Intercropping model of cotton and lily

Cotton and lily intercropping is a cotton field intercropping model widely used in coastal and dry sandy soil areas along the river. the two crops have little influence on each other and are beneficial to each other in fertilizer utilization, but it should be noted that lilies can not be continuous cropping and must be rotated.

The intercropping model generally has a width of about 3 meters, planting cotton in rows of size, with a large row spacing of 140 cm and a small row spacing of 50 cm, and 4 rows of cotton in one row. Six rows of lilies were planted in large rows of cotton, with a row spacing of 20 cm, a plant spacing of 20 cm and a plant spacing of 5000 cm per mu. Cotton seedlings and transplanting were planted on both sides of the border, with 1800 to 2000 plants per mu. From July to August, lily was harvested, the yield per mu was 600kg, the yield of cotton was 80kg / mu, the output value per mu was about 3000 yuan, and the net income per mu was about 2000 yuan.

It is appropriate to sow lilies in the first and middle of October. Cotton was sown around April 10 and transplanted in mid-May.

Before sowing, the lily should dig the soil deeply in the big row, and fine rake to make the soil loose and flat, and apply fully mature high-quality organic fertilizer 3000 kg or cake fertilizer 100kg per mu.

Apply the "four fertilizers" to lilies scientifically:

First, base fertilizer, apply sufficient organic fertilizer in the cotton line before sowing, and then apply 10 kg of urea, 30 kg of superphosphate and 10 kg of potassium sulfate per mu.

Second, wax fertilizer, applying 1000 kilograms of human and animal manure per mu at the end of the cold.

Third, strong seedling fertilizer, applying 1000 to 1500 kilograms of human and animal manure per mu in the first ten days of March.

Fourth, strong slice fertilizer, applying 45,50kg compound fertilizer per mu in the first and middle of May. The fertilization of cotton should be properly adjusted during the growth period, generally not fertilized in the early stage, at the same time, attention should be paid to the control of vigorous growth, flower and boll fertilizer should be re-applied to ensure that fertilizer is needed in the boll setting period, and cover fertilizer should be applied in the later stage if the growth is weak.

Strengthen the management of lilies afraid of wet, to open a good set of ditches, and often clean up, timely clearing ditches to reduce stains after rain. Cotton symbiosis with lily seedlings in the later stage, small rows should be pushed and ridged after boll opening, which is convenient for large row operation and lily seedling growth.

The "commonly used intercropping pattern in cotton field" will be completed by the end of this period. Intercropping in cotton fields can also interplant soybeans, mung beans and summer vegetables in cotton rows, forming cotton and legume intercropping model, cotton and vegetable intercropping model and so on. The planting patterns of these models are basically the same, the cultivation techniques are easy to master, and the comprehensive benefit is higher. However, it should be noted that the symbiotic period can only be in the cotton seedling bud stage or boll opening stage, and the flower and boll stage must be avoided, otherwise the mutual influence is too great, and it is difficult to obtain high yield and high efficiency.