SU1410908A1 - Method of determining critical water deficit in tree species because of air drought - Google Patents
Method of determining critical water deficit in tree species because of air drought Download PDFInfo
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- SU1410908A1 SU1410908A1 SU864057818A SU4057818A SU1410908A1 SU 1410908 A1 SU1410908 A1 SU 1410908A1 SU 864057818 A SU864057818 A SU 864057818A SU 4057818 A SU4057818 A SU 4057818A SU 1410908 A1 SU1410908 A1 SU 1410908A1
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- refreshing
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- tree species
- ratio
- water deficit
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Abstract
Изобретение относитс к физиологии и биофизике растений. Цель изобретени повысить точность и чувствительность определени потребности древесных пород в проведении освежительных или освежительно- увлажнительных поливов. Опреде.п ют относительную скорость потока пасоки непрерывно или дискретно в течение нескольких часов до восхода и нескольких часов нос.пе восхода солнца. Устанавливают минимальные значени этих показателей и рассчитывают отношение первого из них к второму. О наступлении водного дефицита суд т по значению отношени не менее единиц).The invention relates to the physiology and biophysics of plants. The purpose of the invention is to improve the accuracy and sensitivity of determining the need of tree species in carrying out refreshing or refreshing-wetting irrigation. The relative flow rate of the grasses is determined continuously or discretely for several hours before sunrise and several hours at sunrise. Set the minimum values of these indicators and calculate the ratio of the first to the second. About the onset of water deficit is judged by the value of the ratio of at least a few).
Description
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Изобретение относитс к физиологии и биофизике растений и может быть использовано в садоводстве и лесном хоз йстве при оценке физиологического состо ни растений , сравнении поливной техники, определении сроков полива плодовых насаждений , дл автоматического управлени освежительными или освежительно-увлажнительными поливами, а также в научно-исследовательских цел х.The invention relates to the physiology and biophysics of plants and can be used in horticulture and forestry in assessing the physiological state of plants, comparing irrigation techniques, determining the timing of irrigation of fruit trees, for automatic control of refreshing or refreshing-wetting irrigations, as well as in research and development. whole h.
Цель изобретени - повьииение точности и чувствительности определени потребности древесных пород в проведении освежительных или освежительно-увлажнительных поливов .The purpose of the invention is to increase the accuracy and sensitivity of determining the need of tree species in conducting refreshing or refreshing-wetting irrigation.
Способ осуществл етс следующим образом .The method is carried out as follows.
Датчики относительной скорости потока пасоки внедр ютс в ксилему стволов деревьев . Относительна скорость потока регистрируетс автоматически на диа|-рамм- 20 освежительных или освежительно-увлажни- ной ленте самопишущего прибора. При вы-тельных поливов, относительную скоростьThe relative flow velocity sensors of the paska are inserted into the xylem of tree trunks. The relative flow rate is recorded automatically on a dia- gram - 20 refreshing or refreshing-moisturizing tape of the recorder. With fine watering, relative speed
Способ определени критического водного дефицита в древесных растени х вследствие воздушной засухи, включающий измерение относительной скорости потока пасоки, отличающийс тем, что, с целью повыще- ни точности и чувствтельности определени потребности древесных пород в проведенииThe method for determining the critical water deficiency in tree plants due to air drought, including measuring the relative flow rate of the grasses, characterized in that, in order to increase the accuracy and sensitivity of determining the need of tree species for
потока определ ют непрерывно или дискретно в течение нескольких часов до восхода и нескольких часов после восхода солнца, устанавливают минимальные значени этих показателей и рассчитывают отношение первого из них к второму, при этом о наступлении водного дефицита, суд т по значению отношени не менее единицы.The flux is determined continuously or discretely for several hours before sunrise and several hours after sunrise, sets the minimum values for these indicators and calculates the ratio of the first to the second, while the occurrence of water deficit is judged by a ratio of at least one.
сокои температуре и низкой влажности воздуха даже на фоне высокой обеспеченности почвенной влагой в растении развиваетс критический водный дефицит, вызыва изменение типичной картины суточного ритма относительной скорости потока пасоки. Происходит увеличение уровн ночного потока до и выше уровн ксилемного потокаThe temperature and low humidity of the air, even against the background of high soil moisture in the plant, develops a critical water deficit, causing a change in the typical pattern of the daily rhythm of the relative flow rate of the grass. There is an increase in the level of night flow to and above the level of xylem flow
больн е единицы, sick units,
в дневные часы. Потребность древесных пород в проведении освежительных или освежительно-увлажнительных поливов определ етс путем сравнени значени относительной скорости потока пасоки в пред- расветные часы с ее значением после восхода солнца (в период с 9 до 16 часов). Полив следует производить, если отношение предрассветной скорости потока к ее дневному значению становитс равным илиduring the daytime hours. The need of trees for refreshing or refreshing-wetting irrigation is determined by comparing the relative flow rate of the grasses in the pre-bright hours with its value after sunrise (from 9 to 16 hours). Watering should be done if the ratio of the predawn flow rate to its daily value becomes equal or
ницы, nice
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864057818A SU1410908A1 (en) | 1986-04-21 | 1986-04-21 | Method of determining critical water deficit in tree species because of air drought |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864057818A SU1410908A1 (en) | 1986-04-21 | 1986-04-21 | Method of determining critical water deficit in tree species because of air drought |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1410908A1 true SU1410908A1 (en) | 1988-07-23 |
Family
ID=21234125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864057818A SU1410908A1 (en) | 1986-04-21 | 1986-04-21 | Method of determining critical water deficit in tree species because of air drought |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1410908A1 (en) |
-
1986
- 1986-04-21 SU SU864057818A patent/SU1410908A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Сельскохоз йственна биологи , 1984, № 3, с. 31-37. * |
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