GLOSSARY 555 



Hybridized. Crossed. 



Impregnation. See fertilization. 



Internodes. That part of a stem lying between two nodes or 



joints. 



Intertillage. Cultivation among growing plants. 

 Ipomaea batatas. The scientific name of the sweet-potato plant. 



Johnson-grass. A perennial grass, difficult to eradicate. 



Kernel. In common usage, a grain or seed. 

 Kiln. A term usually applied to a house or room in which some 

 article is to be dried by artificial heat. 



Lady-beetle. See lady-bug. 



Lady-bug. A group of small beetles, many of them preying on 

 harmful insects. 



Land plaster. An impure form of sulfate of lime. It is some- 

 times bought as a fertilizer ; it is also obtained free as a neces- 

 sary filler in acid phosphate, about half the weight of which 

 consists of land plaster. 



Larva, plural larvae. The grub or caterpillar stage of any 

 insect ; this is the stage in which most insects feed most 

 ravenously and in which they make most of their growth. 



Leaching. The dissolving of plant food in the water of the soil 

 and its removal in the water that drains away. 



Leaf-blade. The expanded part of a leaf. 



Leaf-sheath. See sheath. 



Leaf-stem. The stalk, which supports the expanded part of 

 a leaf. 



Leaflets. The separate, complete, leaf-like parts that make up 

 what is botanically a leaf of locust, pecan, etc. 



Legume. A plant bearing a pod ; the legumes in common use in 

 agriculture, such as cowpeas, clovers, etc., are chiefly 

 valuable because the enlargements (tubercles or nodules) 

 on their roots store up nitrogen from the air for the enrich- 

 ment of the soil. Moreover, most cultivated legumes are 

 valuable forage plants. 



Leguminous plants. See legumes. 



Lint. The word commonly used to designate the fiber of cotton. 



Linters. The very short lint removed from cotton seed subse- 

 quent to ginning ; the removal of linters is usually done at 

 the cotton oil mills. 



Lissorhoptrus simplex. The scientific name of the water weevil, 

 which injures rice plants. 



List. A small ridge formed by throwing two furrow-slices 

 together. 



