How do you plant papayas? Please describe them in detail
Cucumber cultivation can be described as follows:
Selection of excellent varieties. Locally appropriate varieties include papayas in puju, a piece of melon, etc., and can pollinate each other。
2. Plantation. It is advisable to select either deep, fertile, well drained, neutral or micro-alkalin or sandy soils. Line distance 2. 5 m x 4 m. A 1-metre-long, 1-metre-wide and 0. 8-metre-deep cave was dug and 10 kg of rotting organic fertilizer was applied to each den. Before planting, a seedling of two to three years' worth is chosen, with spring and autumn planting suitable for the seedling, before the tree is sprung, before the tree leaves fall and the soil freezes, and when the fall plant is sprung, its roots heal easily, with a high rate of survival and good growth, and at the time of planting, it is chosen to grow at a height of 1. 2 metres or more, to marry more than a centimetre thick, and to heal well. The roots are required to be intact and to be planted at depths to determine the level of the surface at the end of the water and the end of the neck, and to cover 1 square metre of the membrane on the tree plate。
3. Fertilizer water management. G-fertilizers were introduced in late september, when they went through orchards, mainly in the form of school and human urine, with quick-impact n-fertilizers, 15-30 kg for larvae and 30-50 kg for large trees。
Fertilizers: 130 grams of urea per den or ditch and 400 grams of compound fertilizer for three dollars before the bud (late march to early april). A mixture of 0. 3% urea, 1% calcium phosphate and 0. 3% potassium sulphate is sprayed every two weeks after the flowering to promote fruit cell division; 0. 2% boric acid or 0. 3% boron sand is sprayed during the flowering period, to the benefit of sitting fruit. In mid-may, 100-250 grams of urea were applied to each tree of the result, either in circular evacuation or in a ditch. After harvest, a combination of nitrogen-based fertilizer was followed up with 0. 5 kg per plant。
Water management. Usually a perforation before and after the bud's onset, during the booming period and in the long run, should be properly filled and combined before winter. The water is frozen once, while papayas are afraid of flooding and should be drained in due course。
4. Integrative trim. The natural roundhead is set at 70-80 cm height, with 3-4 branches for the new selection of the branches, 3-4 in different directions, 10-20 cm branches for each branch, 2-3 branches for each branch, and a small branch for the outer side of the branch, or a parent branch and a branch。
Summer shears: mainly germinates, grafts, grafts, etc. Bleeding: timely elimination of the sprouts with the following tectonics, and of the competition branches on the back of the main branch and the extension of the branches. Creature: when the main branch is extended to 50-60 cm, the main branch is bred twice. The other parts are strong, stand up and overlap with the main branch, and cross-crowd new steps up to 20 centimetres of heart, prompting a second wave. Rattling: in late august and early september, branches that are not the main branches are usually flattened and kept as supplementary branches。
Winter shearing: in the first year of winter, the woodmelon larvae, for the purpose of contours, cut short the branches that are the main branches, leaving 30 to 40 centimetres in order. The larvae are dominated by light cutting, mainly by the removal of secret branches, competition branches, cross-cutting branches, overlapping branches, short cutting of space-bearing branches, leaving 20 to 30 centimetres to fit, and taking care of them in a timely manner when they reach 40 centimetres。
5. Flower fruit management. In order to achieve high and stable production, plantations are built with suitable pollination trees, with a ratio of 4:1 for the main plant and pollinator species, and years for the poor management of papayas, so care must be taken of the management of the flowers and the seasons must be gnawed. Of particular importance in the years to come is twig, which should be preceded by the removal of twigs, deformations, cross-chumps, and the selection of twigs of base and central fruit, with a distance of about 20 centimetres between them, in order to ensure a large, productive and stable production。
6. Disease control. The diseases of papayas are very small, mainly pests, mainly aphids, papayas and red spiders。
(1) aphids such as aphids can be sprayed in may with 10% aphids 500-6,000 times the spray, 15 days a time, 2-3 consecutive times。
(2) combat papaya problems in mid-june and late july, with a small amount of 1,500-2000 times the net amount of peach or peach。
(3) red spiders can be combated with 2,000 times more wiring。
