Need of Boron Fertilization for Alfalfa in Michigan and Methods of Determining This Need
1956
Baker, A. S. | Cook, R. L.
SynopsisMany Michigan soils are relatively low in B available to alfalfa during periods when surface soils are low in moisture content. The occurrence of deficiency symptoms indicates a low level of available B and a need for B fertilization. Test results of less than 20 ppm. B in the top 1 or 2 inches of alfalfa or less than 0.9 to 1.0 ppm. soil B extractable in boiling water also indicate a need for B fertilization.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
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