SU1628885A1 - Method of sowing flax - Google Patents

Abstract

The invention relates to agriculture, in particular to methods of growing flax. The purpose of the invention is to increase the yield and quality of flax products by optimizing the time of sowing. Sowing is carried out when the soil is heated at a depth of 5 cm to average daily temperatures ranging from 8 to 12.5 ° C. C. The method makes it possible to lengthen the harvesting period for flax at the optimum time for ripening. 2 tab.

Description

The invention relates to agriculture, in particular to methods of growing flax.

The aim of the invention is to increase the yield and quality of flax products by optimizing the sowing time.

Sowing is carried out in several terms. The first one is at an average daily soil temperature, starting at 8 ° C at a depth of 5 cm, and the next at 5-7 days. The soil is treated in autumn in the type of semi-pair. The pre-sowing treatment is carried out with the onset of ripeness of the soil at the same time for all terms of sowing. Phosphorus-potassium fertilizers are applied under the first pre-sowing cultivation in all variants, nitrogen fertilizers are applied before each sowing period. The results of the experiments, shown in Table 1, show that the optimal time for sowing flax falls on the period when the soil warms up at a depth of 5 cm to 8-12.5 ° C. the longest fiber is by 17.8%. steblisto density - by 19.4%, crop contamination lower by 31.0%. When sown at a later date (at soil temperature above 12.5 ° C), fiber yield decreased by 17.4%, seed - by 33.8%, the number of long fiber

- by 15.2%, centronomer of long fiber - by 39.0%, resistance to lodging - by 24.4%.

The cultivation of flax was studied at 10 sowing terms. The first sowing was done at the first opportunity of sowing the seeds, and the next after 5-7 days. Agrotechnics is the same. The results presented in table 2 show that the fiber yield of the proposed method is higher by 16.8%, centneromers

- by 20.7%, steblesto density - by 7.6%, weed infestation of crops by 86.7% compared with the control. When sowing flax at a later date (at soil temperature above 12.5 ° C), the yield decreased: long fiber — by 19.2%, seed — by 30.3%, quality of long fiber — by 14.9%, centneromers long fiber - by 31.2%, lodging resistance decreased by 7.9%. When sowing flax in cold soil (at a temperature below 7 ° C) yields

WITH

Os Yu 00 00 00 SL

fiber capacity decreased by almost 30%, centronomer long fiber - by 31.8%, seeding debris doubled. The average long-term meteorological data can serve as a guideline for optimal sowing time.

Sowing flax can be carried out for 20 days. An extension of the sowing period to 20 days allows sowing to be carried out in several periods. Sowing flax for several periods makes it possible to lengthen the period of harvesting at the optimum time for ripening, which will reduce the workload during the period of linen care and harvesting.

Claims (1)

Invention Formula The method of sowing flax-flax, including sowing in several terms, about tl and h and y with the fact that, in order to increase the yield and quality of flax production, sowing is carried out when the soil is heated at a depth of 5 cm to average daily temperatures within 8-12.5 ° С. The main indicators of the proposed and known methods. according to experiments conducted on an experimental basis Zhodino, Minsk region (on average for 1973-1975). Table 1 table 2 The main indicators of the proposed and known methods, according to the experiments conducted on the experimental field of the Brest region s, - x. experimental station (on average for 1980-1982)