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- W2377103744 abstract "Based on the analysis of the result of experiments carried out in 1994~1995 and 1996~1997, it is confirmed that winter drought of wheat is a kind of physiological drought, because moisture in frozen soil is difficult to be absorbed by roots and tissues of seedlings may be dehydrated or even killed by dry surface soil. It is suggested that the depth of dry surface soil is a reasonable index of winter drought of wheat. the best period of Spray irrigation for remedy is that when the mean temperature reaches above 0℃ (the 2nd and 3rd 10days of Feb. in Beijing area) and there is no cold days after then. Irrigation quantity can be calculated by the formula:V=6.67h(θ-θ 1)ρ or H=h(θ-θ 1)ρ. Spray irrigation in early spring can eliminate dry soil layer, decrease the variation of soil temperature round the tillering nodes. As a result death of plants will be reduced and the number of roots, ears, grains and grain weight will increase. It is suggested that spray irrigation in early spring is a good method for attenuation of winter drought of wheat and increase of yield in North China." @default.
- W2377103744 created "2016-06-24" @default.
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- W2377103744 date "2001-01-01" @default.
- W2377103744 modified "2023-09-23" @default.
- W2377103744 title "Analysis on the Effects of Spray Irrigation in Early Spring on Dry Wheat Field" @default.
- W2377103744 hasPublicationYear "2001" @default.
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