A method of planting alfalfa on saline-alkali land
A technology of alfalfa and saline-alkali land is applied in the fields of land preparation, leguminous plant cultivation, agricultural machinery and implements, etc. It can solve the problems of poor ecological environment, affecting plant growth, and failure of plants to survive, so as to increase yield, improve soil structure, The effect of increasing soil nutrients
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Embodiment 1
[0034] The preparation method of the retting cow dung of the present embodiment is:
[0035] 1) Preparation of bacterial liquid: put 100g of Nongfukang biological fertilizer starter, 1kg of brown sugar and 10kg of water into a container and seal it, and let it stand for 5 days;
[0036] 2) Composting fermentation: Dilute the prepared bacterial solution with clear water, and then mix it with 2.5 tons of cow dung to obtain a fermented material. The moisture content of the fermented material is 55%, pile it up, and cover the fermented material with a film or grass Curtain, it can be used after 5-7 days of fermentation in summer.
[0037] After testing, the contents (percentage by weight) of each substance in the prepared retting cow dung are: 82.6% organic matter, 2.63% total nitrogen, 0.89% total phosphorus, 0.64% total potassium, and 66.45% water.
[0038] The method for planting alfalfa on saline-alkali land of the present embodiment, comprises the following steps:
[0039] ...
Embodiment 2
[0047] The preparation method of the retting cow dung of the present embodiment is the same as embodiment 1.
[0048] The method for planting alfalfa on saline-alkali land of the present embodiment, comprises the following steps:
[0049] 1) Selection of planting sites: In warm and semi-arid climates with an average daily temperature of 15-20°C and annual precipitation of 300-800mm, choose well-drained, pH values of 8.5-9.0, and salt content of 0.68-0.79g / kg of saline-alkali land as planting land;
[0050] 2) Improvement of saline-alkali land: remove weeds and sundries, plow 25-30cm deep with a plow, and evenly throw the retting cow dung on the surface with a Danish turning machine. The throwing thickness is 12-14cm, and the throwing amount is 13.5t / 667m 2 , and then use a disc harrow to level the land 3 times;
[0051] 3) Sowing:
[0052] 3-1) Sowing time: The soil temperature of the sowing layer is stable above 10°C, sowing in due time according to the local climate con...
Embodiment 3
[0057] The preparation method of the retting cow dung of the present embodiment is the same as embodiment 1.
[0058] The method for planting alfalfa on saline-alkali land of the present embodiment, comprises the following steps:
[0059] 1) Selection of planting sites: In warm and semi-arid climates with an average daily temperature of 15-20°C and annual precipitation of 300-800mm, choose well-drained, pH values of 8.5-9.0, and salt content of 0.68-0.79g / kg of saline-alkali land as planting land;
[0060] 2) Saline-alkali land improvement: remove weeds and sundries, use plow to plow 25-30cm deep, and use a Danish turner to throw the retting cow dung evenly on the surface with a throwing thickness of 14-15cm and a throwing amount of 15t / 667m 2 , and then use a disc harrow to level the land 3 times;
[0061] 3) Sowing:
[0062] 3-1) Sowing time: The soil temperature of the sowing layer is stable above 10°C, sowing in due time according to the local climate conditions;
...
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