Zobrazeno 1 - 10
of 15
pro vyhledávání: '"L Werenfels"'
Publikováno v:
California Agriculture, Vol 16, Iss 8 (1962)
Investigations on the west side of the San Joaquin Valley indicate that wells carefully located at sites of good aquifer characteristics can be pumped effectively to control water tables over a limited area. Previous experience by local irrigation di
Externí odkaz:
https://doaj.org/article/1f1535b9f4044ace877b592fa43bf303
Publikováno v:
California Agriculture, Vol 19, Iss 5 (1965)
The practice of close-spaced vertical mulching does not appear to be the complete solution to the problem of improving old golf greens. Better irrigation systems are also needed to take advantage of the new root environment provided by the improved s
Externí odkaz:
https://doaj.org/article/2994486c8346488986c569c06d59631d
Publikováno v:
California Agriculture, Vol 22, Iss 6 (1968)
Size and placement of furrows, and the use of grass culture can have a marked effect on irrigation water penetration rates, according to these tests in Fresno County vineyards.
Externí odkaz:
https://doaj.org/article/2c5458a2c3dd4f5c83058d0e91007ab3
Autor:
D Holmberg, L Werenfels
Publikováno v:
California Agriculture, Vol 21, Iss 9 (1967)
Test plots for this water-use study were in a dry-farmed almond orchard, part of which was under non-tillage and part under clean cultivation. Soil moisture sampling showed that in years of heavy winter cover crop growth, more moisture was used out o
Externí odkaz:
https://doaj.org/article/0b25b387aeb44c49a19fdafe782281f5
Publikováno v:
California Agriculture, Vol 21, Iss 8 (1967)
Irrigation water infiltration tests were conducted on two typical, slowly permeable vineyard soils on the east side of Fresno County. Furrow water intake was increased by soil applications of gypsum and sulfur and by adding dissolved gypsum in the ir
Externí odkaz:
https://doaj.org/article/b32262d94af64dcab22ca75475756d93
Publikováno v:
California Agriculture, Vol 21, Iss 8 (1967)
Preharvest irrigation experiments for three years with cherries in Son Joaquin County (using Bing and Royal Ann varieties) showed an increase of 0.5 mm in fruit diameter for irrigated as compared with nonirrigated plots.
Externí odkaz:
https://doaj.org/article/79a6bc905f94486883fae614b5fae902
Publikováno v:
California Agriculture, Vol 18, Iss 7 (1964)
Irrigation recommendations fo,r peaches have been based mainly on experimental work carried out 30 to 40 years ago. Today's yield potentials make these early recommendations questionable. A higher level of soil moisture has been found to result in la
Externí odkaz:
https://doaj.org/article/b7f1339403944e318220fe0912248fe3
Publikováno v:
California Agriculture, Vol 18, Iss 3 (1964)
Enveloping perforated bituminized fiber and plastic subsurface tile drain in a safflower straw sandwich gave excellent performance in maintaining field drainage in Sacramento-San Joaquin Delta tests. A 1-inch glass fiber mat also gave good performanc
Externí odkaz:
https://doaj.org/article/3c59b2c3e12d45ea8c813f20b8708fc5
Publikováno v:
California Agriculture, Vol 17, Iss 5 (1963)
Cover crops can improve water penetration in orchard soils, as compared with clean cultivation, according to Davis tests. Alfalfa and Hubam clover performed best. Clean noncultivation by use of chemical sprays had an adverse effect on soil surface st
Externí odkaz:
https://doaj.org/article/c8281719b6694425a7af01f7658dcf3c
Publikováno v:
California Agriculture, Vol 15, Iss 4 (1961)
Vineyard decline—an increasing problem in Tokay vineyards in the Lodi district—results in low yields, large losses due to sunburn damage, small berry size and other low quality factors.
Externí odkaz:
https://doaj.org/article/12091340adf34479896dd71bd255a486