With regard to the reproductive nature of the cuisine, based on experience gained over the years in the practice of growing the cuisine in the golden mountain region, and in order to meet the quality requirements of the spherical round, yellow-free, insect-free and single-ball weights above 500 g, the following observations are made for the management of cultivation。
Planting seedlings
Quasi vegetables are suitable for life in shanghai for a long period of time from september to may of the following year and are collected from late october to late may of the following year, with an acreage of 10 grams。
The seeding took place after 1 august in the fall, with the selection of medium- and heat-resistant radars (raider), the selection of cold-resistant regacy (legacy) after 15 september and the selection of salinas (salinas) by mid-february。
Mid-august — mid-september sprouts require low-temperature treatment for seedlings, with no need for low-temperature treatment at other times。
Fine
Before planting, daejeon must prepare for the full removal of leaves and weeds from the pre-crop crop, so that the base weight (2000kg organic fertilizer per acre and 40kg compound fertilizer with potassium sulphate) can be spread evenly in the field and then used machine tillage, so that the fertilizer can be fully fertilized into the crop floor, so as to eliminate the emergence of a layer of fertilizer, damage to the root of the slurry and affect growth. Once the fields have been completely levelled, the ditches are torn and the surfaces are to be flattened to meet the demands of the soil. In the evening before the planting day or two, acres were sprayed evenly with a herbicide of 2. 5-32 plus water of 30-40kg water + 500 times thionphos-methyl to prevent grass and ground pests. It was accompanied by an outlet, a field and a ditch。
It's a legitimate secret
In spring and autumn, ball and course vegetables are grown in large sheds, which are set at 30 to 35 cm range, per acre density: about 3,300 in large huts. They are grown in the form of four darts, three rows each, and approximately 95 ~ 100 units each. A rope is required to be planted, with two ditches not less than 20 cm apart, otherwise it is likely to cause the sloping or water scarcity of the collage. In the case of plant seedlings, the seedlings must be established in a timely manner so that they are not planted overnight. Weak seedlings and disease seedlings should be removed during planting in order to improve the survival of seedlings。
Fertilizer preparation
In general, two to three follow-up exercises are carried out, depending on the specific conditions of the soil mass, the fertilizer base and the size of the seedling. The second one, two weeks after planting, was five to six leaf blades, with a three-dollar compound weight of 10kg per acre; the second one, with a three-dollar compound weight of 10kg at the start of the ball, and the second one, with 20 per cent and 25 per cent of the total chemical fertilizer, respectively. Fertilizers are to be applied, planted into the soil, then water is to melt the fertilizer, while ventilation is to prevent fertilization from causing gas damage。
I'll water it
The bottom water is to be poured before planting, the root water is to be poured immediately after planting, and the soil is to be moist on a regular basis from the rear to the closure. In the light of the growth and soil moisture of the crumbs, if necessary, half a ditch can be pumped to withstand drought in order to ensure that the individual is fully growing and well nourished. In addition, mid-croping and pine soil 1 to 2 times after the live tree, both to clear weeds and to improve soil permeability, and to keep dry and wet, mainly to prevent the occurrence and spread of the disease, is strictly forbidden after sealing. When leaves are formed, every effort is made to meet the water requirements of the crib and to promote gutter irrigation. Stop watering about two weeks before harvest。
Weining demands
In the shanghai region, december and january are the coldest months of the year, with the use of the ceiling membranes to protect the temperature of those set to be planted in the sheds, when the harvest standards are met or when the ball is closed. In the morning, air should be ventilated in time to prevent fog and backcage. When extreme temperatures occur, when short-term temperatures of 3 °c ~ 5 °c are encountered, a surprise response is taken, i. E., close the huts and cover them with an unwieldy sheeted surface over the cuisine to protect against severe freezing。
Disease control
In the autumn, raw vegetables are grown, with the pre-pregnancy pre-prevalence and post-prevent the disease. The main pests on the raw vegetables are: underground pests (small tigers, twigs, etc.), beet night moths, slashed night moths, pyrochlors, cotton bellworms, aphids, smoke ticks, etc。
The main diseases are: frost, fungi, asympathia, bacterosis, etc。
The main methods of response are provided in the attached table. Note: (1) only listed pesticide varieties may be used. (2) care is taken that pesticides are used interchangeably, generally not more than twice for each pesticide. (3) strict control of pesticide concentrations and safety intervals. (4) discontinuation of medication at the end of the spinach season (around 20 days before harvest) to avoid the effects of excess pesticide residues on export。
Collection
When the ball is solid and leaves are free of disease, and the single ball weighs more than 500 g, it can be collected and sold. The average total fertility period is 85 to 130 days (the time of seeding, 60 to 90 days in the field) with an acre production of 1000 to 1500 kg。
(agricultural technology school)
