SU733557A1 - Method of growing year-and-a half mulberry tree seedlings - Google Patents

Description

between the spacing of x, and five to seven irrigation during the growing season. In October, months, the digging of one and a half year old seedlings was carried out. Before or after digging, cut off the side shoots. Dug-out old-and-half selntsy are sorted according to GOST 13335-69 and sold to households 1, 2.

The disadvantage of the existing method is that it takes almost two years to grow one and a half year old seedlings. However, the yield of standard seedlings per 1 hectare of the sowing unit is very low and does not exceed 200400 thousand. During the winter period, from 60 to 90% of the length of the stem of summer seedlings (the aerial part) freezes over and in spring in the second year of the growing season such seedlings begin their growing season with the formation of side shoots that require cash to clean up before or after digging.

Depending on the power on the plant, three to ten lateral shoots are formed (one of the central lateral shoots grows vertically and forms the shtam of the seed), resulting in adverse conditions for normal growth, especially shallow seedlings, as large seedlings on which more lateral shoots are formed inhibit growth retardants. Such small, depressed overwintered sunflowers die in the middle of summer or until the end of the growing season, that is, dry out. The number of dead seedlings, depending on the thickness of the stand, is 35-45% of the total number of overwintered plants.

As a result of the formation of lateral shoots, a plant stem does not form correctly (a bend is obtained), which leads to a decrease in the quality of the seedlings.

The aim of the invention is to increase the yield and improve the quality of cultivated mulberry seedlings.

The goal is achieved by the fact that in the second year after sowing in early spring (March), the above-ground part of the overwintered seedlings is cut at the soil level, i.e. leveled trimming and mineral fertilizers at the rate of kg / ha (active ingredient): nitrogen 240, phosphorus 90 and potassium 45; 50% nitrogen

immediately after pruning of plants and 50% of nitrogen are introduced and the total rate of phosphorus and potassium is introduced 4045 days after the first term.

The proposed method for growing seedlings is as follows.

Soil preparation, sowing of seeds and agroflow in the first year are carried out according to the existing method. In the second year in early spring (March), the above-ground part of the overwintered seedlings is cut (secateurs) at the soil level and the soil is treated in irrigated furrows with a DT-24-3 tractor with a mounted cultivator. At the same time with the treatment, nitrogen fertilizers are applied at the rate of 120 kg / ha (active ingredient).

Irrigate furrows are cut and irrigated. When the cut seedlings reach a height of 20-25 cm (May), the second part of the mineral fertilizers is applied at the rate of kg / ha: nitrogen 120, phosphorus 90, and potassium 45. During the growing season, eight to ten waterings and two three cultivations. Watering is completed at the end of August and the digging of the seedlings is carried out in a hole.

The advantage of a new method of growing one and a half year old seedlings is that after leveling the cuttings above the level of the soil in early spring, all small and large seedlings start vegetative growth at the same time from the same level. On each cropped sun, it wakes up in growth along one bud that is closer to the root plant neck and, as a result, side shoots are not formed. Also, the inhibition of small plants in the sowing departments is not observed and the enormous work on labor expenditure for cutting (trimming) the side shoots disappears.

In addition, the trunk is formed correctly and the quality of one and a half year old seedlings is improved.

Tests have shown that when pruning the seedlings in early spring above the soil level, the survival rate of the seedlings increases by 34% and the qualities of the 1.5 year old seedlings are improved; 94 thousand units are received from 1 ha. Grade III seedlings, 104 thousand pcs. under run and 390 thousand pieces. grade G varieties against 72.80 and 233 thousand pieces. with free growth (table). The results of testing methods of growing mulberry and a half year old seedlings

1 (experience) ,. Pruning of seedlings in early spring above the soil level0, 5 44.5 371.0 133.9 47, 2 (control). Free growth of seedlings per year 0.5 33.2 277.0 100.0 36 re-growing

invention formula

A method of growing one and a half year old mulberry seedlings, which includes preparing the soil, sowing the seeds, inter-row treatment, applying fertilizers and irrigating, characterized in that, in order to increase the yield and improve the quality of the grown seedlings, one year after sowing level

soils with nitrogen fertilizers, and upon reaching the heights of 2025 cm nitrogen, phosphorus, and potash fertilizers.

Sources of information taken into account in the examination

1.Dichenko A.S. et al. Ways to expand and improve the nutritional base of sericulture, Tashkent, 1967.

2. Bogautdinov N.G. and others. Educational book silkworm. M., 1973. 52.0 194.0 77.2 9.5 2.4 40.5 83.7 116.8 7.1

Claims (1)

Claim A method of growing one and a half year old mulberry seedlings, including preparing the soil, sowing seeds, inter-row cultivation, applying fertilizers and watering, characterized in that, in order to increase the yield and improve the quality of the grown seedlings, a year after sowing, spring seedlings are trimmed at the level of 35 soil with by applying nitrogen fertilizers, and when the seedlings reach a height of 2025 cm, they make nitrogen, phosphorus and potassium fertilizers.