Zobrazeno 1 - 10
of 29
pro vyhledávání: '"R Rauschkolb"'
Publikováno v:
California Agriculture, Vol 28, Iss 6 (1974)
For several years, rapid tisue tests have ben used in the field to evaluate plant nutritional status and to diagnose deficiencies. But they have ben used only incidentaly to make fertilizer recomendations, or to evaluate a fertilizer program, partl
Externí odkaz:
https://doaj.org/article/f9ecf74ed1484b12819b36f058e18732
Autor:
F Broadbent, R Rauschkolb
Publikováno v:
California Agriculture, Vol 31, Iss 5 (1977)
In an irrigated agricultural system, the fate of nitrogen in the soil is inescapably linked to water management. This has been confirmed by recent U.C. research into the relationship between applied nitrogen, crop yield, and nitrogen pollution potent
Externí odkaz:
https://doaj.org/article/a060664f42244f95a5a0de4d936865db
Publikováno v:
California Agriculture, Vol 30, Iss 11 (1976)
Fertilizer uptake by irrigated plants is influenced considerably by fertilizer placement and timing and by water application methods. Because some fertilizer elements move with water in the soil, these plant nutrients must remain or arrive within the
Externí odkaz:
https://doaj.org/article/26f175ffe1e84efd8a6215cbd588671f
Publikováno v:
California Agriculture, Vol 30, Iss 11 (1976)
Research and experience have shown that proper management is the key to using dairy manure to fertilize crops without creating environmental problems.
Externí odkaz:
https://doaj.org/article/68ce52210efc4e6fb07f0be8eb62a254
Publikováno v:
California Agriculture, Vol 30, Iss 5 (1976)
The disadvantages of clogging drip lines and assumed lack of movement have prevented the application of orthophosphate through drip irrigation systems. Orthosphosphoric acid can be applied without these disadvantages when extreme care is used. Organi
Externí odkaz:
https://doaj.org/article/e4cf4682484948c5a05291ad31dd0af4
Autor:
K Mayberry, R Rauschkolb
Publikováno v:
California Agriculture, Vol 29, Iss 3 (1975)
In the imperial valley it has been a common practice for growers to apply high rates of nitrogen in the form of calcium nitrate, in an attempt to increase the growth rate of head lettuce during cold weather and to improve external head color.
Externí odkaz:
https://doaj.org/article/fee6777989074473943023ce855f880d
Publikováno v:
California Agriculture, Vol 28, Iss 8 (1974)
Commonly available commercial phosphate fertilizers move very little from point of contact with the soil—resulting in inefficient utilization of surface-applied materials. An organic phosphate compound, glycerophos-phate, has been shown to move thr
Externí odkaz:
https://doaj.org/article/a780ca753fef4163ad37d133bd7045e4
Publikováno v:
California Agriculture, Vol 28, Iss 6 (1974)
THE STUDIES TO CALIBRATE the rapid tissue test with the nitrogen nutritional status of sorghum were conducted in a nitrogen deficient field on the Rosolia Ranch near Orland. In 1970, initial soil samples were taken and plots laid out in a randomized
Externí odkaz:
https://doaj.org/article/91956a83881a4abdb2d79d08d90f84fc
Publikováno v:
California Agriculture, Vol 27, Iss 3 (1973)
In 1969, concern for the environment and problems with existing methods of disposal of solid wastes from canneries led the Santa Clara County canning industry to investigate new approaches to waste disposal. In 1970 the local industry formed the Coop
Externí odkaz:
https://doaj.org/article/df1b7c15a75b48dababae00006bc54a3
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