SU897192A1 - Method of growing millberry tree for feeding silk worm mouth caterpillars - Google Patents

Description

The invention relates to agriculture, namely sericulture, and may be used in the cultivation of silkworm larvae. There is a known method of growing mulberries for silkworm caterpillars, including planting according to Scheme 4, .0x0.5 and washing off the lower branches in the root of trees 1. A disadvantage of this method is the low yields of silkwood. The purpose of the invention is to increase the yield of carrying mulberries. The goal is achieved by planting the seedlings by cjjeMe 1.2 x 0.2 m, after planting the seedlings are cut into a spike up to 5 cm and for the third year after planting in weight, the mulberry branches are cut at Soils in summer cut off 1/3 of the length of the upper part of the shoot, and in the fall all newly grown shoots are cut. The method is carried out as follows. The planting of seedlings in spring or autumn by a known method is carried out according to a plan of 1.2 X 0.2 m by placing on 1 hectare 41666 pcs of plants. After planting, the seedlings are cut to a thorn up to 5 cm in height, and operation begins in the 3rd year after planting and leads it by continuous cutting of mulberry branches at the soil level in spring and cutting 1 / 3. the length of the apex of the shoot in summer and full cutting of new growth shoots in the fall. Plants prior to their entry into operation time are fertilized with mineral and organic fertilizers, kg / ha: nitrogen 180, phosphorus 60, potassium 30, which contribute 50% in the early spring (March) and the remaining 50% at the end of the day. Organic fertilizers are applied at the rate of 10 t / ha in a year. With the start of operation (in the 3rd year of planting), the doses of added mineral fertilizers increase, kg / ha: nitrogen 240, phosphorus 120, capy 60. These fertilizers are applied in three periods: early, in spring 50% of nitrogen and 100% phosphorus and potassium, at the end of 25% nitrogen and. the remaining 25% of nitrogen - in the summer at the end of June, i.e. 20-25 days before re-use. Organic fertilizers are applied in a year at the rate of 10 t / ha in the fall. Main and inter-processing of 1PHERMANES, fertilization, loosening

soil irrigation carried out according to existing agropravil,

For the purpose of collecting leaves for younger caterpillars in different seasons of fertilization, the following threefold system of exploitation of plantations is used: continuous cutting of branches at the soil level for early-spring feeding; cut the tops of the shoots by 1/3 for summer feeding; and full cutting of new growth shoots for autumn feeding.

After autumn cutting of shoots on thistles, thorns of 120130 cm long remain, these shoots are not damaged by frost in the autumn-winter period and powerful spring shoots are formed on them, which are cut at the soil level for early-spring feeding.

After spring operation, new shoots are formed, and by summer feeding, they reach a length of 150–160 cm, of which 1/3 of the apex is cut for summer feeding. After summer cutting of the tops, shoots of 50-70 cm long are formed. These shoots are completely cut for autumn dressing and long spikes remain on the bushes for wintering.

Example. The control option is the existing bush mulberry plantations with a width of between 4,0 X 0,5 m, grown according to agropravilam and operated once. Mineral fertilizers are applied in two terms: in early spring and at the end of time, based on Kf / ra: nitrogen 120, phosphorus 60, potassium 30. The results of the research are shown in the table.

Spring 22.833 75.89 1.2x0.2m 0.548 4.0 X 0.5 m (control) 4.775.86 Summer 19.2 75.44 1.2 X 0.2 m 0.460 4.0 X 0.5 m ( control) Autumn 1.2x0.2m 0.510 21.2 75.75 4.0 X 0.5 m (control)

As can be seen from the table, with a reduction in the width of the aisles from 4.0 to 1.2 m and the distance between plants in the range from 0.5 to 0.2 m and the use of a three-fold system of leaf exploitation increases more than 4 times 10 times. for younger caterpillars subject to multiple feeding.

The laying of cluster plantations for caterpillars of younger ages according to the 1.2 X 0.2 m scheme and the use of a 3-fold system of their operation makes it possible to retain the main forage base (linear plantings) when transferring to multiple feeding.

Standard and wide variety plantations) for older caterpillars.

Claims (1)

Invention Formula The method of growing mulberries for silkworm caterpillars, including planting seedlings, characterized in that, in order to increase mulberry yields, seedlings are planted according to the 1.2 x X 0.2 m scheme, after planting, the seedlings are cut into a thorn height up to 5 cm and in the third year after planting in the spring, mulberry branches are cut at the soil level; in summer 5, 1/3 of the length of the upper half of the worm feeding is cut down 3.91 24.48 9.66 11.21 3.55 3 , 23 20,219,91 13,444,23 Worm-feeding period 3,66 22,91 9,94 11,65 4,12 Worm-feeding period 3,83 23,93 M, 45 12,28 4,17 58971926 Escape, and in the fall, cut everything again. 1. Ways to expand and improve grown shoots. feed base of sericulture. Tashkent, Information sources, Uzbekistan, 1967, p. 72 (proprienie in attention during the examination of the type).