastal tidal flats, in particular to a coastal tidal flat oat-sorghum forage-free plant that reduces production costs and improves production efficiency, promotes the upgrading of the planting structure in saline-alkali land, and enriches the industrial structure of tidal flat saline-alkali land. Rotational cropping methods. Background technique

[0002] Salinity-alkali stress is one of the most important stress factors affecting agricultural production and land productivity. According to incomplete statistics from UNESCO and FAO, 25% of the world's land area is affected by salinization. The area of ​​saline-alkali land in China is about 99.13 million hm 2 , accounting for 26.3% of the world's saline-alkali land area, which is widely distributed in coastal and inland areas, and most of the saline-alkali land has been under development. Jiangsu's coastal coastl...

Examples

Embodiment Construction

[0027] A coastal tidal flat oat-sorghum forage grass no-tillage rotation method, the steps of the method are: 1, select planting area: according to the salt content of the soil plow layer and the salt-tolerant threshold of oat-sorghum forage grass to determine the planting saline-alkali plot, specifically : Because the oat root system is distributed 30cm deep and the sodium chloride salt salt tolerance threshold is 0.6%, the sodium salt content of the plow layer when planting oats is selected to be controlled below 0.6%; the sodium chloride salt salt tolerance threshold of sorghum forage grass is 0.5%, and summer colonization When sorghum is forage, control the sodium chloride salt in the plowing layer to less than 0.5%; plow the soil in winter to 30cm to freeze and open ditches with a distance of 3.0m and a depth of 30cm to prevent stagnation; 2. Spring soil management: apply organic fertilizers and compound fertilizers After mixing with nitrogen fertilizer, use a rotary tille...

technical field

[0001] The invention relates to the technical field of continuous agricultural transformation of coastal tidal flats, in particular to a coastal tidal flat oat-sorghum forage-free plant that reduces production costs and improves production efficiency, promotes the upgrading of the planting structure in saline-alkali land, and enriches the industrial structure of tidal flat saline-alkali land. Rotational cropping methods. Background technique

[0002] Salinity-alkali stress is one of the most important stress factors affecting agricultural production and land productivity. According to incomplete statistics from UNESCO and FAO, 25% of the world's land area is affected by salinization. The area of ​​saline-alkali land in China is about 99.13 million hm 2 , accounting for 26.3% of the world's saline-alkali land area, which is widely distributed in coastal and inland areas, and most of the saline-alkali land has been under development. Jiangsu's coastal coastl...

Examples

Embodiment Construction

[0027] A coastal tidal flat oat-sorghum forage grass no-tillage rotation method, the steps of the method are: 1, select planting area: according to the salt content of the soil plow layer and the salt-tolerant threshold of oat-sorghum forage grass to determine the planting saline-alkali plot, specifically : Because the oat root system is distributed 30cm deep and the sodium chloride salt salt tolerance threshold is 0.6%, the sodium salt content of the plow layer when planting oats is selected to be controlled below 0.6%; the sodium chloride salt salt tolerance threshold of sorghum forage grass is 0.5%, and summer colonization When sorghum is forage, control the sodium chloride salt in the plowing layer to less than 0.5%; plow the soil in winter to 30cm to freeze and open ditches with a distance of 3.0m and a depth of 30cm to prevent stagnation; 2. Spring soil management: apply organic fertilizers and compound fertilizers After mixing with nitrogen fertilizer, use a rotary tille...