Effects of Seasonal Interactions of Nitrogen, Phosphorous, and Potassium Fertilizers on Yield and Nutrient Content of Snap Beans (Phaseolus vulgaris L.)1
Open Access
- 1 January 1972
- journal article
- Published by American Society for Horticultural Science in Journal of the American Society for Horticultural Science
- Vol. 97 (1) , 44-47
- https://doi.org/10.21273/jashs.97.1.44
Abstract
Pod yields, nutrient content of plant tissues, and NO3-N accumulation in pods were determined for snap beans grown at 4 N and 2 P-K levels in the spring and fall seasons of 1968 and 1969. Increased N applications resulted in increased pod yields, higher levels of K, Ca, Mg, and Zn in the plants, and accumulation of NO3 in pods; however, the NO3 effects varied between years. Applied P-K reduced pod yield, increased Fe content of plants but antagonized Mg and Zn uptake. Of plant parts, pods accumulated the most N, P, and Zn; leaves, the most K, Ca, Mg, Fe, and Mn; and stems, the most Cu. Seasonal influence of N and P-K application rate on yield was not consistent. In general, beans had higher nutrient content in the spring than in the fall. Translocation of K, Ca, Fe, and Cu was influenced by season.Keywords
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